Then I started.
ugm: Alright, so thanks for the invitation and I will hopefully give you some new insights into the neutrons electromagnet structure in this talk so my.
ugm: Talk is organized as follows, I give a few introductory remarks, and then I discussed, yes, very good framework and alliances research and disperse relations and the.
ugm: Central object of dispersion relations as a metric partners of spectral function which will be discussed, because there's lots of physics in them.
ugm: And then I briefly discuss how we fit to data and pinned on Australia uncertainties find your show results for space in time, like different form factors and also comment on this protein raiders controversy which has been reaching for some time now.
ugm: So look lauren's, of course, our basic objects of juicy D in the strong coupling regime and your nose that various prob see different scales or festered so the typical and electromagnetic scale of zero point 85 for me, of course, he had you have to be.
ugm: We have to differentiate new electric magnetic radio and protons and neutrons but typical size.
ugm: If you see a nuclear and visit and XL pro However, you know that the axelrod uses point 65 for me so.
ugm: This is very appropriate Pen, but what he wanted when this talk, you want to learn more about the form factors of the nuclear and the corresponding sizes as to choose from these form factors.
ugm: Now the theoretical framework is not very new but it's outlined in this recent detail by younger Linda poster kid born hands when i'm often drawn to myself, all the details are given.
ugm: So let me first define this form factors So what we are looking at up matrix element of the electromagnetic vector current between nucleus states.
ugm: Where we have some ISIS been index either scale as a vector which are just some some difference of the proton and neutron.
ugm: And of course there's a formal mentoring transfer, which is P prime minus P squared and for space like form factors, this is negative, so when resistance minus two Square.
ugm: And then all the non trivial structure or snoop lowness given in terms of to form factors which depend on momentum transfer the so called direct form factor and the party form factor.
ugm: These are normalized to the chargers and to the anomalous magnetic moments and, of course, often one uses the so called zacks form factors electric one is this combination of a fundamental to the magnetic one is another combination.
ugm: Once a nuclear and radio, which will come up later in more detail is usually given by the tail expansion or the form factor, or to zero so.
ugm: F of teams F of 01 plus to ask for over six plus I oughta terms, of course, this is different for the neutron child for phone factor, because they are we have zero here.
ugm: know why should we look at dispersion relations.
ugm: For the new current form factors, first of all it's a model independent approach it incorporates important non pejorative physics and it's a tool to analyze the data.
ugm: it's based on very fundamental principles never unity our city and also connects data from small to large momentum transfer and also time and space like data, which makes it very unique.
ugm: It is always important that we similar Tennessee analyze all for electromagnetic form factors.
ugm: So the proton electric magnetic as the neutron natick magnetic one.
ugm: Now suspected functions of it is causing code pejorative in month over the physics, in terms of victims and conflicts mortimer's on continue on the Python cloud, and so on.
ugm: And I can also use this framework does not want discussing this talk, but you can also use this framework to get information on strangers strangers vector currency code dynamics and strange matrix elements in particular Troy you can stick Napoleon MIT really I.
ugm: So here's the underlying dispersion relations, so the form factors of cuts in the interviewer from tn, this is a threshold.
ugm: Number of treasures from working on exchanges up to infinity has shown here so time like creation space like region so cutters real access, they can write on your specialization for any of these form factors.
ugm: In terms of spectral function, which is is maturing part of the form factor that's called spectral functions as simple object and heavy right on.
ugm: And subtract the special relation This is proven only and perturbations theory but.
ugm: By can also represent subtracted ones, but it can be shown that you don't get any symbolizes We have done this year and one, and so we will stick to his answer, practical versions and see spectral functions themselves.
ugm: Have cuts which are multi Muslim continue and poets, which I vector marathons, and so we will see there's an intimate relation between these in certain cases.
ugm: So let's look more general more generally, and the spectral function which goes back to old work of the 1950s, so we go into the Cross channel be couple knows a photon.
ugm: From the victim to this new Community group room pair and look at the metrics part which is the metric part of the spectral function here being sort.
ugm: of total set of intermediate state is ushered states, as shown here say generates the metrics report, and these are physically accessible.
