STFC-RAL-CR03 R61: Thank you for joining me today.
STFC-RAL-CR03 R61: So this is a summary from the 15.th Long live private workshop which happened at Valencia.
STFC-RAL-CR03 R61: I had an interesting journey for that, and only managed to reach it on the
STFC-RAL-CR03 R61: second day of the conference because my flight had got cancelled, and so on. So I was stuck in Madrid.
STFC-RAL-CR03 R61: but everything turned out well.
STFC-RAL-CR03 R61: This was
STFC-RAL-CR03 R61: quite well attended. conference. In fact, this is the biggest number for out of the previous all the 15th conferences.
STFC-RAL-CR03 R61: We had 111 participants.
STFC-RAL-CR03 R61: and mostly, if you look at the timetable, the way it was organized was there was overview talks
STFC-RAL-CR03 R61: from major experiments, but also from the dedicated experiments
STFC-RAL-CR03 R61: in total, about 15 total experiments were covered. We had 30 plumology talks in about 5 sessions. Then there were one session for the trigger schemes where
STFC-RAL-CR03 R61: the developments for the Llp. Triggers were covered. It was an all plenary 5 day workshop total number of 65 talks
STFC-RAL-CR03 R61: and 15 plus experiments covered, and there was a good distribution of the people who attended this. Now, if you look at the distribution of the talks, how they were there. So you had about 20% of the time spent on the phenomenology and theory.
STFC-RAL-CR03 R61: About 26% of the dedicated long lived experiments then at, let's see, about 1718% bigger schemes covered some time as well. But I mean this in includes not only that
STFC-RAL-CR03 R61: talks in the Trigger Stream, but also includes the tenor
STFC-RAL-CR03 R61: part which was discussed in all the other talks as well. So this is based. This distribution is not on the based on the based on the title of the talk, but the
STFC-RAL-CR03 R61: overall configuration of any talk. So
STFC-RAL-CR03 R61: this is somehow you can basically provide the slides and then the overview of the results.
STFC-RAL-CR03 R61: That's probably
STFC-RAL-CR03 R61: so before I go into this game of covering what was discussed. Let me try to cover some basics
STFC-RAL-CR03 R61: which you might be already aware of.
STFC-RAL-CR03 R61: But just look at.
STFC-RAL-CR03 R61: That's the
STFC-RAL-CR03 R61: okay. So but yeah, let's just to set. I mean, if you do, if you are not following, what are the what are what exactly, is wrong with, and why they are
STFC-RAL-CR03 R61: being discussed in the dedicated workshops like this.
STFC-RAL-CR03 R61: so long particles are an excellent proof for the new physics, such as in the standard model and the M. Standard model. And you can see the distribution of the proper lifetime versus the particle mass in this in this plot you have.
STFC-RAL-CR03 R61: are you able to see? Let me see. Yeah, okay.
STFC-RAL-CR03 R61: no, we can't see the. We can't see the arrow. Okay, that's interesting.
STFC-RAL-CR03 R61: not the highlighter as well. Nothing.
STFC-RAL-CR03 R61: I think this should work. But okay, no worries.
STFC-RAL-CR03 R61: So you have been in the in the left side plot the distribution of the proper lifetime versus the particle mass, and you can see
STFC-RAL-CR03 R61: you get the detector from particles, and these are the standard model long with particles, and on the right of the plot. You have the stable particles. There's a big range of area which is basically quite empty. Now, the whole thing is what we have is here is, if you take a look at the
STFC-RAL-CR03 R61: this particular formula on the right, we know that the lifetime is the inverse of the decay, width, and the decay. Width press in this particular form.
STFC-RAL-CR03 R61: where we have the coupling constant Llp. Mass.
STFC-RAL-CR03 R61: And in in the denominator you have the final stage, the mediator of the instructions and the symmetries of the jury.
STFC-RAL-CR03 R61: Now, whatever the plots which you are going to see
STFC-RAL-CR03 R61: in terms of sensitivities, results, etc, etc, usually in the Bs and physics. How they are expressed
STFC-RAL-CR03 R61: are, in the form of you would see either lifetime versus
STFC-RAL-CR03 R61: mass distributions or mass versus coupling constants here, or lengthen versus coupling constant. So we will see different types of plots. So just to set you up. So basically, all of them.
STFC-RAL-CR03 R61: When they when we are discussing our lifetime of the particles, we can basically
STFC-RAL-CR03 R61: see this as the base relation
STFC-RAL-CR03 R61: when it comes to too long particles you have different. You understand model scenarios which can include Llps. For example, you have the hidden sector particles
STFC-RAL-CR03 R61: where you have this psi or Higgs going to going to depict to these long lived scalars before going to the final state particles. Then you have some models which predict the production of new leptons called heavy neutral leptons.
STFC-RAL-CR03 R61: By mixing with the static model, need to remove from the decays of the W. Bosons. And suddenly, here we have this decay of the W. Boson with the semi electronic decay.
STFC-RAL-CR03 R61: and we can have snl.
STFC-RAL-CR03 R61: That can be. The whole vacation is long lived.
STFC-RAL-CR03 R61: and then you have some source key models where there are. There are longer particles, and then you have the axiom, like particles which are light, neutral, and both ones, which are predicted by several exceptions of the standard model. They're not expected to interact primarily with the
STFC-RAL-CR03 R61: 4 pounds.
STFC-RAL-CR03 R61: Now that is the types of signature, and most mostly how longer particles are
STFC-RAL-CR03 R61: are can be can look like.
STFC-RAL-CR03 R61: But I mean if you want to see the whole.
STFC-RAL-CR03 R61: because there are a lot of models which predict these types of signatures.
STFC-RAL-CR03 R61: and which answer some of the essential questions like
STFC-RAL-CR03 R61: the configuration of the dark matter, and how it can be seen, and so on and so forth. So one paper, this basically was very important in organizing all these models, and in a way you can systematically try to see which are the areas where a particular model falls or not was done in this particular community by paper
STFC-RAL-CR03 R61: it is called beyond Collider, beyond working groups. So here what they did was
STFC-RAL-CR03 R61: they divided all the different models in this, beyond Collider one Vc, 2, Vc, 2, vc, 3. So for example, if you basically, if you see different types of results.
STFC-RAL-CR03 R61: So these are basically these divisions based on the couplings. So you would see, for example, this, even whenever you see any floors, and if you go through some of this presentations, you will see on the X-axis you will have mask, and then you have the coupling so based on the couplings.
STFC-RAL-CR03 R61: These BC. One to BC. 5 division is there really what it covers is? These are the best photons for the thermal, like dark matter. You can have the vector dark photons or scalar dark heads. Then you have the heavy neutral electrons, and then you have, and it's not just for the dark matter.
STFC-RAL-CR03 R61: Also cover geophysics beyond the dark sector, and then the BC. To BC. 11, you have the serious, and they can also be an excellent tool for dark matter. So just to set it up.
