STFC-RAL-CR03: So I've been trying to get a little bit.
STFC-RAL-CR03: This is obviously quite a large topic. So I'm I'm trying to pick out a few trying, you know.
STFC-RAL-CR03: absolutely.
STFC-RAL-CR03: I don't know.
STFC-RAL-CR03: We needed to. To explain the
STFC-RAL-CR03: we could look at the
STFC-RAL-CR03: and we can. Also, we have pretty great deep depths of knowledge of my great background.
STFC-RAL-CR03: So there's a wide range of evidence for the existence of a bit of that. Oh, yeah, we know.
STFC-RAL-CR03: Well.
STFC-RAL-CR03: that's one sorry guns for for this model.
STFC-RAL-CR03: What do we know about it? We know it's
STFC-RAL-CR03: lots of sentence for that. We don't stop dialing means it doesn't interact with romantically. We got to logically stable
STFC-RAL-CR03: to exist now. And in order to make the cosmological models work, we need to have that kind of literature with that model.
STFC-RAL-CR03: this
STFC-RAL-CR03: perspective. But something lobbyists
STFC-RAL-CR03: very well, indirectly.
STFC-RAL-CR03: When we're doing this equilibrium.
STFC-RAL-CR03: there are a number of other
STFC-RAL-CR03: and this generates a large number of candidates. We have things like things like photons. We have things like Axon, our maximum, like particles we have sectors.
STFC-RAL-CR03: hospitals are there fairly wide range of these. So the the trick really is to get a feel that
STFC-RAL-CR03: what possible signatures? And it's funny.
STFC-RAL-CR03: alright. So what
STFC-RAL-CR03: assumptions do we have to make? We have to assume that what matter interacts on potentially
STFC-RAL-CR03: have some such it attracts.
STFC-RAL-CR03: I don't know. We need this. It'll produce it at providers.
STFC-RAL-CR03: And if you're thinking of.
STFC-RAL-CR03: and with those assumptions we have really some very nice help vanity.
STFC-RAL-CR03: So this is the famous kind of interaction. We have a set of different ways of looking at this, these interactions where we have 2 domestic particles interacting and generating pivots for an interaction with 2.
STFC-RAL-CR03: But there is actually we can look for beautiful detectors like like this, one said. And we look for dynamic scattering of a nucleus.
STFC-RAL-CR03: And we look for the requirement for some model type rules. We can.
STFC-RAL-CR03: So these are, if you like, different ways for the the diagram.
STFC-RAL-CR03: We're looking for the same direction.
STFC-RAL-CR03: but doesn't really tell us, though, what greater signatures we need to search for?
STFC-RAL-CR03: Just a quick note. I'm showing my age here finding new.
STFC-RAL-CR03: This is an example of what we know about
STFC-RAL-CR03: this was all. all of the Mac, the possible masses that he's gonna have. And this is what you can see. We expect to have ruled out a lot of space we have. But there's still
STFC-RAL-CR03: 250.
STFC-RAL-CR03: Okay, you know how this approach, how how this story involved. The point I'm trying to make here is this is the most constrained, best known scenario you can have. You know everything, everything about it, except it's fast.
STFC-RAL-CR03: and even that is not not a straightforward thing to find
STFC-RAL-CR03: alright. So what do we do to to
STFC-RAL-CR03: to probe this with brightness
STFC-RAL-CR03: we have
STFC-RAL-CR03: has the great advantage of allowing the characterization of the however.
STFC-RAL-CR03: we need a model to go to go charge. We're not in
STFC-RAL-CR03: be effective field their direction where
STFC-RAL-CR03: it doesn't matter what's in here, because
STFC-RAL-CR03: what happens in the middle equipment.
STFC-RAL-CR03: So unfortunately, we we have the great advantage that we're sensitive to the actual interactions of the dark matter. Oh, yeah, the disadvantage that as a result, what we see depends on that.
STFC-RAL-CR03: Alright. We assume that we have produced directing. If I just reduce to a nothing happened at all. And this is many of you in the room, and certainly John knows. This is a great challenge. So.
STFC-RAL-CR03: but that was just
STFC-RAL-CR03: visible, which is
STFC-RAL-CR03: what happens when? What happens if the event doesn't bounce. We know that the initial set is
STFC-RAL-CR03: this is is not something that is particularly out of the ordinary. It's something that we can do
STFC-RAL-CR03: alright.
