11:58:55 you know, but just finished my certain meeting today need to get breakfast, eventually. Thanks a lot for comments.
11:58:57 I tried to make all of the corrections from you and absorb Michael, but they still have a few questions. Okay.
11:59:07 Were you going to rehearse today.
11:59:09 Yeah, I would like I didn't have much time to practice I just looked through the slides but they think I will be able to do it in less than 15 minutes so I might actually ask you.
11:59:21 Yeah, if I shouldn't let some other information there.
11:59:55 Hello.
12:00:26 Where's the room.
12:00:52 Let's give it another couple of minutes see who else calls in Patrick told me that he's unable to call in today because is so amazing with class 12 group to rehearse his time for the abs.
12:01:14 Um, I mean that should be fine right.
12:01:16 Yeah, yeah.
12:01:18 But I don't know I thought Jaan and Axel would call in, but let's let's give them a minute.
12:01:28 I think it should be here at least. Yeah and Ethan as well. Yeah, oxymorons here.
12:01:38 Yeah.
12:01:45 Yes, good I want to give you a money plot but I don't think I made it yet.
12:01:49 I think it's fine I think Michael just to meet some moments I don't think of all included there for now. Yeah.
12:01:55 I don't think it's a niche, it raises an interesting issue, if you want to propaganda materials that included what the expected error bars are for tea packs.
12:02:07 Yeah, I saw I saw error bars on perception ratios from our pro defects proposal. What's the official, the official numbers that proposal numbers are there in some for some configuration some assumed crystal size crystal placement.
12:02:25 Do you see my screen.
12:02:27 Yes, I do.
12:02:28 So I think this is the only thing that we present to the official official line. No, that's the no this is, this is the charge average staffer Yeah, wonderful church over to Sheriff I'm assuming Yasser uncertain just.
12:02:45 Now there is one, it should be in a proposal.
12:02:50 You have a table or something. Now it's a plot, based on yarns calculation.
12:02:58 It shouldn't be the beginning right yeah it's up closer to the top.
12:03:05 Now, should be after that.
12:03:16 You means this. Now, was church over the. That should be MP, it should be on PRL and a few, few days, no nothing on the church average serve just go go up with there were some table I would just want to see too far, or you mean for being there is no answer
12:03:31 There is no uncertainty, there is only a statistical rates, but don't we say how many events per day. Can we just back it up from that, you can calculate it, that's what.
12:03:41 Okay, so what I'll do is I will just to have propaganda is always helpful.
12:03:48 I will turn those into ratio error bars.
12:03:53 And then I will make the money plot.
12:03:55 I'm just stunned that we didn't have that I haven't had that ready us, you're talking only about statistical uncertainties right not systematic. Yes.
12:04:06 Systematic No way, just run the worst liberal defense so exactly yeah that's the.
12:04:20 times hours. Exactly. Yeah, so I can make it like in a few minutes, just yeah yeah No I did not saying for your talk, I just, I can't believe I didn't have this in my possession, this is something that I'd love to.
12:04:27 Yeah, I mean I can I need to know where the flashlight batteries and those things, the biggest concern is, systematic and sort of just and uncertain just so from know I mean
12:04:42 yeah I think systematic says of work matters, systematic he's gonna kill us on every point except the 110, the 110 will be statistical limited.
12:04:51 Yep. So, I don't know. I don't know if I mean, it's not, it's more systematic experiments of statistical one right so i official in Blake shops I'm like just statistical uncertainties
12:05:12 and faced with a similar conundrum and yes we would often present, like a little air bar for the statistical would put it in a box that was the approximate size of the systematics.
12:05:23 If you, if I can share my screen.
12:05:28 So you're meeting.
12:05:32 Nice always
12:05:35 so Can people see that.
12:05:37 Oh, you have this. Yeah, this is beyond predictions, and this is only statistical.
12:05:47 And we imagine if we do a optimize configuration like how small calorie monitors at the forward and and put the extra crystals at the back angles that we can reduce this by a factor of two.
12:06:06 Can you send it to me please. Yeah, sure, no problem.
12:06:21 we'll quickly change it.
12:06:27 See I just have to find my male future would be somewhere here.
12:06:34 no new mail.
12:07:24 I'm so sorry I'm a bit because I was pulling in to do the rest of the show so 44 bucks right.
