10:01:39 Okay, so, Patrick said he would be late.
10:01:48 I have pizza.
10:02:04 Let's see how are we missing,
10:02:08 where she on.
10:02:56 Do you know if Eon is planning to come today, I'll send them a meeting, you may be recovering from partying too hard from his birthday yesterday. Ah, yes, let's not let them forget that.
10:03:40 Okay, why don't we get started, you men do anything you want to report. Yeah.
10:03:49 Okay.
10:03:50 I just want to update, give some updates about my analysis.
10:03:56 So, can you see my screen.
10:03:58 Yep. Yeah.
10:04:01 These are the several variables I want to match between them, data and simulation. On the left, it's fi and Seta, which is acceptance that in plane and out of plane angle of acceptance.
10:04:13 On the right is delta P.
10:04:16 The difference between that measure momentum and central reference moments.
10:04:31 Those are the qualities I can match pretty well with the simulation, and that it between the simulation and data, both in beer absolute position, and the, the momentum and angle resolution.
10:04:44 However,
10:04:44 However, if I do that match them first.
10:04:49 This is on the left, you will see this is what I get for delta, delta t is the energy of the electron measured compared to.
10:05:04 So, in order to match. Delta Ei have to exaggerate. And the angular resolution by a lot that I can get the rights clock here. So on the left, those plots are where I match the angular resolution to the angle acceptance.
10:05:24 On the right is where I changed angular resolution and assimilation to force it to have a matching delta t spectrum.
10:05:33 So I think the reason behind this is that the transformation matrix, I have in the simulation is not exactly what happens in reality. So, in order to settle this.
10:05:48 I believe we need to do a measurement of field mapping measurements of the spectrometer.
10:05:54 They have to do that in order for me to figure out why this is happening.
10:06:01 And
10:06:01 so.
10:06:04 Is that likely to happen.
10:06:07 And it's not a very complicated measurements, but they have to move the target number. They have to have lights shining into them spectrometer, to do a mapping.
10:06:19 But once they started a maximum and it's like a one day project.
10:06:23 So currently, I just don't know if there's any time in their schedule, they can fit in such a measurement, and I will talk to them. So, this is on the top is this is what I got on a cross section.
10:06:43 I think several weeks ago.
10:06:46 Then, in order to understand such.
10:06:49 So, I so dear is complications between March and February how we normalize them.
10:07:00 And yours, we observe something weird as 15 degrees for spectrometer a word for spectrometer be when it's quite close to spectrometer, a, we think there might be some interference between the magnetic field.
10:07:13 So, I focused more on the February runs, when we covered 20 to 35 degrees, the, the rights for orange dots. So I'm trying to understand why I see a slight deviation.
10:07:29 On the larger two angles. So I focus on them in a, you know, bottom for clots
10:07:39 And in my analysis, the cuts I said, I make set will cut out some last events is on the vertex reconstruction, because we have a guest target. We have a lot of guests sets, very far upstream downstream and cost the central NSP to be wider.
10:08:02 So that's causing troubles for me to to cancel out the backgrounds.
10:08:10 In a histogram, using the high low and low flow. So, I have to make a cut to keep only the set.
10:08:21 Events set happens and the center of the target chamber. So, if I change the width of the cut on, I put on the central vertex.
10:08:30 On a bottom I showed four plots, with cuts said I said at five sigma for sigma, sigma and two sigma from the central Berta as central of the target. And you can see that a deer is very slight change of the relative value on a cross section, especially
10:08:51 when you compare the largest your ankles, but the change here from this couch is relatively small compared to the current disagreements. So that's the cut I put here is not swimming mean issue behind the disagreement between the smaller two angles and
10:09:11 larger triangles. So I discussed with young about this. And right now, the only thing we can think about is that, because our measurements, the readings for the spectrometer angle.
10:09:27 It's not like very accurate and, and certainly the smallest number we can show in the reading is point one degree.
10:09:37 And the steps in this reading is like slightly larger than point one degrees. So we have at least uncertainty of point one degree, and in the earlier study when, when the minds people trying to map.
10:09:53 reading angles and the actual angle of the spectrometer.
10:09:56 We see a de de saw deviation on the order of one of five degrees, which can cause if like if.
10:10:07 So if we measure one angle for all five degrees smaller there should be and another angle pan or five degrees larger than it could be, it should be. We can have close to 1% error on the measurements on the cross section estimation.