STFC-RAL-CR03 R61: Just if we look at and at the Lnc. Based Llp. Experiments, you have plethora of them mainly what and and you can see them. How in this paper paper which I have with friends, you can see the list. And what what are the regions? What are the sensitivity of of each experiment, what they are covering, and so on, and so forth. Some of the papers where I participated in in I also have
STFC-RAL-CR03 R61: paste it there, just you're interested to see. And that's what I how I am related to the community there
STFC-RAL-CR03 R61: now, coming back to the do the work
STFC-RAL-CR03 R61: 1st was this talk by Jose.
STFC-RAL-CR03 R61: which sort of introduce the community. This was the 1st talk. What exactly, is the Llc. Community? Basically, whosoever is interested in the Llps? They are the part of this. It's an open. It's basically absolutely open to everybody. You don't have to be to do something to be part of it. You can just join the conversation discussions or analysis, or if you're already involved, you can
STFC-RAL-CR03 R61: have been part in the conversation. So what I mean he's trying to summarize here that what are the open issues which exists? And we'll be talking to some of them.
STFC-RAL-CR03 R61: and they were mainly these. These were the motivation slides which were all which were there in all the different talks.
STFC-RAL-CR03 R61: And what are the challenges? So he also covered what the problems are mainly is the triggers? What are the analysis and strategies? How do we reinterpreted these results which we see in the analysis? Because there are, there's a reinterpreciation forum which has also had several meetings, because even if one particular experiment publishes some results, how that particular result has to be reinterpreted in the form of
STFC-RAL-CR03 R61: forming a bigger picture.
STFC-RAL-CR03 R61: That's something which is a challenge.
STFC-RAL-CR03 R61: And that's something which has been discussed in this. And so he highlighted what exactly are the things that we are basically trying to organize ourselves. Now.
STFC-RAL-CR03 R61: this was a big major
STFC-RAL-CR03 R61: part of the whole workshop. There were a lot of talks. My talk was also in this. But to start with, the 1st talk in this was very interesting. It was having your telephones in the ice, in the water and in the rocks. It was by Nicholas from Harvard.
STFC-RAL-CR03 R61: and mainly, I mean, if you see the configuration, a lot of Bsn, a lot of there was a lot of which is basically heavy neutral electron discussion. So what exactly is heavy neutral electrons, I mean, in the standard model
STFC-RAL-CR03 R61: you have.
STFC-RAL-CR03 R61: There are no right handed neutrinos in the central model. That means, you know, there are no masses. So what if there were right handed neutrinos that would answer a lot of questions? I will also cover some of these things in the
STFC-RAL-CR03 R61: details in the subsequent post. But what basically what it can, the way you can help them is through, and while keeping the sanity of the standard, moderate as it is for these photo frameworks who left heavy neutral electrons, you can have the mass mixing with the Hnls and the Dipole photons with the Hnls.
STFC-RAL-CR03 R61: So there are. There are different parameters for that. And and in this particular talk what Nicholas covered was mainly what are the areas and sensitivities? And in terms of the Hnl. Searches? What ice cube is able to see, what is its sensitivity what it has seen so far mainly limits.
STFC-RAL-CR03 R61: And then there's interesting proposal by him and the group. This is the group where they are basically have proposed this
STFC-RAL-CR03 R61: new detectors, which is to be based at sun, wherein there is a 1 part of the detector is on the surface, which is called surface detector. And then there is another part which is in the in the genuine lake.
STFC-RAL-CR03 R61: So it's buried in the Geneva take, and there is a
STFC-RAL-CR03 R61: cool physics case for that, because based on the placement, they also ask through
STFC-RAL-CR03 R61: the lake. So then, surface detector can be near to the interaction point where you detect and how it basically travels underground and in the water, and then can be detected. So there's a whole physics case for that. The physics cases are. Basically, if you study, then you can with this with this proposed experiments, you can study Tau mixing and then
STFC-RAL-CR03 R61: different cascades, for example, single cascade for vaginal search, dipole portal portress, for this is the ice limits. So here also you will see. So this is the mass versus the coupling. And so, for example, when you're reading these kind of plots, it is
STFC-RAL-CR03 R61: the areas above them are excluded above the lines which can be covered. Either they have already covered, or these are the ones which can be covered. These are the ones, for example, the moment and below is the one which has to be said to be explored.
STFC-RAL-CR03 R61: And so it was the side about what his work his group is doing, and the the name given for these experiments are, one is undyed, which is, I think, on the surface and sign which is unin the inside, the inside the water. And then there are different processes very covered. That's how.
STFC-RAL-CR03 R61: Oh.
STFC-RAL-CR03 R61: for example, a neutino can have 1st interaction with the surface detector, and then there can be 2 neurons. And then those 2 neurons
STFC-RAL-CR03 R61: Can be detected in the sign. So it is a forward charm production in the peaky collision. And you can see that increase in the forward hum production rates corresponds to more energy on neutrinos and more electron neutrinos.
STFC-RAL-CR03 R61: And these are some sensitivity plots where you have on the on this particular plot. Then there was a very nice talk by Jose Hernandez.
STFC-RAL-CR03 R61: I think I misplaced this particular slide.
STFC-RAL-CR03 R61: but in any case, so here you can see in terms of the total channels. The present bounds are this windows up to 2 Gb. And by the peak searches, and beyond the experiment. So this particular area which is talking about. These are
STFC-RAL-CR03 R61: mainly the beam, dump experiments, and on this area you have the providers, and so on. So when you see these plots, you see the original view of the mask versus mixing diameters. These are the parts which are either covered by a collider, or already excluded. So, for example, here, if you have the solid color, that means that it is already excluded. If you just have the lines, that is basically the sensitivity. So here, for example, this area, there was such from that
STFC-RAL-CR03 R61: which which covers this, and so on and so forth. But he covered the areas. I think there are more slides of this. I think I misplaced this, but just to, and I will come back to some of the more things from his talk.
STFC-RAL-CR03 R61: Now, one of the things which these are channels are important is in terms of one thing is the seesaw mechanism, and then the leptogenesis. I mean, if you are not aware of these terms, is that, you know seesaw mechanism is the critical thing that explains why neutrinos have such a tiny mass compared to the other fundamental particles in the standard model. It does this by introducing a new heavy particle.
STFC-RAL-CR03 R61: often right-handed neutrino type, one or a Higgs triplet tag, 2 or new permanent type 3. Whose interactions with the ordinary neutrino suppresses, observed neutron masses.
STFC-RAL-CR03 R61: So here he what he covered was, there can be 2
STFC-RAL-CR03 R61: Hnls or 3 Hns. But if you have type 3 types of Hns, then the perimeter real perimeter range is quite big, and then with that you are able to answer much more questions
STFC-RAL-CR03 R61: so and then and so, for example, in this, in these slides, what he covers is.