12:07:32 Sorry. So Patrick is a other guy is the other one who's playing into the dress rehearsal today.
12:07:40 I yeah but he's doing it in our, in our class 12 meeting not in army. Okay.
12:07:51 So, start.
12:07:51 Yeah, go ahead. When you start
12:07:58 share screen.
12:08:03 Okay, do they see my screen.
12:08:06 Yeah.
12:08:13 Okay, seems to be working timer.
12:08:19 Okay. Hi everyone, today I wanted to talk about new proposed to photon exchange experiment, or T Beck's at the zoo.
12:08:29 So, before going to experiment I wanted to quickly overviews, you look up scattering Syria and the nice thing about your electrons, is that electron scattering is a valuable tool to study protons and neutrons in the internal structure, quantum electrodynamics
12:08:48 surface, a performative approach that allows us to use more than one foot on approximations, and brought on is not point like and his internal structures differential cross section in the bone approximation is shown below.
12:09:09 And, and, depends on electrical magnetic form factors so this one in fact there's the electrical magnetic charges revolution inside the proton, and by measuring from factors via studies internal via via able to studies internal structure of the proton.
12:09:30 In, 02 experimental techniques to measure form factors.
12:09:36 And the first one is so cold frozen good separation technique that separates electrical magnetic form factors by introducing so called the reduced boredom cross section and another one is a polarized polarized measurement so was it is used when they using
12:09:58 polarized electron electron beam.
12:10:03 Sorry, longitudinally polarized electron beam and polarized proton target form factor ratios can be directly determined by simultaneous measurements of the transfers and look at you know component of recalled proton polarization.
12:10:18 And when, when we compare the form factor ratio obtained from Rosenbluth separation and the one obtained from follow polarization momentum transfer technique.
12:10:33 We see that there is a large discrepancy at. When we are going to hire momentum transferring ship, and the most common explanation.
12:10:41 And this is a so called as a problem form factor puzzle.
12:10:56 The most common explanation is that this discrepancies due to the contributions of higher order terms, not normally included in 3d radiative corrections.
12:10:58 Speaking of radiative corrections, in general, for elastic electron proton scalar cross section experiments on the Legion and thanks to be done all the corrections are included.
12:11:10 Because KD is a preservative we can rewrite differential cross sections of this processes as important differential cross section plus a small correction so to the cross section, and from this five man diagrams is a two photon exchanger correction, his
12:11:29 particular interest, since it couples directly to the proton and that can affect as a form factors.
12:11:39 In general, the two photon exchange connection is only partially included in included into calculations in the soft.
12:11:50 Two photon exchange limiter when one photon carries negligible momentum and as intermediate for the next state remains the proton is a difficult exchange correction that can be exclusively calculate at the end.
12:12:04 This part is included is included in 3d of corrections in order to remove as a divergence of from from brimstone and correction turn the car to photon exchange correction is hard to deal with because the protons have an intermediate state and born for
12:12:19 factors are no longer valid for this is that is why it's important to measure it, its contribution experimentally.
12:12:30 So, when we are considering a one for Tony exchange, leading term and old next to lead in term.
12:12:38 Next to Legion order processes, we can rewrite differential cross section as a born cross section.
12:12:44 plus.
12:12:47 plus chair charged the bank of the church independent correction St.
12:12:53 Check dependent corrections which are two photon exchange correction and struggling correction depends on the sign on the lip done and as it
12:13:04 as it Yes Get rid of the proton.
12:13:06 So, if we take the ratio of the positron proton to electron proton cross-section.
12:13:20 we can directly measure the two photon exchange contribution. And this is what we are doing an experiment.
12:13:23 So, 003 recent experiments on director to foot hard to photon exchange for extra extraction, which is a web three experiment that Novosibirsk crush our cluster up at the jail up and the lymphocytes days in Germany.
12:13:43 As a result in a cross section ratios measure that this experiments are shown to the left.
12:13:51 And there's a great speaker corrected on theoretical predictions from Peter blonde them is presented that to on the picture to the right.
12:13:59 And the reason they're all in the reasonable agreement which is with each other.
12:14:16 However, there are a few things to be mentioned. One is that only 1% of hard to photonic change was observed. And in general, to photonic change correction that engine to increase with increasing q squared
12:14:32 results list.
12:14:36 And, in addition the results lives and expected for several theoretical calculations, including Peter London's one and if you're talking about as the most recent experiment.