ugm: As you will see, and so, then we have ISIS kayla states so that's three by five by cake evocative of pie, and so on, and Poles.
ugm: And for ISIS Gala the corresponding threshold is a teaser nine empire squared times mass and either Victor damages says two pi four times by and so on imports and here's the last question is.
ugm: For empires credit they chose whites and for the series very important ones is ISIS been basis.
ugm: Because the the treasure is a different for the eyes are victims, he has a scale of one, yes, it will see you in the next transparency, some of these points which appear generated from the appropriate continue.
ugm: So now let's look at the eyes of Victor spectral function, which has been first discussed in this famous work by phrase on frequency late 1950s and then.
ugm: Also used a lot by hello, Peter in and company from the calls, who has an equal the 1970s, who was the first to systematically who's dispersion relation to look at the form factors.
ugm: So, in fact, it can be shown that the exact to pine continuum is known from the tissues up to manjhi the square roughly.
ugm: And you can ride see metric part of the form factors as some faith based factor times the pie and vector forefinger which is more efficiently and times of PVC.
ugm: pipe nuclear partial basis teacher that you can get from dispersion relations, we did some research China to associate can talk to high precision from the data.
ugm: And when you put this together you'll see that you get here the whirlpool so this whole was predicted in fact by for verizon for causes of no value.
ugm: But on the Left shoulder of solar you see the strong enhancement and this strong enhancement, which goes much beyond the hallway resonance this is.
ugm: understood by the singularity on the second human she didn't fly into pi N, which industries this amplitude and this singularity sits at this.
ugm: Value foreign price for minors and fighters the force of a nuclear must be a 3.98 empires close it's very close to the threshold and that's why you see its influence.
ugm: And this is a very important for the victory do, in fact, if you know calculation is Victor ages from this, it will neglect the shoulder under estimate reduced by about 40%.
ugm: And this has been recently written in this work with.
ugm: Mr.
ugm: Martin hopefully the Boston hoover's when you're hot cocoa Western view of every analyze this based on the questionnaire creation we've got a very precise determination of this.
ugm: Part of suspected function, and then they are at higher masses, so this goes up to up to roughly one GB and then you have ports.
ugm: come to later, which are not necessarily physically masses so scale aspect to function looks different.
ugm: So, first of all, you have to make Amazon which isn't very narrow and then you can have cake a bad.
ugm: continuum which you can reconstruct from the continued K and scattering amplitude.
ugm: But this is not so simple, as this has been done by hand and arm and micrograms a moose or some time ago and just generate most of the 522 Richard simmons the Left interest escape a bar continuum but there's also strength coming from the so called correlative firework change.
ugm: So it was nice to large cancellations this cake a bar and this takes sideways things away from the fight, and this is important because, maybe, remember that objective made some prediction for strange for physical space of the simple model of Omega SCI fi exchange.
ugm: rotated into the strangest direction then you're getting strange form factors, because you do not account for these cancellations between this continual.
ugm: And again, this specter function have is a number of this threshold which can analyze and through cultivation is was done by an archives on myself much in 96.
ugm: And there is such a poor, but because of the nature of this is effectively mask so you don't see some enhancement here so it's just the Omega Pole and send you a higher lying residents of on TV.
ugm: Of course, the spectral function are constrained by physics, first of all, of course, the normalization stuff to be fulfilled, which means electric charges and magnetic moments.
ugm: Radio not imposed, except for the neutron charts radius squared which we take from the reason analysis was a book on which data.
ugm: card effective future analysis of electrons neutrons kettering and they got a precise extraction or see a neutral charge ratios from that so that's the value insulator between input.
ugm: Now they are so called super convergence relations which reflects the leading perturbed to see the behavior of the form factors.
ugm: The first robots game company, namely see if one goes like one of our T square because you need to glue on propagate us which each for like one over here to share the momentum between the three quarks.
ugm: And for if to which involves an extra elicited your spin flip for getting us as pressure my one over it, and this translate into super conversions relations or even just by gag rule on company about the veterinary parts integrated from zero from this treasure to infinity.