STFC-RAL-CR03 R61: If you have the 3 Hms versus the 2 Hms, what are the sensitivity areas? And
STFC-RAL-CR03 R61: and you can see here in this plot where he's saying how SMS can be doing the mixing with the
STFC-RAL-CR03 R61: mixing different angles, mixing angles for these hns 2 of the generals can have equal mixing, as expected, in the pseudo direct case, and maybe his outlook was that 3 H. And S. Can appear quite different than the pseudo direct materials, even though one mixing this can lead to later distribution. That's substantially different from a simple exponentiality law.
STFC-RAL-CR03 R61: And
STFC-RAL-CR03 R61: and mainly covering just the 3rd part here coming back to the Jose talk he outlined. Very well. What are the standard model? Open problems which
STFC-RAL-CR03 R61: which each portal portal can can answer? So, for example, here you have the familiar portal.
STFC-RAL-CR03 R61: Yeah.
STFC-RAL-CR03 R61: if you look at these snls, you can answer the neutrino masses and associated problems. If you look at the action portals, you are able to address the
STFC-RAL-CR03 R61: strong Cp problem, which is a fundamental question as to why? Standard model particles concerning by quantum chromodynamics, basically Qcd, which basically is the theory for the strong interactions appears to preserve Cp violation. Cp symmetry. But yeah, even though
STFC-RAL-CR03 R61: yeah, even though there is nothing in the theory which is strict, strictly forward forward Cp in the strong interactions.
STFC-RAL-CR03 R61: And then you have the vacuum stability. I mean, I got very interested in reading about vacuum vacuum stability. And what exactly is this problem? But I don't think we can cover in this talk, so I'll let you read about it. But if you look, if you are interested in the vacuum stability, then that portals are the areas where you can cover.
STFC-RAL-CR03 R61: We can. You can study this, and which might have some explanations for this problem. And then you know the darkness where you know most of the vector portals are there. So this was a pure phenomenology talk. And then he also covered the prospects of how some of these dune based experiments. There are like, for example, there are 2 phases, there's a new phase one and phase 2 detectors are based at the dune, and how they will be able to
STFC-RAL-CR03 R61: study all these different portals in the including Alps and dark scalars, and so on.
STFC-RAL-CR03 R61: Then you have laptop number violation in the
STFC-RAL-CR03 R61: connect to protect the seesaw models.
STFC-RAL-CR03 R61: This was another Hnl talk. So you know, as in the standard model, we are currently able to enable, unable to explain why, have clever oscillations.
STFC-RAL-CR03 R61: But if you basically assume that
STFC-RAL-CR03 R61: if you, if you discard the assumption
STFC-RAL-CR03 R61: that neutrinos are massless and they are only left chiral. Then you can have a way of explaining neutrino oscillations, and he covered some of the phenomenology behind. Behind this, in this particular talk there was this very interesting talk. From this ultra high energy events which were recorded in the Tm. 3 net. And Anita
STFC-RAL-CR03 R61: Anita is an
STFC-RAL-CR03 R61: experiment which is, I think, which is at the at the Antarctic where you have this hot air balloon at some height ending, and then where you where they can, they can measure the cosmic neutrinos. And so what happened was these are the highest energy of particles neutrinos ever measured, and which even basically exceeds the collider energies. If you do, the do do the
STFC-RAL-CR03 R61: try to convert it into what we can produce at the proton collider experiments, the energy of the neutrino. So this is much, much higher. And so they have been trying to explain this. How come
STFC-RAL-CR03 R61: and what are the processes which could produce these ultra high energy
STFC-RAL-CR03 R61: neutrinos? And one of the things was that, oh.
STFC-RAL-CR03 R61: if it has to be in! If the production of these has to be within the standard model.
STFC-RAL-CR03 R61: then it requires a certain amount of flux. The required flux predicts, predicts about order of 100 events in the Sq.
STFC-RAL-CR03 R61: And the problem is, IQ has not seen any of these events. So that basically draws
STFC-RAL-CR03 R61: discrepancy. And with, and if you do, a global pick of combining the as well as Anita. Then the global pick you have about 4 Sigma discrepancy of
STFC-RAL-CR03 R61: by this cannot be explained with the standard model processes, so they can be a class of models.
STFC-RAL-CR03 R61: Which can explain this and this, those class of models. You can have an explanation that. Why, these are not being recorded by the ice cube. And there's this particular realization of that model where he he covered some of the aspects of it. If you want to have a look and details on that.
STFC-RAL-CR03 R61: then we had this
STFC-RAL-CR03 R61: this talk approving the long live channels with top Philip interactions. And yeah, here it was
STFC-RAL-CR03 R61: send model, effective field theory extension with the sterile right handed neutrino. That is basically an r, and
STFC-RAL-CR03 R61: there, there, it was proposed that how, if you want to see something like that, how that particular signature can be that is, still displays vertices inside the atlas. And what would be, I mean, the quite a detailed report would be the signature. Look like.
STFC-RAL-CR03 R61: What would be the sensitivity? What can be the background, etc, etc. So this is something which is sort of as a proposal that, okay, if this particular search has to be done, and then this is how this can be done.
STFC-RAL-CR03 R61: Then there are these hidden hidden value models which really cover
STFC-RAL-CR03 R61: heavy heavy standard model mediators with the dark sector. And here also you have these kind of plots. So, for example, if you see, this is the, this is the Cms current limits
STFC-RAL-CR03 R61: and current exclusion difference from the Cms. And you see above the lines here. These are the parameters which are excluded by the current experimental data. But this is not like
STFC-RAL-CR03 R61: this is not filled up. So that means that
STFC-RAL-CR03 R61: this. This is the possibility of how much Cms. Can see. If it was colored and filled up, then would that would have been naturally meant that okay, this has already been excluded. And then, with the based on this new soft triggers this would be the possibility to explore this
STFC-RAL-CR03 R61: these kind of models, which is this dark, hidden value models. Then you have the dark sours from the
STFC-RAL-CR03 R61: sneaky, dark matter. So this was also a phenomenology talk where
STFC-RAL-CR03 R61: it what he basically tried to cover here was, so this is the
STFC-RAL-CR03 R61: relic density line, and you have below from some some below, which is from the Cm. Beam, which is being covered in the on the left. You have the dynamic detection on the right you have.
STFC-RAL-CR03 R61: on, in the center. You have the indirect detection. And and these are the sensitivities which you covered, and mainly, if you look at the module model agnostic signatures, how those signatures can look like in terms of jets and missing energy, and 4 j, and and so on. So this is something which was there.
STFC-RAL-CR03 R61: and and there's a nice thesis where which covers, for example, this, this, this
STFC-RAL-CR03 R61: this picture here, so this place vertices versus the distance visible and invisible. And what are the types of signatures it can cover. For example, the emerging, this emerging, emerging jet means that in the beginning there is no no particle there, but out of us know where the jets emerge, and then those are the signatures which can be explored.