12:14:49 Olympus Olympus data we are also compared with several theoretical models, where we can see that there is a high probability of too hard to photon exchange present, and the discrepancy between calculate calculations of Peter blonde on for when he included
12:15:10 nuclear and nuclear and plus delta
12:15:19 cannot ever serve.
12:15:26 Sorry, was the results from Peter blonde on a slightly involves obtained experimental data and the results bill below unit you execute square inch up to one g week versus square that cannot be explained by current CUNY calculations.
12:15:41 from an illogical predictions from young burner and dispersion calculations from Alexandre Toma which is shown in the red and the green. I in a birth agreement with Olympus data at lower who squared, but they appear to rise to quickly as we are going
12:16:02 to hike to square, all over epsilon.
12:16:03 And there is some indication of dp increasing, increasing IQ squared suggested that as a significant part that the photon contribution might be present at high IQ squared, values.
12:16:16 So, in order to address this via via purpose in the new two photon exchange experiment, or simply t Beck's at days it has been line.
12:16:27 One of the primary requirements for measuring the two photon exchange is a high intensity positron an electron beam, the energies of several DVDs. And then, so far.
12:16:40 Daisy is effectively is only one high energy physics laboratory, are currently capable of such intense intense syrup was it from an electron beams, as these are two sacred cyclotron
12:16:57 can provide the extracted the beams, up to 1600 amps for electrons and certain items for positrons.
12:17:08 Enter the energy up to 6.3 GV. And in order to address the problem form factor puzzle kickbacks experiment this plan to run it to be more energies of to gv and the three gv is that for the longest to go in up to 64.6 Gb per square, square inch.
12:17:30 Whereas the heart two photon exchange is expected to be a larger.
12:17:36 So, yeah, I think that's all I wanted to say here is the kinematic range 40 bucks is shown in the following slide the end, we propose two conditions experiments using the to gv been, whereas the skin and cross section is still relatively higher.
12:17:57 Where's the scattering cross section is still relatively higher. Was this needs to be done for a few reasons.
12:18:01 One is, as I mentioned already a scattering cross sections are relatively higher this beam, beam energy and it would allow us to debug the backs up or how to set very.
12:18:15 If you're very small period of time. And in addition, it would allow us also to cross check the defects data visa Olympus results at several, several points.
12:18:30 As you can see from this book.
12:18:33 As you can see from this blog and Zen of once we need the conditioning via, we need around six weeks at three gv a beam, beam energy that would allow allow us to cover higher two square inches that was in previous experiments, deep.
12:18:52 So Jen for simulation of the proposed effects experiment is shown in the following slide the ends electron the beam enters through the beam line in the upper right angle and the
12:19:18 river travels through the target sales and scalars into detectors, or continuous straight into the beam down visit this place. Here is a purpose to experiment on configuration cuz Sam, five by five areas of Fleet tungsten downstate crystals at the polar
12:19:27 angles of Sochi 57 to 90 and 110 degrees, that they used to measure scattering yield and towards additional Illuminati monitors place that plus minus eight degrees with respect to the beam at approximately three meter distance from the target that are
12:19:51 used for Lumina luminosity measurement.
12:19:55 Speaking about color, five by five color in the third
12:20:02 is another. This is one of the key, key element of the capex apparatus, and as elite tungsten was choosing souls, smaller radius fully tungsten is 1.9 centimeters.
12:20:20 So, you from the five five by five kilometer we can use just the central that three of the three by three area of crystals for acceptance and the outer layer of crystals
12:20:50 contains no will be a transfer shower.
12:20:41 As a prototype of 45 kilometers shown on the picture to the, to the right and the plan was that there's a scholar in these humans.
12:20:51 Moses, April of our but it wasn't possible user restriction.
12:20:58 And the next part of the apparatus is a beam luminosity monitor, and for his ability to monitor two quarts of counters, applying to be used.
12:21:20 What's a term called is why do you use technique for high rate polarity violation experiments layers such as qV. And this monitors up blend to be pleased that eight degree angle with respect to the beam aware molar and Bob Barker sections are only few
12:21:28 few percent different term.
12:21:45 And as a monitor for the proposed measurements of you will see approximately 10 to the fourth. molar or baba events per bunch of meters, three orders of magnitude more than from EBS get rid of events.
12:21:49 Sorry.