ugm: Of course, this was the number of parameters that we will see.
ugm: Now we also look at the phone types of time like region where you can measure the Cross section of a plus or minus to pee pee bar or an inbox or the reverse process in the one photo approximation, this is a form or no.
ugm: So here, you see no form factor absolute value square because these things are complex quantities now in the time like region.
ugm: And then you also sees this director CEO of S, which is a GM or some other factor, of course, only relevant for the proton but some threshold enhancement.
ugm: And he knows, or just by definitional says form factors at the threshold for him in Square, they have to electric magnetic even have to be equal.
ugm: And if you look at the data, these are some of our data from 2013 so funny oscillation which we have to describe later and also, if you might deploy face page to see that there's a strong threshold enhancement.
ugm: Even after you subtract out this common factor, and this will be covered later, when we look at fits.
ugm: So let me summarize this for the spectral functions which also are fit function, so to speak, you have of course victim isn't contributions.
ugm: which you can, in terms of the metrics part are just data functions, essentially the masses and zero comments of Israel related to the.
ugm: victim is uncoupling to the brooklyn and this masters in this way and essentially be fit these three parameters as a Masters or three parameters, the masses have given to us.
ugm: As he is a vector spectral function, we have these two pi continuum which generates the rumors on, and then we have narrow poets, which beyond one God and then also for the.
ugm: Time like form factors we need some broad polls, which report so it's this one, have no birds in the sky, the F K K bar and pyro continuum.
ugm: And then you have the Omega and the five have been awesome also for the Omega SCI fi only these parameters here fit parameters and then the other scale resonances plus some broad poets and.
ugm: Of course this is mathematically post problem, so the have an extra constraint is formulated by server 70 square in the night late 1970s, that he needs a minimum number of ports to describe the data.
ugm: So here's our summary, the cartoon of suspect or function again.
ugm: So in the ice skater case you Omega as a fire on top of the cake a bar continuum in the payroll continuum which largely consensus.
ugm: Then there are some narrow ports, and then there are some books which are quite small so in some bullet points capital S.
ugm: As a vector of you have see the road generated by two pi continuum is a strong enhancement on the Left shoulder portland for the particular for the radio.
ugm: And then we have some narrow ports small the ones we win some broad polls computer one day to these are relevant only for the description and the time that connection.
ugm: So now, let me show you how we fit to the data and how we describe the spiritual uncertainties.
ugm: Because it's like an experiment Syria also us uncertainties of somebody just gives you a number of his old uncertainty that is useless one plus minus one is very different from one plus minus point one one plus minus point one so it's very important that siri also supplies is uncertain.
ugm: So this is a data basis we are fitting to in the space Lake region so T is less than zero or two squares less than zero.
ugm: You have differentiate cross section data for mines mommy accelerator in from periodic splinter Jefferson that this is a range of momentum transfer squared.
ugm: which are in number dominating there are also some nice measurements from Jefferson let which methods are perfect ratio proton electromagnetic form factor and then for the.
ugm: Electric and magnetic one of the neutral, it takes about databases they're not so many, as you can see.
ugm: And then, in the I forgot to say, this is the time, like form factors often.
ugm: But cannot separate the magnetic and electric quandary because no differential data available so then every everything is given in terms of some effective form factor which is just this linear combination of the magnetic electric one.
ugm: So there are there are data about hundred 50.
ugm: g effective floating around from various experiments, we will see, then, about.
ugm: 20 effective n Santa Barbara has some measurements points for the ratio GP over GMP in basis a few differential cross section data, which we also imply.
ugm: So it should count the number of data points is 1700 53 and the number of parameters.
ugm: escape from here so for this as a residual a wanted to for the Omega as a fight, then these are the neuro ports that you have in X number of scale scale and number five is a vector one he says abroad poets and.
ugm: These are the constraints.
ugm: Total 11 parameters and then it says a normalization because this data, here I have normalization Constance these are 33 data sets in total and.
ugm: Also memorization data sets included in your best fit yes your megan's a Phi three narrow scale as ISIS kill us three five know either vectors and three plus three abroad either scales and other pictures.