STFC-RAL-CR03 R61: There were other
STFC-RAL-CR03 R61: other talks by here, for example, Lucas, which was proving conversion. Driven trees out at the let's see.
STFC-RAL-CR03 R61: and and there these are the different ranges, mainly the direct detection side. And
STFC-RAL-CR03 R61: what are, what are the areas which have been excluded? And then these are the areas which could be covered by Cms and address. And here, you see, this is still the area which is still to be covered. But so there are some areas which are excluded with the existing searches
STFC-RAL-CR03 R61: then
STFC-RAL-CR03 R61: there is a interesting now coming to the this is also phenomenology, because this is like a proposed experiment, which is the low hanging grain experiment, low hanging experiment, which is based at this.
STFC-RAL-CR03 R61: it's mainly a nuclear physics spectrometer at the at the at the Physics Institute in bourn.
STFC-RAL-CR03 R61: and it mainly enables precise measurements of mass, kinetic energy and charge distribution with isotopes which are produced in the fission process. But the next iteration of it is the proposed Elsa Long Green, which is a future dark matter search experiment, and which is based at that electron structure, accelerator in bond.
STFC-RAL-CR03 R61: And what it covered was what this experiment would be capable of proving so it is still, in the proposed proposal phase.
STFC-RAL-CR03 R61: There was a very funny talk and quite interesting talk by Joelle, where he basically oh, was
STFC-RAL-CR03 R61: same, and it was like really funny dog, even though when I was reading his book yesterday in the night, around 2 o'clock, my my housemate has to shush me. Come on, Bridge, you're making too much noise, because if you just read this sushi, I don't know how many of you have seen this. Sushi 2020, 15
STFC-RAL-CR03 R61: poster. And if you just read the details of this poster, this is quite funny. And what he was. Okay, what we don't want is Llps to become, because there was a proposal where you know the Llp. 2325.
STFC-RAL-CR03 R61: So
STFC-RAL-CR03 R61: so I would. I would let you read this rather than you know, spoiling it for you in your own time.
STFC-RAL-CR03 R61: But moving on. What he covered on a serious note was
STFC-RAL-CR03 R61: how you can actually distinguish displaced photons in the collateral signatures. So mainly the photons coming from the long live particles, they take longer to reach the equal and do not point towards the primary vertex.
STFC-RAL-CR03 R61: So now, if they take longer, then there can be multiple ways in which you can have a timing detectors, or you can have some timing cuts on these photons. And that's how you would know that. Okay, these are the longer photons. There are some searches which have been done in access. And Cms about this, for example, one of those examples are here. This was the paper which was done, and then access didn't see any of that.
STFC-RAL-CR03 R61: and and he also in this. In this he he tried summarizing some of the issues which are there. When you have only the timing cuts, because one of the things is the final state. Photons are somewhat soft, and there's not probably too much missing energy. And one thing which can happen is that there can be these Pt cuts on that, and that would not cover
STFC-RAL-CR03 R61: certain soft photons, because you can only see greater than 27 Gb. In this particular result, which I just did, there was these cuts. But now these are being these cuts, I think, for level one of the next 1, 3, and so on. These cuts are a bit a bit lower, not not at 27, but I think below 10 or something.
STFC-RAL-CR03 R61: Somebody knows they can direct me here. But then there were also some of these proposed Llp. Experiments which are based at this international large Detector Ild.
STFC-RAL-CR03 R61: and there were some other talks which I'm not covering here now, coming to the
STFC-RAL-CR03 R61: coming to the overview talks from Ss. Cms. Lscv. And detectors also. For example, if you see in terms of energy you have the collider with, and you know the dedicated detectors which is in the forward physics, the Phaser models, I mean. Some of them are operational. Some of them are still in planning, and you know the fixed target and beam dumps these like any 64 ship.
STFC-RAL-CR03 R61: They are also upcoming from there, and then you have the Snd. Llc. And then the unit in us which avenues and it's not complete. So then, the majorly, you can divide all these different experiments in this. There were a lot of them
STFC-RAL-CR03 R61: 1st one. I think our Cp. Overview, because that was in the order of how it this was. In the timetable.
STFC-RAL-CR03 R61: Lscb, had.
STFC-RAL-CR03 R61: Mainly. These are some of the results which are already old, for example, 2022. So these are one run 2, 2 papers. There was nothing particular new, but there was this one such for residents, details to vote on payers. This is a new paper which it is still in the process, and some of the results for this work
STFC-RAL-CR03 R61: this would presented, which is mainly the size for resonance that came to the photon pairs of 2 photons.
STFC-RAL-CR03 R61: And this was some of the areas which Lstv is able to cover, in addition to what has been covered by our own access in in this fraud. And
STFC-RAL-CR03 R61: and here you have this regionals in comparison for the sensitivity from run 3, 2, and and the run 6. And what in the channels and in the v 1 channels. If you look at this image of how this can be. So there are strongest limits here by Lscb. For Elp. These are. This particular paper provides a stronger limits for the Lpd king. 2 2 programs.
STFC-RAL-CR03 R61: mainly in the region of 4.9 to 10 Gb.
STFC-RAL-CR03 R61: There are stronger limits by at just mainly for above 10 Gb. And
STFC-RAL-CR03 R61: and I think this is. And this is the about 10 Gb limit by address on this on this row on the right.
STFC-RAL-CR03 R61: Yeah.
STFC-RAL-CR03 R61: And then it was Cms
STFC-RAL-CR03 R61: Cms covered. There were a lot of other lp, Lscv. Talks mainly trigger and upgrade and sensitivities, and so on.
STFC-RAL-CR03 R61: Then you have Llps at Cms. There were, I think, 5 6 talks, at least 7 docs by Cms.
STFC-RAL-CR03 R61: And what they showed is that some of the the some of the results from 1,003, which are already out, and what they are doing for increasing Llp. Sensitivity for the and and 4,
STFC-RAL-CR03 R61: and and mainly the signatures which they are interested in. Their triggers are there. So he covered overdo of, for example, the software, there were some results which are already public population. There's nobody you have to monitor that email strategies.
STFC-RAL-CR03 R61: soft displaced vertices where you have the primary vertices. You have the displaced vertices, and then you have the panel States.
STFC-RAL-CR03 R61: And
STFC-RAL-CR03 R61: and there there were dedicated talks for each of them in but one of the ways in which, for the come upcoming
STFC-RAL-CR03 R61: upcoming run. What Cms is planning is, for example, if you remember, in 2018 Cms did a lot of the parking data set, and that is still being analyzed. So there was one particular paper which which he was highlighted in this, where they were looking for
STFC-RAL-CR03 R61: looking for I don't know what exactly they were looking for, motivated by the B 2 flavor anomalies.
STFC-RAL-CR03 R61: and but what they have now is, in addition to the be parking schemes. They have some additional teams, for example.