12:21:51 Yeah.
12:21:54 Reserve vacuum chamber for deep experiment shown on the following slide the geometry for the scattering chamber is that their mind from the solid angle.
12:22:06 September by as a crystal coloring mentor and luminosity monitors, is it to site.
12:22:20 Exit windows covers the polar angle of elite constant freestyle kilometer ins range from 25 220 degrees.
12:22:20 While the exit window of the forward direction, need to be needed for being organized to monitor covers arranged from seven to nine degrees.
12:22:31 The two forward excellent windows, can also be connected to the middle pipe during use multiple scattering of familiar and ba ba electrons are directed into by luminous to monitor.
12:22:45 As the liquid hydrogen target will be filled through the single field to present served as a return to force a bolt of hydrogen, as a fuel to terminate to connect connects to the condenser which is shown in the picture to them.
12:23:03 Right.
12:23:05 And, see, ch 110 or to car cooler has a cooling power of 25 watts at the 20 Calvin's which is sufficient for defects needs as a target cell is also covered with a humanized Miller super insulator.
12:23:23 In order to provide a prevent ice formation and reduces radiation heat lot.
12:23:30 Speaking about liquid hydrogen target.
12:23:33 Because we are very liquid.
12:23:37 Because we are going to fight you square range, whereas the electron proton scattering cross section is much lower.
12:23:44 We need to have liquid hydrogen target in order to increase as a luminous been luminosity.
12:23:52 And their current defects target design that contains of the three pieces as a top blocker which is used for fulfilling liquid fighters and into target cell and four variables complacency level sensor commercials a level of liquid hydrogen is a target.
12:24:14 As the target cell itself. And,
12:24:19 and the bottom block of is temperature sensor in the heater in it is the current 20 centimeter long village liquid fighters on target design that would allow us to increase the Beemer luminosity by 200 times with respect to the luminosity of the previous
12:24:36 Olympus experiment.
12:24:39 We are also planning on further multiplex design upgrade to visit gems.
12:24:48 And sorry.
12:25:02 With gems placing in front of each of the Restore cleans of gems placing in front of each of the color emitter, with an active area around the 20 by 22 centimeters, which is needed in order to fully covers the coloring.
12:25:06 And as this would provide us with additional trick and information that could be used to increase the detector acceptance by including the outer layer of crystals into acceptance and this would almost doubles acceptance of our parameters.
12:25:23 In addition to skittering vertex reconstruction information that would allow us to suppress the background events from multiple scattering in the scattering of the Timberwolves and probably we could also use this information in order in order to increase
12:25:41 as it may have been luminosity by making the target sell one get resolved sufficiently decreases zQ square resolution.
12:25:56 As a Hilton group as a proposed to include the jumps and to keep access apparatus has developed the gym detectors previously falling pursue some dark light the experiments and they showed the reliable operations.
12:26:03 And so far, they showed reliable operation.
12:26:14 This is this is something that will replace with, with a quote from Douglas, and it's basically these expectations from Deepak so show them the following quote, and, basically, I will just replace this book here.
12:26:23 And so far i t Beck's collaboration includes 15 institutions from several countries and 40 collaborators and total subpoena feature, your previously on Olympus experiment, so we have a lot of power and a lot of people to work on it and I would like to
12:26:42 thank you for listening to my talk, and I would like to thank to collaborators for letting me presenting work effects on the, on this quarter workshop.
12:26:54 I think that's all. Thank you.
12:26:57 So, okay, I changed that.
12:27:08 19 minutes. So, I think you're, you're given 20.
12:27:11 Yeah, 20 plus them but I didn't. Honestly, I didn't practice yet so I might be either slower or faster depends on how much I want to.
12:27:21 Yeah.
12:27:24 So, One One of the things I think I will replace this with the ones that you will send it to me.
12:27:38 Okay. Anybody have comments.
12:27:44 I would strongly urge you to rearrange some things that the intro.
12:27:52 Like what to get to the puzzle the problem first before talking born approximation.
12:28:02 So I've wanted. Yeah, I thought about this but I wanted to introduce personally what is the GG are.
12:28:09 And this is only point by that way if I was a slide before problem, I don't know if I can just simply remove it, or would you feel comfortable talking about the form factor problem without a visual without necessarily explaining what GE and like not even
12:28:26 mentioning GNGM. Yo, of course, yet but but but introducing the problem it's sentence number one verbally.