STFC-RAL-CR03: Think I probably represent this. Yes, this this part, this contract, this particle that interacts in the middle we call mediator. So we have.
STFC-RAL-CR03: We have a complementary approach we have we can look for. We can look either, for
STFC-RAL-CR03: this particle itself is created in the collisions that closer to came back to the same particles, or it can be entered on split signatures with matter and messages from just what immediately itself.
STFC-RAL-CR03: and this is very much a signature driven set of set searches. So we're really looking to explore possible signatures.
STFC-RAL-CR03: Stop and go back again briefly, to to summarize this. So
STFC-RAL-CR03: we assume that it doesn't matter to produce.
STFC-RAL-CR03: The client starts to interact weekly. Ambassador Elizabeth. Plaintiffs.
STFC-RAL-CR03: We have to infer this one. But after work we need visible radiation to tag the fact that there is no matter in the event, the consequently tending at least the initial kind of searches focus on production. Sun
STFC-RAL-CR03: office. Thank you.
STFC-RAL-CR03: So imagine mediators themselves
STFC-RAL-CR03: appropriate these models.
STFC-RAL-CR03: disadvantages. Everything depends.
Alright. We have.
STFC-RAL-CR03: We have an option model where the mediates of popular debates don't matter.
STFC-RAL-CR03: And then we had additional jets almost first, then we have other ones where there's additional additional associated particles, really with that
STFC-RAL-CR03: something more complicated.
STFC-RAL-CR03: But this is a slightly personal perspective. I think what makes a good, simplified, or concrete dynamic model is
STFC-RAL-CR03: it's important because compelling
STFC-RAL-CR03: signatures.
STFC-RAL-CR03: So we're not really interested in that yet another model, because it's exactly the same
STFC-RAL-CR03: and then there are some
STFC-RAL-CR03: prompt prompt product, prompt searches.
STFC-RAL-CR03: Oh. so this is Tim's diagram with the set of bottles we use. As I said, we're not in the effective field, very regime energy too hard for this, and we have a set of simplified bottles
STFC-RAL-CR03: which we use to kind of guide. What, what, what might be, what attractions might be happening. and sometimes we, we
STFC-RAL-CR03: step a little bit more towards the brief model where sometimes we need the gauge of variance and completion. Which?
STFC-RAL-CR03: Okay.
STFC-RAL-CR03: what are we used to actually explore these models?
STFC-RAL-CR03: We have
STFC-RAL-CR03: from 3 started last summer.
STFC-RAL-CR03: So
STFC-RAL-CR03: rain last year this year's running
STFC-RAL-CR03: alright. Let's start by talking about one of the most generic and powerful searches, and setting up some of the sketches of how this works.
STFC-RAL-CR03: The second. so
STFC-RAL-CR03: the simplest kind of media, the simplest kind of model we can have is is something simple like this. We have some. but it's created.
STFC-RAL-CR03: And this is as
STFC-RAL-CR03: one a jet
STFC-RAL-CR03: and the other thing that can happen here. If I'm generating
STFC-RAL-CR03: and essentially go back into this.
STFC-RAL-CR03: So
STFC-RAL-CR03: I know my, I'm really using the phone cartoons.
STFC-RAL-CR03: We have things with our sector, and the dark sector will have. A dark map, a dark matter particle but we don't know it's we don't so
STFC-RAL-CR03: And there will be some mediator tracks
STFC-RAL-CR03: we use since this is the
STFC-RAL-CR03: been overseas.
STFC-RAL-CR03: Alright. So this is a very, very general search. How do we do it? We look for an energetic jet. That's the thing. We look for large eating, this few things.
STFC-RAL-CR03: and largely, we just
STFC-RAL-CR03: search for an excess in the number of events.
STFC-RAL-CR03: with a large recipe, too distribution.
STFC-RAL-CR03: and you can see that what we're looking for looks like an access. but distribution, but also for the highest, the highest
STFC-RAL-CR03: we know some of the backgrounds, for these are that things like jets where we
STFC-RAL-CR03: W. Goes to a machine with a laptop. It's a laptop or particular, these atmospheres. But it's that first 2 genes end up with
STFC-RAL-CR03: pretty much exactly this diagram, except this thing is that
STFC-RAL-CR03: and the thing the thing I wanted to notice. Obviously, we, we can
STFC-RAL-CR03: predictions for that point. And across this situation we get more seats with this type of information.