STFC-RAL-CR03 R61: dark towers in the re parking Mds. In the V parking. So they, the parking seats, have been optimized
STFC-RAL-CR03 R61: for the run 3 where you have
STFC-RAL-CR03 R61: dedicated Llp. Triggers, anomaly detection triggers. You have the scouting and parking data sets, and you have done the phase. 2 upgrade which will have the Mrp. Time, inspector, and you will have a much more sensitive level one triggered for this.
STFC-RAL-CR03 R61: So these are some of the New some of the Cms strategies in terms of Atlas, I think, in terms of the results. Atlas was the
STFC-RAL-CR03 R61: Oh, one which presented the latest results, and had the highest coverage. And so
STFC-RAL-CR03 R61: this is, I mean, how you know how Louis started. This talk is quite interesting. There was a historic renewal. So
STFC-RAL-CR03 R61: how? Basically says that at Lhc at the time of this, you know November revolution of Jf side.
STFC-RAL-CR03 R61: it was that the placement of placement of
STFC-RAL-CR03 R61: detectors was not there in the forward region at Lsc. Versus. These were there in the in the Fermilab and and and J. Lab
STFC-RAL-CR03 R61: and how? Because of that, just because, if let's see.
STFC-RAL-CR03 R61: our detectors were not right at the at the right right place compared to that, Lsc. Missed out on that, and that can be something which which
STFC-RAL-CR03 R61: where we can be careful, because at the moment our all majority of the searches have been historically prompt based signature searches. So we have to have
STFC-RAL-CR03 R61: the the. He showed the importance of the Lnp based
STFC-RAL-CR03 R61: based experiments and and and searches strategies.
STFC-RAL-CR03 R61: One thing which at this has done is that it has combined its exotic group with the sushi search group. And then, now, this is one of the biggest groups in that that's dedicated for the
STFC-RAL-CR03 R61: the exotics and Llps they also presented the 2 1st month researches with the Lsp. These are the 2 papers.
STFC-RAL-CR03 R61: One of the the things I mean
STFC-RAL-CR03 R61: is with Ralph is that it takes a lot of time to- to- to come up with the results. There are a lot of
STFC-RAL-CR03 R61: sensitivity papers, etc, etc. But when it comes to real data analysis papers it takes a lot of time. And then but at least what it basically says that look, we are already publishing paper with the run 3 with the Llp signature. So it's actually not good no longer the case.
STFC-RAL-CR03 R61: Now, if you look at the distribution.
STFC-RAL-CR03 R61: it's quite a lot of big distribution. And there was like
STFC-RAL-CR03 R61: 1, 2, 3, 4, 5, 6, 7 talks from Atlas, covering different areas. So here Gordon's talk and Julian stuff they were covering mainly
STFC-RAL-CR03 R61: how some of the statistical methods which can be used to reinterpret the already published papers. Can, you know, give you a new perspective? So this is what had covered, and there was promptly healthy interpretation talk by my recent
STFC-RAL-CR03 R61: and displays the overdx talks prompt in the- in the loop stocks.
STFC-RAL-CR03 R61: So.
STFC-RAL-CR03 R61: and with that, if you put together. Just, for example, here in the hidden sector, with the latest results in the from the February, these are the limits which Atlas is able to put.
STFC-RAL-CR03 R61: and if you combine it as in Cms together.
STFC-RAL-CR03 R61: This was this was a new plot which was shown, which is mainly building.
STFC-RAL-CR03 R61: Then you have now these dedicated detectors. That was Hscms. And covering. Then you have this model call and other exotic detectors at Lscb, this is called modal.
STFC-RAL-CR03 R61: This is
STFC-RAL-CR03 R61: This is still to come yet to come, but it is optimized for searching these magnet magnetic monopoles and other highly energizing particles with magnetic and electric charges.
STFC-RAL-CR03 R61: and it is
STFC-RAL-CR03 R61: expected to provide one reading, 1, 1 leading latest. On the production of this PIN one highlighted objects.
STFC-RAL-CR03 R61: and you will see this reference of headquarters and some other notes as well, which I have pointed.
STFC-RAL-CR03 R61: And there, you know the sensitivity in terms of where where model lies. With respect to all the other
STFC-RAL-CR03 R61: experience, I can't see it here.
STFC-RAL-CR03 R61: But yeah, this is a Mpp. This is the.
STFC-RAL-CR03 R61: This is a good one.
STFC-RAL-CR03 R61: And what you have here.
STFC-RAL-CR03 R61: That is the Anthony 64 experiment, which is already has taken some data and published some results.
STFC-RAL-CR03 R61: And this is also a fixed target where you have regions which are excluded.
STFC-RAL-CR03 R61: You can't.
STFC-RAL-CR03 R61: Okay, so and you have energy practice where there are
STFC-RAL-CR03 R61: dark masses, dark, dark mental masses versus the couplings where and the region which basically M. 64 is able to target is up to a Gev. So in the elevated Gev range, which basically Ms 64 can target.
STFC-RAL-CR03 R61: And above Gv, it is on the L. 3 right now.
STFC-RAL-CR03 R61: And what they can look is these different methods where you have the active dump, and then, after the dump, you have a detector where you can look at, for example, missing energy and momentum signatures, particles or missing, and or both.
STFC-RAL-CR03 R61: Yeah, and this is a, this is
STFC-RAL-CR03 R61: this is the setup of the 64
STFC-RAL-CR03 R61: and they are able to provide you some with their existing results, and Scc. 4 has able to exclude some of the areas when it comes to up to the Gdp mass range for the candidates.
STFC-RAL-CR03 R61: and
STFC-RAL-CR03 R61: in- in the summary of our summary and outlook you have the timeline, which is sort of well defined, and then you have in 64 e plus e minus and u, and
STFC-RAL-CR03 R61: and how what they expected to have in in the room 4. And this is where the thermal dark matter limits are in with respect to all the different ones. So
STFC-RAL-CR03 R61: you can see how they are going to perform here.
STFC-RAL-CR03 R61: or what they're expected to to deliver in in the next terms.
STFC-RAL-CR03 R61: Then you have this Smb. At at Lsc. Assignments. They also showed some recent results.
STFC-RAL-CR03 R61: This is scheduling neutrino detector at Lfc.
STFC-RAL-CR03 R61: And what they were able to
STFC-RAL-CR03 R61: where the the signature that they were looking was at the top. Here.
STFC-RAL-CR03 R61: on the top, on the top right.
STFC-RAL-CR03 R61: And the placement of the assembly is basically using this Fsdp collision and about 480 meters
STFC-RAL-CR03 R61: on the opposite side of the Phaser. So this is the power physics, facility here, and then you have the Smb on the other side, and this is where they can.
STFC-RAL-CR03 R61: This is where they have.
STFC-RAL-CR03 R61: This is the mainly what they will cover is the nutrients on the Lse. Large parts in the power region. There are unexplored energy regions in the 300 Gb. To 2 Ev ranges.