ugm: Now the fifth protruded we look at the weighted average the Chi square divided by the total number of data points in the set.
ugm: Because otherwise you would be completely dominated by this minds data because essentially most policy database, but this of course we don't want.
ugm: And then, it was to definitional psychiatry we're so if the arrows are uncorrelated simply use a standard Chi square there, these are cross section data or form factor data.
ugm: Cross section might have normalization Constance perfected it of course not and then this is our cross section for given form factor prioritization opinion piece.
ugm: On on the angle and also on some parameters values for a given parameter ization.
ugm: And if if he knows a correlation because sometimes given in the papers between statistic and systematic errors then includes a correlation matrix.
ugm: As you seek my as a statistical arrows in the new I are the systematic errors, which of course is better, but not in all experiments, this information is given to you.
ugm: So what type of uncertainty, so if you have like an experiment, of course, the system medical statistical once, and this is only recently fully incorporated So this has never been done before in this way.
ugm: The system metrics one the to something like get hunan company did, but more sophisticated they had a number of pool of solutions and they just compared to solution derive some.
ugm: Are all forms it, but we do we say look at different solutions and then you say that the Chi square should not change by more than 1%.
ugm: This is some intermediate trips, not the final numbers, but you can see the tier six six plus four points confuses 2900 Chi Square and then 1% means to 88 7522933.
ugm: Then you can see, for example, which kind of puts our businesses range and then for these few calculate the form factors into radio and then we can give a systematic and certainly on this form, for this is a radio.
ugm: So this is a systematic error statistical errors like a by either the bootstrap method aws Beijing analysis and the show is Beijing analysis.
ugm: So go into detail, because all of you, knows it for some so called pure raw data, these are the 71 data points from low energy electron photos coming from Jeff isn't that.
ugm: Just to show us this work, so we have various prior so we can use eyes are normal distribution.
ugm: versus a normally just to do it and potentially are cut at some various because we restrict the is zero to be in some ways of plus minus five.
ugm: Or we can also uniform distribution, so the same restriction, but he sees that the universe, the distributions uniform.
ugm: And then we can calculate posterior from fifth to the data and receive that, depending on the normal uniform distribution it essentially is the same for one of the victim as a massive amount of coupling Constance so it's independent of the.
ugm: Prior as it should be so that's one way, you can do that, yes, is going to confuse us here, if you know extract vdi from this data set some data is not the final radius you can see that.
ugm: Changes not in the visible digits and you can also do bootstrap bootstrap is the same radius was essentially the same uncertain this one, you also for the form factors, so the red.
ugm: The red is a bootstrapping the blue is a bayesian, and so the resides identical and the following you all use bootstrap because whatsapp is much, much faster to implement in complicated fertility.
ugm: Excuse me so that's our uncertain analysis, nor can show results and to refer to this recent paper published and preserve, let us buy on religion has been home and myself.
ugm: So here as the fits to EP scattering a nutrient form factor, so this as a pure raw data, which I mentioned is a 71 data points at very low.
ugm: Q square because the energies are high, this one in to gv but this extreme forward direction if it's informative extremism mental transfer small, and this is a mindset data interchange between hundred 80 and 150 maybe they cover a large range of of NGOs and therefore some momentum transfer.
ugm: And you can see, we can describe some way so show not only here's the bootstrap arrows statistical arrows systematic errors smaller.
ugm: Roughly half of this, this is a fit of the electric phone for cross the neutral, and this is the magnetic form factors into two divided by the dipole to make the differences more clear.
ugm: And you can also describe this data, where.
ugm: You particularly important or Nice or he sees ratio of the proton form factors, so the electric proton of magnetic neutron which has been measured attention, led by some different technique.
ugm: And to see first of all in the fit as a black points and the open points are not fitting so shown interest in cities are also very describe.
ugm: The different experimental jayla pictured so walk us and Melissa to square that's a point has been said, many people live by looking at the data have.
ugm: assumed that there might be a zero crossing, and of course zero crossing of form factor is always interesting because at some area function and can do something was a structure.