STFC-RAL-CR03: Okay, very quickly. There are a couple of ways to. Briefly,
STFC-RAL-CR03: there are 2 main ways we use for the and you can see, basically
STFC-RAL-CR03: can easily. And so this is where the this model gets such.
STFC-RAL-CR03: and the other thing we can do is is
STFC-RAL-CR03: fix the and then we can look at how how strong
STFC-RAL-CR03: this is a particularly particularly useful
STFC-RAL-CR03: sensitive to T channel models. It's also sensitive to things like Suzie to have to call structured connections. There's a way for it to.
STFC-RAL-CR03: Okay.
STFC-RAL-CR03: I said that the complement, please is searches for the Reddit for the meetings themselves. These were my budget searches I can generate.
STFC-RAL-CR03: So if I
STFC-RAL-CR03: I look at all of my 2 jets and I'm looking for a resident distribution and the massive needed, that's the
STFC-RAL-CR03: you can see here. This is
STFC-RAL-CR03: question on top of this, for example, spot
STFC-RAL-CR03: for what we find look like.
STFC-RAL-CR03: So there's no
STFC-RAL-CR03: on the Internet by that system. the other thing that in principle could happen here is that these could go to electrons
STFC-RAL-CR03: as well. Now that also, which is very clean and very convenient to plug this. So we can.
STFC-RAL-CR03: which has
STFC-RAL-CR03: usually these become very sensitive if they're allowed. It's often so often there is something not to have
STFC-RAL-CR03: for for late
STFC-RAL-CR03: by passwords ahead of me. So.
STFC-RAL-CR03: but that's range.
STFC-RAL-CR03: Alright! There were a few ways of looking at how the mediator searches. Do. So this is what one of our we have again, here we have the media to mass on the
STFC-RAL-CR03: okay. Sorry guys.
STFC-RAL-CR03: And you can see that we're the lower lower is what we're doing best, which is around here
STFC-RAL-CR03: every second
STFC-RAL-CR03: and so we need clever, clever techniques like trigger.
STFC-RAL-CR03: And then this is the component of their publisher. Where here we have monitor. So it's ruling out space, whatever
STFC-RAL-CR03: wherever we're willing to slime and be
STFC-RAL-CR03: the mediator.
STFC-RAL-CR03: Alright, just a quick note about zoom models. we can consider as well as what the the
STFC-RAL-CR03: so one particle. We also have models for for zoom editors. These have more hidden pigs like couplings. This is their pig-like couplings. This means that we tend to get signatures with with heavy books, and so we get some just like
STFC-RAL-CR03: when we put this, this is the.
STFC-RAL-CR03: This is the
STFC-RAL-CR03: baseline
STFC-RAL-CR03: rolling out. We can roll out over time
STFC-RAL-CR03: constraining.
STFC-RAL-CR03: We can also play games or try and prepare. How we're doing, how to make this comparison.
STFC-RAL-CR03: the point I want to make here is that we largely insensitive, for that matter, fast right. I have some articles to this case to that matter, but I have to run this up through the page, but this really make a big difference
STFC-RAL-CR03: to us whether or not you know there is
STFC-RAL-CR03: that that's largely why the
STFC-RAL-CR03: the constraints that come out
STFC-RAL-CR03: If I made for a couple of things much, much change hugely.
STFC-RAL-CR03: so the
STFC-RAL-CR03: if I insist on the so last time you started system, you danger, it's it's a
STFC-RAL-CR03: is a ratio, a ratio.
STFC-RAL-CR03: Alright. I'm I'm gonna move on from that. And the physics follow books.
STFC-RAL-CR03: Yeah, the one place
STFC-RAL-CR03: but
STFC-RAL-CR03: the settings itself, which shows both the same problem.
STFC-RAL-CR03: Not sure. We only have.
STFC-RAL-CR03: And again, we don't know
STFC-RAL-CR03: and if this happens.
STFC-RAL-CR03: this would happen a lot more.
STFC-RAL-CR03: So so
STFC-RAL-CR03: and so we get, we get the sound. It sounded, you know, fusion
STFC-RAL-CR03: process.
STFC-RAL-CR03: We'll just use this.
STFC-RAL-CR03: And so what can we do if we're going to look for these. Well,
STFC-RAL-CR03: This is now
STFC-RAL-CR03: we're already
STFC-RAL-CR03: on the potential forks, behaving to that market.