STFC-RAL-CR03 R61: and they are able to cover Eta from 7.2 to 8.4. And if you know Phaser, it is basically a Phaser for neutrinos eta is greater than 9.
STFC-RAL-CR03 R61: So they are, they are able to cover the areas which is quite unique.
STFC-RAL-CR03 R61: And they're now coming to Phaser.
STFC-RAL-CR03 R61: Phaser has some data already taken, and you can see the recorded of the of the Phaser. There are other iterations like Phaser 2. And so which are planned with the more sensitive adaptors here. So what happens is that it is also in the in the if you see this is the area. The address and it has to. It is about 480 meters away.
STFC-RAL-CR03 R61: And it. It. It overall is this part of the forward physics, facility.
STFC-RAL-CR03 R61: and what they are able to do with that is, for example, this paper from business photon searches, mainly providing the limits. Then you have the exam like particle searches. With that data set, you have dark photon results as well as
STFC-RAL-CR03 R61: as well as this is providing the limits. And actually, there are some of the leading limits for both of these.
STFC-RAL-CR03 R61: What they are going to do for the Phaser 2. Are. They are going to update the free shower detector here. And
STFC-RAL-CR03 R61: with that they would be able to cover much wider area. For example, here this Phaser, and then you have to black the Phaser, too.
STFC-RAL-CR03 R61: and
STFC-RAL-CR03 R61: and it's good to see. See when some of the plots which you generated are
STFC-RAL-CR03 R61: over led by the new product. For example, here the Lscp limits which were there was part of my thesis work. And then now those limits which we had done, they are continuing, and where people are presenting their sensitivities, and so on.
STFC-RAL-CR03 R61: And then there was this searches for displace. Scalar decays to time your services in 1 3 mainly.
STFC-RAL-CR03 R61: Here you have the Lcv
STFC-RAL-CR03 R61: T. Tracks. What would be the areas? This was the. This was done by Isaac. If you look at the Lsd. What is doing is trying to focus their Lfp. Such strategies based on these trackers which are outside. For example, this is the Sci-fi tracker which is after the magnet, and then so you can have the T tracks from that, or you can have the long sequence.
STFC-RAL-CR03 R61: And there was another talk about about the downstream, and then you have the monthly sala.
STFC-RAL-CR03 R61: which is also proposed to solve the challenges as well as the main detectors.
STFC-RAL-CR03 R61: And here you have the Cms. And then on the surface, you would have this detector at the Cms. At a certain angle
STFC-RAL-CR03 R61: one of the main challenges would be. They would have to have some way of shielding from the atmospheric particles which they are going to see. The primary physics case is electronically taking order of 10 to 100 Gb. Llps, and mainly, for example, in the Llp. Exotic Higgs searches.
STFC-RAL-CR03 R61: And and earlier, I think, they had the big plan of building a hundred by 100 meters. But now the plan is like to build a 40 by 40 meter detector. So maybe what happens is you have the Lhc coverage. Then you have the forward physics facilities which we saw fasal and
STFC-RAL-CR03 R61: and say 64. And then this in the transfer space. So, for example, this is not in the transverse link. You can have this like in the Ortisala.
STFC-RAL-CR03 R61: which are the proposed experiment at the Cms.
STFC-RAL-CR03 R61: And and yeah, these are some of the numbers which they expect.
STFC-RAL-CR03 R61: So for cosmic photons, cosmic neutrinos. What would be the kind of the background they would have to deal with
STFC-RAL-CR03 R61: then?
STFC-RAL-CR03 R61: Codex. BI mean, this is a proposed experiment, and these are some of some of the sensitivities. Mainly it is the in the transfer direction of the detector.
STFC-RAL-CR03 R61: and
STFC-RAL-CR03 R61: this is what the prototype looks like. They are still working on that. And probably it will be operational, I think.
STFC-RAL-CR03 R61: in, and they say that it would be taking data from other softwares this this year. Service onwards.
STFC-RAL-CR03 R61: Then you have this other list, where some of the people from Cambridge are involved in. And this was a talk which is exploring the project itself. You have a very well defined timeline from that from conception. If this is starting 2019, and then now you have
STFC-RAL-CR03 R61: some version of it already running. But in the planning, maybe, and with some prototypes already
STFC-RAL-CR03 R61: having some sort of data.
STFC-RAL-CR03 R61: and these are their sensitivities. Mainly. The region which I was able to cover is this, which is far beyond as compared to any other detector regions. But
STFC-RAL-CR03 R61: the L, if you see here the lse downstream this is something which which I worked on, and people are kind of not happy that we are able to show the sensitivity of Lsu downstream covering their detected region. So here you can see Lc, when you include the downstream as well
STFC-RAL-CR03 R61: in the triggers. How this is able to change the sensitivities the problem is obviously, I mean, we have to see what are the kind of backgrounds which we have to deal with, that so on and so forth.
STFC-RAL-CR03 R61: But at least when these sensitivities are projected, you assume 90% bigger efficiencies with 0 background.
STFC-RAL-CR03 R61: And that's basically true for all the other, all the proposed experiments. And that's not true. Usually you'll always have to deal with some kind of background, and so on.
STFC-RAL-CR03 R61: And
STFC-RAL-CR03 R61: so, yeah, I also presented some of the things I mean this. This has been already presented in this paper. but I I also was referring to them in my talk. Then you have the shift which is shifted interaction on a physics target.
STFC-RAL-CR03 R61: and this is for here what they are trying to do.
STFC-RAL-CR03 R61: If you have the Cms detector.
STFC-RAL-CR03 R61: Usually you try to build a detector at certain point
STFC-RAL-CR03 R61: away from the interaction point so that you can detect the longest particle here. They're trying to do the opposite. They're trying to shift the interaction point.
STFC-RAL-CR03 R61: So what they are doing is, they have shifted the interaction point by some distance
STFC-RAL-CR03 R61: and the program. It would be basically a fixed target, gaseous, fixed target detector here. So the program will hit that, and then there will be these cascades of longer particles which would fly and could be detected with the Cms detector. So this is the idea of the shifted interaction on a fixed target.
STFC-RAL-CR03 R61: They have done the technical feasibility, and they would be able to cover quite a lot of areas which are basically not done by this. For example, here, if you see this green, the shift. So this is entirely proposed to be by- by the shift
STFC-RAL-CR03 R61: experiment. Okay, I still have a lot of things to cover. And then so I will just try to quickly quickly increase my speed because has shifted jyoti indicated. There are 10 min left then you have this many collaboration where they are also building
STFC-RAL-CR03 R61: detector, which is above the Cms cable. This is a bigger but not all the way, and the surface you still have 70 meters of surface above it. So there's some idea which they are able to find in transfer direction which they will be able to do that they have always actually recorded. some of the data. It's in the operational.