ugm: But in our analysis, which includes also the time like beta zero crossing is this favorites as a single is not really been further down is.
ugm: implied by this data is also not robust so that's an interesting observation, here, of course, need some more data at large actually square two pins a stone finally.
ugm: And this is a now's the time like results so here show you the.
ugm: Electric effective form factor and the fitted data from various pessimism and Baba and he said eight.
ugm: Five and send the order data companies from day one day two best Q and so on, which are not fitted this or this open symbol music sometimes very much a robust.
ugm: But you see that, as this is oscillating structures and you can work out this oscillating structures by subtracting the so called smooth form factors is from a from a BA BA.
ugm: Publication basic course, this is a smooth form factor which can see roughly is a trend doses form factors and then you subtract us and you'll get this.
ugm: oscillations more work out, and you can see that to describe this oscillations quite where it's a red line, this is wet and certainly bend.
ugm: And a BA BA has also proposed some completely phenomenal logical fit formula three is for coefficients which is this form, and this is this dashed line split test Ly, which does not fit as an office.
ugm: And same for the neutral, of course, you're much less data, so the only fit to the.
ugm: Best and SMB data they are older data, also from a donor, which we did not fit.
ugm: They also inconsistent this in your data is large aero bars, of course, and again you'll see these oscillations here somewhat less pronounced, but they are there.
ugm: and against the smooth form factor subtracted and he has the best three has a fit formula, based on the data justice for him and you see that are.
ugm: crafters as well as as one is it's a ghost town here that I don't really understand but.
ugm: it's something as I told you that's a few data from BA BA from this ratio, which we can roughly 52 season so just become large very quickly.
ugm: So, also in your best day that you didn't fit from 2021 she has this red crosses in the large area well so they're they're consistent with our cross but.
ugm: This clear Christ for more precise date as they're also older data but they're all very uncertain, and these are predictions so.
ugm: When you go to larger T this this ratio, if you follow potosi should get constants of you CESAR constant but and uncertainties, of course, large.
ugm: And this is a face of God, you have a GM has them through data pace existing here from PSI didn't flotsam somewhere here very close with threshold, and this can be measured, for example at Panda when you have more polarization and differential data.
ugm: That cannot be resolved the President.
ugm: And now, let me know, let me.
ugm: come to the throttle radius and here we have a nice trigger generate a postdoc and you can receive from this school I liked his classic rulers that radius will turn out to be pointed at for for me.
ugm: Because the proton chart and the product chart radius is the same, we discuss now in detail the most.
ugm: So that's the definition is minus six times the slope of the electric phone for two speakers zero.
ugm: And there are two measurements possible two types of measurements, first of all, the atomic hydrogen lem shift so electronic music labs which a principal measures to numbers name is a constant enter radios and only recently people have started to look at.
ugm: least two levels so that they can get those two numbers in the old days, people have taken a report constant.
ugm: from some bands and just expected radios from this experience of the this energy has a leading term which is independent of racism that corrections.
ugm: which have says, these are non constant switches radio squared which was was calculated by and spader if you want, I can tell you a nice story concerning this.
ugm: device company, I was at MIT, but this is for the question session and higher order corrections.
ugm: But, of course, all this depends very much on the continent, only if you get a report constant enter radius from to measurements you internally consistent at been inconsistent this before, where people are at but constant.
ugm: from somewhere else, and this was not really internally consistent and then leptons total scattering so electron your importance get.
ugm: catering you get this famous formula, the multiple section times is form factors and, of course.
ugm: You have to extract the electric form factor of them that you then you can get to reduce costs, you hear you never measured zero, but you have to go across as possible.
ugm: And dispersion relations, allowing them to analyze all of these data at any tea and then get precise radios.
ugm: And I will also discuss briefly the neglected siblings a proto magnetic radius, which is the same so T square proton magnetically squared minus six of them up that's a normalization times the derivative magnetic 400 zero.
ugm: So our determination, including statistical arrows he says this one systematic errors for the electric waves of the partners point 840 these uncertainties magnetic is always bigger point 8496 uncertainties and here show you the development.