STFC-RAL-CR03: probably like something
STFC-RAL-CR03: one
STFC-RAL-CR03: breathe aside.
STFC-RAL-CR03: This is also a good signature models in which the
STFC-RAL-CR03: exposure. So these are holes where
STFC-RAL-CR03: exactly the same way
STFC-RAL-CR03: what we get is
STFC-RAL-CR03: goes on with production. I think such is a different
STFC-RAL-CR03: transition constraints from the fiscal.
STFC-RAL-CR03: this business training. And he's
STFC-RAL-CR03: okay. I'm gonna talk very briefly in the. And third, about one slightly more complete model that we've been exploring which we found because
STFC-RAL-CR03: the kind of extension of the spin 0 model, I think earlier, that model was
STFC-RAL-CR03: turns out that
STFC-RAL-CR03: if it's not complete, you end up with a lot of.
STFC-RAL-CR03: So I'm talking about before we the same tuition.
STFC-RAL-CR03: But this is, if you like.
STFC-RAL-CR03: another way of getting some, of finding something as well matter that doesn't doesn't change properly.
STFC-RAL-CR03: Looking at.
STFC-RAL-CR03: how do they interact? They're a very natural place to look for also look for different unexpected behavior from the appropriate Southern model express.
STFC-RAL-CR03: so here there's a
STFC-RAL-CR03: so as well as the second one, this 5 big States. So we have some model big states, and we have a heavy, heavy scalar receiver and 2 charge pigs.
STFC-RAL-CR03: Then there's an additional 2 to the standard portal to to domestic.
STFC-RAL-CR03: This
STFC-RAL-CR03: For if the heavy we have to look either to this this project.
STFC-RAL-CR03: and if it's light, then we have
STFC-RAL-CR03: usually we look for production, this thing that decays on that. Again, we have the.
STFC-RAL-CR03: We have things like heavy hits, particles beginning to
STFC-RAL-CR03: so heavy quotes.
STFC-RAL-CR03: We have what I will talk about in a minute, which is
STFC-RAL-CR03: alright. So I'm gonna focus very briefly on one concrete example, which is the expert missing research.
STFC-RAL-CR03: I want to look for hints, business in et
STFC-RAL-CR03: the brooch diagrams look something like this.
STFC-RAL-CR03: heavy pigs.
STFC-RAL-CR03: or you can also get
STFC-RAL-CR03: But you can also get what we call the associate approach, like the original beef books, in fact.
STFC-RAL-CR03: And this is sensitive to dial.
STFC-RAL-CR03: Like to do a reasonable. What about you sorry
STFC-RAL-CR03: once you have the this is allowed.
STFC-RAL-CR03: so we have
STFC-RAL-CR03: set of different single regions. We look for
STFC-RAL-CR03: 2 bees plus. I see we look for 3 bees plus this Ets was an additional beatbox official site there.
STFC-RAL-CR03: When we have 2 scenarios. If the
STFC-RAL-CR03: the example of the event where the 2 mixes are very close together. We have this large
STFC-RAL-CR03: kind of the same protection.
STFC-RAL-CR03: We know how to look at these. We
STFC-RAL-CR03: we looked for events with to be.
STFC-RAL-CR03: It's Max
STFC-RAL-CR03: similarly, in your solve channel. And so if we look for this, if we look for this signature and a bunch of certain number of different
STFC-RAL-CR03: one. And once you've done that you can then track our paper searches. This is this is a plain way of
STFC-RAL-CR03: the lights are just kind of. and the heavy hits on this axis.
STFC-RAL-CR03: If I look when my my ducking, when my monitoring signatures, like particularly the Bb, search that I just talked about.
STFC-RAL-CR03: Rules have to large chunk of this space right anyway. But this, this mountain enough, larger than this master this is.
STFC-RAL-CR03: But this is not a process.
STFC-RAL-CR03: I think it too close to this line, and there isn't enough. This isn't heavy enough to produce
STFC-RAL-CR03: and I can. Also, if I look at other channels, I can get a big closer. But you also include the channel where I have it set going. So it's this spread from here doesn't go out to store in
STFC-RAL-CR03: and I can also look at things like logics, such as
STFC-RAL-CR03: that's a good shoot. very strong.
STFC-RAL-CR03: But the other thing that I wanted to introduce me
STFC-RAL-CR03: bends
STFC-RAL-CR03: in the scenario folks is that this A is mediator can be very wide, and if the mediator is like.