12:28:36 It's an idea that I throw out there for you to consider. So you're suggesting to just remove this slide was born approximation completely I don't, I don't mind the slide, but that I think the first four words that you say should convey the problem that
12:28:54 we're trying to address. So you're suggesting that sweet chairs like the slide three and 32 and three.
12:29:02 So first introduce the problems I am I that is an option my comment is not so much visual, it's not necessarily the visuals that you're showing but the, the, the words that you're saying yes you.
12:29:16 It's more basically a motivator the problem first introduced. Yeah, yeah. The problem should be motivated, as soon as possible. And then if you want to talk born approximation and then once you have gGm go to this figure that's a totally reasonable way
12:29:32 I think, I mean, I honestly wasn't sure you just might completely remove the slide.
12:29:38 It just that would also be an option.
12:29:41 I don't know, I think I think the good point I will remember I could down.
12:29:49 Yeah, okay, was this one done. I will try to change it. I think it's a good idea.
12:30:01 Yeah, if you scroll down.
12:30:05 Yeah, keep going.
12:30:09 There, that one. Um, I think it would be useful if you can remember to say that it's difficult to compare the different experiments on a single plot, because the Q squared, and epsilon are not the same for the, for the three experiment, but, you know,
12:30:33 is what that was political say so. So, I like the box of government about in your comment about the comparing the visa respect to the circular prediction another term of epsilon squared dependence.
12:30:46 Yeah.
12:30:47 But I also wanted to keep my plot from here because it actually shows that there is some presence of up here on so yeah I should write it down.
12:31:03 Yeah, I think you might forget about this.
12:31:07 Yeah, I will. pointed out before. Tell him that maybe appearances work here. And, and then further down you do another plot vs epsilon i think
12:31:20 you mean this one now.
12:31:28 Was it totally fell up for another one. No. Okay.
12:31:29 That's cute squared.
12:31:31 Yeah, I only present that ever seen in the queue square, because just for consistency, because we started we started to I mean it's, it doesn't matter really but I presented never send in terms of course because a form factor problem, your shows the plugged
12:31:45 in terms of.
12:31:47 of. Okay then, like, maybe on your original slide you had another plot with vs epsilon.
12:31:54 Remember my might be not sure but might be no but no, no other now. Okay.
12:32:04 Any other comments, we could reverse this one.
12:32:07 I mean this is the. I made this figure for the PRL.
12:32:12 If you like it and Q squared. you could do.
12:32:16 I think it's absolutely fine. I mean, I guess that given the referral source a point where I'm talking about this because I can refer to your articles from.
12:32:24 So I will just keep it here for more reference to the article.
12:32:30 Okay.
12:32:31 I had one other comment that I think is a few slides beyond so if people wanted to say anything about earlier stuff they should go first. Yeah, let me the next slide.
12:32:41 I know this is rather trivial, but you called it a cyclotron, it's not it's a synchrotron do this as a psychological, I think you did, but, you know, my.
12:32:57 Yeah, sorry, cinco cinco, yeah. Sorry,
12:33:03 that was it. So, you can go further down.
12:33:07 This one for me.
12:33:11 So, in your discussion of this, you left off a motivation. That is for me a very interesting one about TX specifically the range of Q score that it covers.
12:33:25 And the reason to go 234 and five Jeff squared, certainly is to make the effect size larger right the discrepancies bigger they're
12:33:35 definitely if we're going to see an effect that's where to look and you said that.
12:33:38 Another reason is that the Blunden calculation, which we believe ought to be pretty good stops at three.
12:33:48 And if you want to look at prohibitive QCD approaches like GPS and stuff there you start to be good like around five.
12:33:57 So, with with the second.
12:33:59 So Blunden did up to three Gb per c squared.
12:34:04 Yes.
12:34:06 One they made a prediction.
12:34:07 London made a prediction. So, so, you know, the data don't necessarily agree spot on with London but I think there's an element of, of, especially the from the J life community that London is probably accurate, and that you know any any discrepancy with
12:34:23 Blunden could be explained away by luminosity.
12:34:27 London could be explained away by luminosity. Miss measurement, like the the the normalization might be off.
12:34:31 Got it. Blended three. And there are other approaches that maybe work at about five, but three to five is like the sweet spot where there's no really good theory.