STFC-RAL-CR03 R61: And they had put this detectors in 2023. And there are some college details with which they want to do physics? There were no
STFC-RAL-CR03 R61: they were given a result. Yeah, so this was the first.st Actually, I think this was the only result which was like.
STFC-RAL-CR03 R61: or for the 1st time presented
STFC-RAL-CR03 R61: anywhere at Llp. And so this is the this is the search which they take here for
STFC-RAL-CR03 R61: Hello!
STFC-RAL-CR03 R61: Oh.
STFC-RAL-CR03 R61: mainly, I mean, this is a model agnostic search. They are just looking at the regions of different masses. So there are these 2 different types of search regions. Sr. One and Sr. 2. And this particular paper was covering the search results for the Sr. One. And yeah, they didn't. There was some prediction, but they didn't see anything there, observation resistant with the background expected.
STFC-RAL-CR03 R61: And then you have, I mean, forward with physics, fragility mainly around the earth. And so here there are multiple detectors which are proposed here, for example, which would cover different physics areas, and it shows that you know it can. It shows the coverage of the hard physics, facility areas with dark matter, strong city problem, cosmology.
STFC-RAL-CR03 R61: We have genesis and hierarchy problems. And there are different types of detectors and experiment. For example, things are 2. This is a liquid. Rn. Dpc. For neutral detection.
STFC-RAL-CR03 R61: You have the Formosa plastic simulator, and there is phase 0 2,
STFC-RAL-CR03 R61: and these are the sensibilities for the same thing. Some of them are probably taken data some of them are going to take. So some of these plots on the on the Phaser, then you have the prototube.
STFC-RAL-CR03 R61: which is also at the at the Sbs at sign.
STFC-RAL-CR03 R61: And these are the physics cases which they are able to prove, and they are interested in in proving.
STFC-RAL-CR03 R61: And there were some proposals
STFC-RAL-CR03 R61: on what they will be able to cover. These are their sensitivity plots. And
STFC-RAL-CR03 R61: they say that they are going to be very sensitive especially given. How
STFC-RAL-CR03 R61: is the liquid liquidity? Pcs with this Mini beam dump
STFC-RAL-CR03 R61: would be operational in about, I think, 5 years.
STFC-RAL-CR03 R61: and these are the tickets which they are going to look at where we have the meeting room.
STFC-RAL-CR03 R61: 2 icons, 2 Neons, electron Neons and Bio, and so on.
STFC-RAL-CR03 R61: And there was this lux experiment which is based at Daisy. And it's a special experiment mainly based at this xfeel in Hamburg and
STFC-RAL-CR03 R61: this will collide Xfl electrons and bring strong photons with a high energy laser.
STFC-RAL-CR03 R61: And this is also it falls under the memorable of your party to have these teams and
STFC-RAL-CR03 R61: and the the seat arrange which they are able to cover is also.
STFC-RAL-CR03 R61: quite quite significant. And here you can see in this particular plot what are their coverage here? So you see this is the
STFC-RAL-CR03 R61: like, this region with this with this screen, this blue-blue line, the area which is mainly over lapping with other other proposition. So you have the green one, which is the lux phase one. This is phase 0 point 1.
STFC-RAL-CR03 R61: And and yeah.
STFC-RAL-CR03 R61: And then there were bigger schemes to their access Cms and Lscp
STFC-RAL-CR03 R61: presentation. Mainly it was shown that what all access has been doing and is how access is improving the Lp triggers for run 3. So you have the large ATM setting, disappearing track triggers displaced upon triggers. This space check triggers, emerging chat triggers.
STFC-RAL-CR03 R61: Tla, this trigger level analysis. It is displayed statistics and all of them there are these Llp signatures where these triggers are now incorporated.
STFC-RAL-CR03 R61: And there's going to be significant improvement, for example, with the
STFC-RAL-CR03 R61: With how it is planned. Then you had
STFC-RAL-CR03 R61: busca. This was a project which I had started when I was working in in epic with with my colleagues, and was presented by sorry, maladi. And then what you can see here is.
STFC-RAL-CR03 R61: oh, this is a way of doing a technical analysis equivalent to to to to
STFC-RAL-CR03 R61: access, and what we want is the to
STFC-RAL-CR03 R61: right at the level agenda itself, some of the the pass through lines which can be which are trained for Esm signatures irrespective. I mean, this shows that agenda, for example, irrespective of the Bsm with the downstream. How the standard model business cases can be covered, and with much more data. It shows that.
STFC-RAL-CR03 R61: And
STFC-RAL-CR03 R61: And some of this work was also put together in this report by Lscv for the physics potential for the Lscv upgrade, too. These are the plots which I was creating which I was referring to where we published this in the in this plot, and you can see the sensitivity of Lsc. Even downstream compared to the physics facilities.
STFC-RAL-CR03 R61: Now,
STFC-RAL-CR03 R61: mainly the next. This is this is so just if I don't know if you know. But we had made and waited to host the next slp at at
STFC-RAL-CR03 R61: at cause, nurse, but then we couldn't compete with Kevin Library because they had some of it there big as well, and obviously they are offering their
STFC-RAL-CR03 R61: their Harry Potter, or I don't know dining hall for the dinner and all those things. So it's not so easy to complete. But yeah, next year, next Llp. Meeting is going to
STFC-RAL-CR03 R61: you happen at the time this. Now, if if Jeff, you can give me 5 more minutes, 3 min, yeah, I would like to cover. What are the things which I covered. So one of the things which I wanted to cover was that everybody was basically.
STFC-RAL-CR03 R61: you know, everybody was all Gung ho on! Let's find the dark matter. And looking at the dark matter, candidates and signatures and different asynthetic scenarios, I wanted to cover some of the basis, for example, in the beginning, I mean, we always take this particular picture for granted.
STFC-RAL-CR03 R61: And but what I wanted to to show some of this skepticism in when we we take it like this. So I mean, this was my my slide. But what I want I said here, so you see, these equations here
STFC-RAL-CR03 R61: on on the right.
STFC-RAL-CR03 R61: today's cosmology is done using the set of equations called Friedman equations. And they were basically devised in 1922. And these Friedman equations are actually exact solutions for the Einstein sweeps equations
STFC-RAL-CR03 R61: under the condition that our universe is an absolutely symmetrical in the sense of it has all kinds of
STFC-RAL-CR03 R61: of cemeteries.
STFC-RAL-CR03 R61: If this was true, I mean we in in many senses. But then, over the time when we had developed our understanding.
STFC-RAL-CR03 R61: I mean, this is also. This is what gave the rise to this cosmological principle, that our universe is isotropic and homogeneous, and it has a perfect symmetry of time. And also not only has a space time symmetry, but also the translation symmetry, that is, basically, there's no beginning and no end. But then, when the Cmb came, this was basically has to be abandoned. And then we know that there's a beginning of our universe. One of the 1st
STFC-RAL-CR03 R61: 1st results. Empirical evidence for dark energy came from this particular product.