STFC-RAL-CR03: then we can get to the point where we need to communicate again to don't matter.
STFC-RAL-CR03: So this is if I
STFC-RAL-CR03: this blue line.
STFC-RAL-CR03: then we get
STFC-RAL-CR03: all of the mediators indicated that matter on this side. They can't absolutely can't do that.
STFC-RAL-CR03: And so
STFC-RAL-CR03: this is the sensitivity of the search and tensions across the room, across, search the exit.
STFC-RAL-CR03: These are all these, these curves here the invisible searches. They do very, very well at constraining.
STFC-RAL-CR03: looking for
STFC-RAL-CR03: that's hard research.
STFC-RAL-CR03: And finally, I just mentioned very briefly that if the 50
STFC-RAL-CR03: if we again, if if this we it was much lighter, and what what will happen is unusual
STFC-RAL-CR03: set of different searches for the
STFC-RAL-CR03: several options.
STFC-RAL-CR03: We'll touch very briefly.
STFC-RAL-CR03: we also have a problem with
STFC-RAL-CR03: it's handy.
STFC-RAL-CR03: Perfect.
STFC-RAL-CR03: Yes. speech becomes
STFC-RAL-CR03: the solution. It's part of me so
STFC-RAL-CR03: alright. Finally, I should talk a little bit about that.
STFC-RAL-CR03: So this the idea here is. There's some, some hidden and then the
STFC-RAL-CR03: usually this is done by having some additional
STFC-RAL-CR03: very common.
STFC-RAL-CR03: but it will be interacting light on that moment.
STFC-RAL-CR03: I know this is
STFC-RAL-CR03: so.
STFC-RAL-CR03: One of the questions we've been asking.
STFC-RAL-CR03: These are a little bit second, there are 2,
STFC-RAL-CR03: and we have some kind of invisible, purely frank, pharmaceutical fraction of this.
STFC-RAL-CR03: This makes this makes really
STFC-RAL-CR03: So if I if I kind of kind of put this into one cartoon brilliantly. This is something like we have some hats, and between high mass mediator and then the dark sector. There's loads of states, and some
STFC-RAL-CR03: it's a social operator in a public to month.
STFC-RAL-CR03: We've just recently gonna search for exactly
STFC-RAL-CR03: the objectives here. We're basically looking for
STFC-RAL-CR03: background.
STFC-RAL-CR03: There's no significant
STFC-RAL-CR03: jets with some energy.
STFC-RAL-CR03: So you can play games with ferrals like Pikachu
STFC-RAL-CR03: of.
STFC-RAL-CR03: And so you can forget inside of selections of these 2,
STFC-RAL-CR03: fixing the background more than you.
STFC-RAL-CR03: How much
STFC-RAL-CR03: I have this image with almost everything.
STFC-RAL-CR03: I have this signature of almost everything going with Gates absolutely a soft jack of optimistic tape into the modern house, such as
STFC-RAL-CR03: maybe to something else. We'll talk about it but briefly.
STFC-RAL-CR03: So this doesn't scan very well.
STFC-RAL-CR03: you can also get on the
STFC-RAL-CR03: so visible. You can also get
STFC-RAL-CR03: quite a difficult signature, but one of them experts, and if the
STFC-RAL-CR03: particles decay going further before the end, you know, for space German, but the jet appearing, and such in some layers into the
STFC-RAL-CR03: okay. And then finally, a note that.
STFC-RAL-CR03: trying to find a nice way.
STFC-RAL-CR03: and I'll put on the interpretation. So
STFC-RAL-CR03: again, we're looking for mass on this axis
STFC-RAL-CR03: sites. So
STFC-RAL-CR03: at the top of these.
STFC-RAL-CR03: at the top of these States. Everything is getting promptly, and we have explicit searches for these a bit lower. Once we get to smaller couplings, and these days start to be displaced.
STFC-RAL-CR03: So you can put these different things together to try and make sure you
STFC-RAL-CR03: alright. I should wrap up hopefully other options, background signatures.
STFC-RAL-CR03: and finally.
STFC-RAL-CR03: we did a huge amount to work with around 2 data set, which is very powerful. widely.
STFC-RAL-CR03: And finally, to note that.
STFC-RAL-CR03: thank you how
STFC-RAL-CR03: other questions.