12:34:47 I was just one I didn't know. And it's, that's what I really like saying, I give it to you as ammunition in case you choose to use it.
12:34:57 I think I could put the, so I could make it something like with errors, basically approaching three something like London. But I do have some references to this calculation so above five Gb per c squared.
12:35:11 Yes. This model right yeah so there's the two papers that are the authenticity of one and then the kibble and bounder hug and I'll send you by email does the citation.
12:35:23 I think it's a good point. I didn't know about this. So can you share that. Yeah, absolutely.
12:35:29 To be fair, they do the calculation below five, but I think the consensus among theorists is they don't trust it below five, you have like Virtus stone good argument here on my end to the other slide or.
12:35:46 I mean, I would like to include that I didn't know about this.
12:35:51 You please forward it to me I will take a look and try to quickly.
12:35:57 Yeah, thanks a lot.
12:36:04 shall go first.
12:36:08 Yeah. Yeah. All right.
12:36:09 Yeah, this is the one that I was thinking with epsilon.
12:36:15 You I would remove the, the, well, you know the slide that I sent you show is the Olympus data, and the two and three jobs.
12:36:28 I think the class and about three, because they're a different two squares and epsilon. It's, it's, it just muddies this picture.
12:36:40 I put the slide that I just sent you or the plot that I sent you.
12:36:46 Instead of this one.
12:36:49 Let me let me check the weakness or use a couple of slides who wanted to show
12:37:00 you would like. I think it was you sounded yesterday right now no no this this one that's on the screen right now. I would use that one, which is what you show.
12:37:16 No no no no no it's not what I'm showing here I'm showing literally like kinematics I didn't want. So, here at school squared versus epsilon was a coverage.
12:37:27 Yeah. No, I understand that, but it it looks.
12:37:31 I don't know I find that.
12:37:38 What do you conclude by that just sold so what I wanted to say is that I wanted to show you the kingdom it so because I mentioned in three experiments in the before.
12:37:45 I need to get motivation 40 bucks basically tell me what new data, we are, we will give you, and basically two things. One is it high IQ score it wider epsilon the intersect with Olympic with previous and Linda was data, several points so of course chicken
12:38:15 principles that solid wanted to conclude, I didn't want to include tables there and they wanted to quickly summarize what was done in the past and where we're at with the packs.
12:38:15 Fine, I think, like the.
12:38:19 I just find that it's, it's messy.
12:38:25 Having.
12:38:25 And people will look at it and say there's no agreement between the, the three, I mean it's not the agreement that just to kinematics ranges. So, Yeah, the measurements Okay, fine.
12:38:38 It's weird to not have these with, like, uncertainties, or something.
12:38:43 So, it was a previous plot. I think the simple solution from actually just the number one searches on epsilon from web experiment, but I I need to split like long time ago from us and they just remove the replaced music ebooks kinematics and I couldn't
12:39:02 find the India uncertainties from the class papers. So, I didn't follow snap.
12:39:08 So, this was this was a four year hobby of mine during my PhD of tracking what the hell they did for their ears.
12:39:24 So includes a mic but it's actually suggest that they just removed and sort of just on epsilon from. So those weren't uncertainties that you remove those were spam boundaries so their bands I'm going to annotate.
12:39:31 No no no, yeah, it's basically the range of epsilon. And then if you do that for Olympus ours are like DB DB doop, doop, doop, doop, doop, doop, doop, and then you do class, and this is flipping hilarious.
12:39:44 Yes fans are like a 2d box.
12:39:50 Yeah, like this. And if you want those boxes and the right guy to talk to I've corresponded with so many of them.
12:40:00 Exactly.
12:40:00 I saw it in the bus, but they haven't seen this in in the paper place to invest, at least put boundaries on.
12:40:09 I think they put your boundaries on epsilon and you can literally calculate squared, range or.
12:40:16 I've got a plot, yet part of the problem is that Miss drawn so some their trap is boys, and some of them have like weird Alabama shaped cutouts in them.
12:40:32 Yeah, and they are non trivial so that the specification is a list of points that you connect with dots. Again, what I should just take these out is because it's super noisy it's super busy doesn't like you want to show is that the red points extend way
12:40:40 You want to show is that the red points extend way beyond what's been measured before and if you draw a whole bunch of black lines that correspond to their whatever trapezoid.