STFC-RAL-CR03 R61: And if you go look at this plot
STFC-RAL-CR03 R61: I don't have a time to cover all the details here. But just to basically mention here is that there are groups of people.
STFC-RAL-CR03 R61: So what is exactly his luck. Energy is.
STFC-RAL-CR03 R61: If you look at this product. This was done with the 50 data of the 50 supernovae type, one a supernovae. And then you see these these points, which basically, they are all falling under this line, which is lambda, is equal to 0 point 5 0 point 5. And they are not basically falling under the this line, which is lambda is equal to 1 0. Omega, M. Omega lambda is equal to 1 0. So what does it mean is because they are not following in this line. If this would have been the case.
STFC-RAL-CR03 R61: there would not be a problem.
STFC-RAL-CR03 R61: But this would be that refers to your universe. But here it, since they are falling under this line. That means this is what exactly shows that. Okay, we have this much percentage of documents. And this, what it showed was that we have
STFC-RAL-CR03 R61: universe which is expanding. And in order to explain that we have to come with the sponsor of the dark energy. Now for various regions in the cosmology community they are revisiting this. They are redoing this analysis with much more data, with much more, much more supernovae
STFC-RAL-CR03 R61: superdobi data, and so on. And they are able to challenge some of the problems which were there in this particular analysis. So there's ongoing conversation going on. There was this Royal Society meeting, and after that meeting last year they had issued this manifesto, where all the different views about this was discussed and presented. So
STFC-RAL-CR03 R61: the some of the foundational things which were basically have been assumed for doing some of these cosmology based, analysis and assumptions are questioned. And I wanted to let the community know that maybe we should also keep intact of this. And because analysis which point to this. For example. You see, there are
STFC-RAL-CR03 R61: details I I don't want. I don't have time to cover, but I encourage you to look at through these slides.
STFC-RAL-CR03 R61: but that was dark energy. How about dark matter and dark matter? You know you have much more evidence. You have the galaxy rotation pulse, which was the main evidence for the dark energy, dark matter. And then you have the Cmb. The perfect distribution of the the Planck data set, and you have seen the bullet clusters and presentational lensing, etc, etc.
STFC-RAL-CR03 R61: and and-. And if you see here that you know, the document is still quite, quite popular, and you see, in terms of the complication, is much more to see has gone down in the last decade.
STFC-RAL-CR03 R61: And this is the situation, however.
STFC-RAL-CR03 R61: We have this thing, that
STFC-RAL-CR03 R61: on the left you can see this wonderful interplay of these models which are trying to describe the dark matter, and we saw some of these can have lp-based natures, and they are all waiting to be verified by the physics. All these evidences which are coming are from the from the astrophysics, astron astronomy.
STFC-RAL-CR03 R61: experiments, and not and nothing from the collider yet.
STFC-RAL-CR03 R61: But then
STFC-RAL-CR03 R61: we also know that there is this 5 Sigma Howard tension wherein we have early universe determination from plan Cmv data, which basically puts the value of the Howard called constant at 67.4 versus
STFC-RAL-CR03 R61: which is disagreeing sharply with this late time measurements from the super movie data which puts it at 73.4. So this is a 5 Sigma difference in service engine. And now
STFC-RAL-CR03 R61: this can have the serious implications on the whole dark sector physics and community knows this. So they are basically also
STFC-RAL-CR03 R61: also going through that through alleviating that
STFC-RAL-CR03 R61: another thing for the dark energy is
STFC-RAL-CR03 R61: part. So sorry. Yeah. The mental part was these papers. And I'm by using the Gaia tool data.
STFC-RAL-CR03 R61: And this is quite interesting. Paper, where you can see
STFC-RAL-CR03 R61: what they are doing is what they are able to do and in touch with one of the the authors who- who had agreed to
STFC-RAL-CR03 R61: come here sometime in the future to give a seminar. But what they did. This Uk is A is A is a is a European space satellite for observing our Milky Way and all the all the things in the Milky Way. What it is able to
STFC-RAL-CR03 R61: what they do is usually they publish these data sets for the public. So then, with the Dr. 2 data set as well as the Dr. 3 data set. What they did was.
STFC-RAL-CR03 R61: so you know, the 1st evidence came from the like, 10 min per question. Okay? Yeah. So then you, you know, you have the
STFC-RAL-CR03 R61: you have the Bg model which is basically ballistic model. And then you have the Milky way with
STFC-RAL-CR03 R61: with dark matter or without dark matter. So in this line, so what they are able to show in this particular area
STFC-RAL-CR03 R61: that if you do the if you do the if you basically
STFC-RAL-CR03 R61: you don't need. So in this paper, they are simply saying that, okay, you don't no need for the extra method to account for this kind of metrics. But what basically they did was this,
STFC-RAL-CR03 R61: this is the. This is the thing so so mainly what they are able to do is
STFC-RAL-CR03 R61: that there are certain Newtonian assumptions which have been taken in the in the original galaxy rotation curves, modules, and if you basically do it properly with the Einstein general relativity, you can account for that matter. So which is kind of serious. And
STFC-RAL-CR03 R61: but since any, I didn't write any of those I'm not author of any of those paper I'm just pointing out. So these were some of the some of the some of the challenges which was basically, which are there in the cosmology. People know that. And I I
STFC-RAL-CR03 R61: just highlighted it. And then I was covering some of the some of the
STFC-RAL-CR03 R61: existing constraints on the dark matter from mainly from one particular model, which which is Fpvdm, and how this is a over constrained model, and how
STFC-RAL-CR03 R61: some of the some of the some of the measurables there can be oh.
STFC-RAL-CR03 R61: can can help in in solving this documentary puzzle.
STFC-RAL-CR03 R61: Then this was somewhat. I'll just leave it to you. I've run over time to explain it. Then I I some of the challenges which I had is one of the major challenges for Llp. Space, such as other team guest backgrounds, and what would be their effect?
STFC-RAL-CR03 R61: And then this is how
STFC-RAL-CR03 R61: how different experiments! Look at what kind of signatures, and so on. But one of the things was that is it possible to to, because, being in the Llp. Community, is it possible to have
STFC-RAL-CR03 R61: oh.
STFC-RAL-CR03 R61: of a joint analysis by different experiments, like Fs and Cms, and so on, like the same way it was done for the review, and Cms. And Lsc. Did a joint analysis for some of the signatures, and then I also pointed out this at 17, and I believe, and
STFC-RAL-CR03 R61: and how this x 17 proposed kinetic, kinetic mixing with the standard model proton is a common product. Photons which can be long lived if the kinetic mixing is sufficiently small. On the day of the presentation, just few hours before there was. This was the result which had come out, and this was for the community to us to know
STFC-RAL-CR03 R61: if they are aware of that. And that's it. Thank you. Sorry for over my time happy to take questions.