ugm: So it started with scared her line company united and 76 months for it to be larger and certainly some mega to excellent I took this up in the we saw that this.
ugm: Continuous summer and various PhD students maxine British king, you know loans and always, of course, certain religion.
ugm: And so, this is almost recent value, which is this one, this is compared to the core data 2018, which is essentially the old Kramer reside from your neck hydrogen, which is orange strictly see here.
ugm: And so, there are two important observations observations, so in this, and those who didn't come comply an arrow just.
ugm: Central value, but the value has been rather constant over the years, the arrows now have shrunk and now we have a systematic analysis of systematic and statistical arrows and it's quite a precise extraction is not yet precise as.
ugm: clinic hydrogen embryonic hydrogen, but this is a.
ugm: Much more much more data in, and it was much more complicated.
ugm: it's always fun for the data is at various metal transfer magnetic radius of the proton has also been more or less constant.
ugm: It has now levered on the value that is sort of a somewhat, because the electric one so that's a value to take.
ugm: And here's a comparison with recent or not so recent experimenter determinations.
ugm: So this is your EP scattering So these are the mindset analyzed by the minds people in this analysis economic tell you is wrong.
ugm: It should get the small radius it did not apply all the analysts city constraints in a fit function and that's why they got this large radius.
ugm: Also, if you look at the magnetic form factor, it has very funny behavior so you should simply forgets this data great you'll notice it's just not up to date.
ugm: Then keynes's famous bionic hydrogen resigned from PSI came a collaboration between he started the soil proton puzzle a radius business safety repeated.
ugm: measurement and then there was this, this was a piece kettering and salary P spectroscopy say electronic lamp, but this was the one where many.
ugm: traditions were put together and some value for the repair constant was was this was not so consistent and only recently people started to consistently.
ugm: In this works by the skin off in England, I really measured two levels that you can extract the radius ends with the constant consistent in this suppose.
ugm: Small and this is the pivot analysis of the data which was a small radius.
ugm: And this is our disperse winners of space like data alone, which I can talk about, and this is the one which I showed you the space and the time like data and so.
ugm: Then there was some measurement of the radius using initial state radiation at mines, but the system which uncertainties just the proof of principle and core data sets now they move from here.
ugm: To here 2018 without including any of ours is by the way, which I find a bit strange.
ugm: Now you can also compare this to the same of artists and certain moments, as the same audio says particular combination of electromagnetic form factors integrator of all T, and this is a number we get.
ugm: This is uncertainties and this is this sort moment is another combination.
ugm: mega subtract from the form factor from the form factor squared this radius contributions of one, and this is all numbers uncertainties and here you show us, as Mr audios.
ugm: From this work medical proton scattering this extractions from kmart group in your neck hydrogen, and these are older ones from scattering essentially.
ugm: By blocky up and other people cry on this lie over the years.
ugm: And we can also compare these direct measure of energy shifts CS shift into hyper find structure shift.
ugm: which depends like this on the radius sorts of mono moment, and the same up radius so he knows the red pens are this.
ugm: resides from Antonioni, it is the chemical abbreviation published in science, and this is our desired which offices larger aero bars because already uses not as precise at this and you see that are hyper find result is quite consistent also in uncertainty this every night.
ugm: And you have predictions, this was recently published in physics, let us be so period is going to measure.
ugm: This even higher statistics now it's free energies remember they had measured at 1.1 or 2.1 Jesus, as these.
ugm: data which are shown here the red one and the groupon and now's a call to measure, a point seven 1.4 point one GB So you see the red line Point seven.
ugm: goes up to here the green line which is for 1.4 which was from here to here and the blue line which is covering the two square from from here to here, and these are predictions.
ugm: For these various energy ranges for this topic to to experiment.
ugm: And you could also do prediction for you, plus positron portals getting should also be done there because there was a positron been, which is essentially sensitive to to find correction at before the operation but they're very small in this for such momentum transfer squared.
ugm: and also the neutron radio, so I said that squared which one raiders I n squared is mostly input in dispersal analysis.