12:40:51 You're distracting from the point that. And then you'll, you'll, it kind of removes the reasoning for t Beck's because a lot of those episodes will intersect with our points right and class had two events out there because all of their data was here but
12:41:11 yes it has been, but it just doesn't. Yeah, right. Joe Olympus and TPX. Yeah. Okay, so I will just keep it as it is right now is out there.
12:41:15 I might actually just change it the from epsilon squared just to average epsilon, or mean epsilon squared.
12:41:24 If, if I can steal the screen for a minute. Yep, sure,
12:41:34 will stop.
12:41:44 So this is, this is the beginning that they use when they plotted versus epsilon.
12:41:52 So they had to epsilon bins one that was like this.
12:41:57 And the other one down here at point eight or something.
12:42:02 And these are the Q square Grange where they
12:42:08 selected their data from.
12:42:10 And then.
12:42:16 Where's the other one gone to.
12:42:21 I don't think I want to focus on class at a close up experiment at all like, Yeah, I agree with flash.
12:42:31 It says the worst out of three. So, in my opinion, so I don't know.
12:42:39 I would rather not to.
12:42:41 And, and these are the two, how they chose their two squared been, they had, you know, these large funny shapes.
12:42:50 And it's, you know, they couldn't do very much else because they had, you know, they generated events all the way up.
12:43:20 For GVQ squared, but the statistics or an all down here at high epsilon and low key squared.
12:43:14 Okay. Um, anyway. Yeah, I will not too. I think I will take actual suggestion just remove our bar, I will probably change it to mean q squared and mean epsilon, are the measurement is a proposal is it put it everywhere.
12:43:31 Okay, let me quickly share it again.
12:43:34 Yeah, here. So I'll just replace epsilon squared plus b squared, and should be good.
12:43:43 shall go first. Yeah, right.
12:43:51 Now after this.
12:43:51 Yeah, this is fine.
12:43:55 Yeah, just for your information, the calorie matter is that small box on top. Yeah, yeah, no, and this is really to provide insulation. This small box goes inside this one.
12:44:11 And there's two inches of insulation around it.
12:44:32 Stop it, turn it into a ball of ice. So we, one of the scenes that there wasn't sure about is that you're pulling it down with liquid hydrogen, or heater helium.
12:44:30 We have a chiller.
12:44:34 It uses some funny fluid.
12:44:37 You know it's not free on but it's something, some organic or whatever is cooling down to minus 25 Celsius. I should probably also mentioned that the resolution of the constant temperature dependent that's why we have it here right yeah that's that's
12:44:56 why.
12:45:00 Yeah, I think I didn't do it. Okay.
12:45:05 Yeah.
12:45:06 And, you know, we haven't.
12:45:10 If you talk to Tanya, who's working on the heavy high density.
12:45:18 Central eating glass, which isn't temperature dependent.
12:45:26 She claims that the red tongue stage doesn't improve so much by cooling it down to minus 25.
12:45:36 It goes from 1% at minus 25 to 2%, that sort of room temperature.
12:45:46 And if that's the case, we may not cool it down, if, if, if we can live with that sort of energy resolution.
12:45:54 But, you know, that's a detail that we still have to test.
12:46:00 And so that's why I built this calorie amateur the way it is too, so that we could call it down and see if there is a temperature dependence.
12:46:14 Got it.
12:46:21 Okay, got it.
12:46:24 Yeah, I was this one this whole student from Oxford, Doc. Yeah.
12:46:34 It's fine.
12:46:40 Yeah, you're the expert on this so I need to sing call to the so I wanted to feel everything into single slide but they couldn't say it separately chamber and target but I need to think how to present that they'll probably remove some of the stuff from
12:46:54 here.
12:46:56 We have restructured slightly. Yeah, I think it was fine.
12:47:01 You know, and you you were within the time, so he some has complained about this blood, that is different but I think we just changed visualization. For and they just the screenshot that.
12:47:16 Well one has the gems in one doesn't.
12:47:20 Yeah, but also visible. So what was your comment about why this picture is different from another. Um, well I didn't read your slide title. So that's probably the issue.
12:47:31 Okay, that I saw you had a previous john for picture of the experiments and then you had this one, and I said hey there's gems in this one and not in the other one.
12:47:41 Yeah. I had read your slide title that I would say oh you're going to explain that this is, we could add gems.