ugm: But not suffering taking when big net event can extract and that's the value, you get in the news analysis point 864 buses uncertainties again that's was a stable over the time that you're too late, I.
ugm: may get that I work with Mr be risky movements and then in it, I have a recent workspace like data alone time and space like data so again, this was a stable over time variation is somewhat large because they're not so many data in the sector and.
ugm: This is all just the largest Ian radius, so this is from the three.
ugm: Electric proton magnetic magnetic nutrient oldest and largest one this one, of course, is small and negative concentrated squared because the chakras the neutral zero.
ugm: And if you look at, let us use it at the excuses, you can only make precise calculation of is a vector radio because they're not disconnected diagrams and.
ugm: They are consistent with what we get for the.
ugm: Electric and magnetic ones, this large on so this and yet.
ugm: So let me summarize an outlook, I think i'm good in time so.
ugm: I hope I convinced you that person series of best to to analyze and looking electromagnetic form factors.
ugm: It allows for description of all data and the time and space like region so you always get a small proton charge radius of pointy for for me if all this research coordinators and never changed over the years.
ugm: equals or, for example, the precise mind state a claim to people are traitors but, as I told you, the analysis of the status not correctly done.
ugm: A magnetic one is always a bit bigger support at five support on, and I also short is that most recent experiment, either from scheduling or from also electronic hydrogen tend to small Ray us to infect knows a whole proton puzzle.
ugm: Business has shifted to a precision business now, and this was this in this small paper, and when I when I wrote in science Bulletin 2020 very essentially made this point that it's no longer puzzles know to precision diversity in the stone brave very precise.
ugm: So short is that they can make based on all disperse of analysis for all existing that it can make very precise predictions for pure to experiment which is.
ugm: going to happen in the next few years at Jefferson Latin also positive importance getting at the same energy so many trans fats.
ugm: They also ongoing activities and minds in particular was a new miss accelerator, they are going to measure the form factors law momentum transfer again very precisely.
ugm: which will be competitive to pure two, and this will be another check, I would say, but I mean they won't find something different from this.
ugm: So the magnetic courageous which you can also track from this person or nurses or the largest 1.86465 for me, but there are still some experimental challenges left.
ugm: which, of course, it will also it for the input into this person analysis, so I told you that this form factor ratio of the proton which, in our nose seems to level off does not indicate zero crossing around 1010 Square, this is something man should X mentally check.
ugm: This, I think, will be done in the future Jeff has left.
ugm: Of course we would we would like to have much more solid form for QA measurements of time like when you're seeing that most of the data is referred to as effective form factors there's no information on the.
ugm: differential cross section and improvisational service, which hopefully will change in the future also respond I supposed to do, big progress there, because then by can further disentangle the.
ugm: magnetic and electric form factors in positions of time, recreation is so far as not really possible only roughly you've seen the large uncertainties which emerge there.
ugm: And of course there's also ongoing activity and measuring your important scattering not so much I believe in getting another constraint on the writers, but chara testing leptin flavor university or knows that in.
ugm: The Amazon the cases seems to be a little flavor violation indications let's say like this, so this would be another test, because if there's lipton flavor.
ugm: Universality the Rangers expected to electric and magnetic one to you, of course, the same as an editor portal scheduling once properly noon mass effect and really have correctional taken into account, but this of course can be done, and there are two.
ugm: Experiments we try to achieve this news a PS is an orange experiment which essentially works with secondary beam so from a pioneer in the generator neon demon then they can.
ugm: scatter positively and negatively charged murals on the proton questions the secondary emergency rates are not very high, which is a main problem and i'm is going to get a very high energetic move to a few hundred gv.
ugm: Your ones on the proton so that's a it is has been born or subconscious experiment and they measure an extreme for directions that against they can scan a very few rages very.
ugm: very small Square, and this will be very competitive and getting another check on the proton charts and indicators and I think that's all I wanted to say no, thank you for attention and i'm open to discussion now, thank you.
Ivana Hristova - STFC UKRI: Thank you very much, Professor meisner for the very insightful and very interesting talk, indeed I will stop the recording and and we can start the discussion.