12:47:48 I mean that's not currently approved so.
12:47:52 Yep.
12:47:52 No problem was I didn't read what you wrote yeah and this one will be released. So I wanted to put some summary but for summary, I think I will just put this plot from Douglas.
12:48:05 Yeah, so I'll just say that expected uncertainty songs
12:48:12 on the two photon exchange production is shown here based on the young Burton our calculations, and yeah, yeah.
12:48:20 And I think that's all I have.
12:48:22 Yeah.
12:48:25 Any other questions or suggestions about know, I think this is fine.
12:48:31 No, I think this is fine. Okay. Thanks a lot. Yeah.
12:48:35 Okay.
12:48:38 Was there anything else people wanted to raise today.
12:48:48 If not, then we'll meet again.
12:48:53 Let's see what's next Monday.
12:49:04 Next Monday is the 19th.
12:49:14 And
12:49:15 yeah that's that's all fine.
12:49:18 It's we're into the APS meeting at that point, I have a talk at sort of 230 and then I'm chairing a session at
12:49:30 445 or something, but I don't know do our people busy with the APS meeting and sugary cancel next week's meeting.
12:49:42 Any preferences. I'm giving my talk next week, I guess it's after this, so we can still have it.
12:49:50 Okay.
12:49:53 You are too I think actually. Well I talk in that on Monday afternoon, right yeah that's that's what I am. Yeah, so I think we'll probably be fine on, you start the session so it's not like the right and you're, you follow me.
12:50:08 Yeah, yeah. Wait, so I'm given the dog before you do.
12:50:12 Yeah, you're talking in the GHP meeting. No no no, I might be a stock on a Sunday.
12:50:21 Know your target talk. Yes, so I should probably.
12:50:28 So, I think my talk is on Sunday session.
12:50:31 Surely, put the references to your books when when Is there a, you can do, yeah.
12:50:39 Let me quickly check.
12:50:50 use.
12:50:43 I reference yours, and.
12:50:51 And it says, and I
12:50:56 can't remember if I referenced Ethan stock.
12:50:59 Maybe not.
12:51:04 I have to check that.
12:51:07 Kim. Kim, show me just the email to the kickbacks when everyone's talking each is at every session and I strongly believe is a minus on Sunday so we should probably refer to your stock.
12:51:22 Yeah.
12:51:22 I'll send out a list of where the talks are.
12:51:27 Ok.
12:51:28 But,
12:51:31 so we'll still have the meeting next month. Next Monday.
12:51:36 And if I expect it will be very sensitive.
12:51:41 You're very short, because we won't have done anything in between then and now
12:51:49 you've got other things to work on.
12:51:54 I still underground, you finally started to work this complex gentlemen Gentlemen Chris and I forced him to implement every single component of the targets, like actual geometry.
12:52:06 Ok.
12:52:09 I will come he can be seen like in half an hour so we'll see what where he is it.
12:52:15 Okay, well maybe he'll have something to report in a week.
12:52:21 Or I can eat people presents on some level shirt. Yeah, yeah.
12:52:26 Okay. Anything else for today.
12:52:30 Oh, I have something I got an email. Oh, I'll mention this on.
12:52:37 Do we have a regular meeting this when we
12:52:43 No we don't wait, we're not meeting on Thursday.
12:52:48 However, we do have a meeting on Wednesday with the daisy Directorate.
12:52:54 I'll send out all the information to that to the TX collaboration, and you're all welcome to attend, it's, I think the main reason for this is that the research director wants to explain why we're not being invited to the daisy PRC.
12:53:16 some nice remarks about, you know, we're, we're still interested in having this come about, but there's been some delays. And related to that.
12:53:33 I heard from over today.
12:53:37 That Marcel who is in charge of the daisy testing, they have now completed all the preparations for the extracted beam test in they are vague.
12:53:51 So they've
12:53:54 put in all the beam elements and had the interlock safety they just need to get permission to run into this area by some safety committee.
12:54:26 And once that goes then they can do the extracted beam test, which is a prerequisite for them, proposing to have an extract that beam.
12:54:23 Test Facility.
12:54:25 So, so there's progress. this should have happened almost a year ago.
12:54:32 But because of Covidien one thing and the other it's, it's been delayed. So, anyway, progress, and we meet with the daisy Directorate. On Wednesday at 10 o'clock Eastern Time.