10:10:26 So, we believe we suspect, set the facts I see here across these four angles might come from the actual angle of the spectrometer readings, the angle reading of the spectrometers.
10:10:40 So, when you wanted his experiments, the way he tackled this is that he put a variable on a spectrometer, and try to opt out a spectrometer angle and try to optimize this angle by using a minimizer so that the result.
10:10:59 Minimize the chi square of the several parameters are the several histograms I mentioned earlier.
10:11:06 However, given that I don't have a very clear idea of the resolution in the angle.
10:11:25 It's a little bit challenging for me to do it right now I'm trying to do it, and the minimizing program is running relatively slow because it has multiple degrees of freedom to optimize, so I still have a running on a cluster, but like convergent relatively
10:11:31 slow. So, that's all I have right now.
10:11:37 I sent an email earlier last week to the minds of people asking them if we have can have a discussion about what I got here and if they can do measurements to matching measurement for me.
10:11:51 So, I will give a presentation next Monday.
10:11:55 In a one seminar about all I have here right now and information, I sometimes meet and discuss with the experts there, and we'll see how we will proceed.
10:12:11 Okay.
10:12:11 Sounds good. I have a question. Yeah.
10:12:16 So when I look at any one of these panels.
10:12:19 So you park your spectrometer at some angle. How wide is the angular acceptance
10:12:28 acceptance, I think, in the impact and go It is
10:12:34 20 minute radius.
10:12:38 I guess what I'm asking is like.
10:12:41 So Yon has this incredibly
10:12:46 fine resolution and an angle, are they all one setting, or are they just bins across the acceptance of the one setting their individual settings. So each of these you move the angle ganas.
10:13:00 Yes.
10:13:01 Okay, but they are overlapping so the the acceptance is bigger than the distance between the points.
10:13:08 So, so I move it.
10:13:12 And we want what I see is that the Lord, two angles from Yemen 2025 are pretty much in agreement with Yun but then actually yawns data goes down at 30, and humans goes up for if I'm you know just cruising looking at the data.
10:13:26 Yeah.
10:13:29 One and a half percent one to one and a half percent level. Yeah, yeah, and the match one is then down again. So on average, it's the same but if you just fit the line right it would be probably on minds, but
10:13:43 If you just fit the line right it would be probably on mines, but it's this job this week is strange right this jump up.
10:13:48 Yeah.
10:13:53 Yeah, I don't know, you know what strange or what isn't but that's the kind of main feature I see in the data is that Yon starts at 10 down beyond 30 degrees and yours is jumping up.
10:14:07 So,
10:14:11 yeah, so there's still like uncertainty in the angle so.
10:14:30 Secondly, the reason behind this. And I said, the thing I'm trying to solve. Well, wait a minute, on certainly in the A.
10:14:25 How can I make the thing, how can that explain it.
10:14:28 So, we don't measure, we have the angle down 2.1 degrees. But the uncertainty is slightly larger than that we, the reading we have on the angle during the experiment is not accurate 2.1 degrees, compared to the data, how is that going to change the data,
10:14:51 I mean, because I changed the cross on, because this is like the cross section of the experiment over the same a dipole. So it depends on where I choose the central angle, I put it into the standard article.
10:15:17 So if I change the angle, a tiny bit.
10:15:24 The cross section of the standard hypo will also change its value.
10:15:41 But I mean these are exactly the same respect Frommer's Yon us so unless it developed some.
10:15:51 So, yawns analysis. I think he optimize the angle a little bit.
10:15:56 Using fits in. in the data analysis so you change the angle.
10:16:01 These are so God stayed are not the measured angle there are some No, I left the angle as is, I only change DFLVV the momentum, I think, for be.
10:16:14 OK, So the problem is that we didn't have a working and amount at that time. Right. And the only way to like get the angle and the energy right, is you have to have one to get the other.
10:16:29 So I had to believe the angle.
10:16:32 The problem is that between my experiment and this experiment. Some accidents happened. So, some spectrometers run into things.
10:16:40 So, so the the kingpin might have moved.
10:16:44 So, so it's not, it's not necessarily that if it was good for me it's the same now it might have moved.
10:16:55 I mean, I mean, in principle of the different factors will drop right so so I mean you could maybe take more constant, compared to the dipole and let's let's but what period maybe predicts, but it should not rise by half a percent more.
10:17:12 that I would take, I mean, just let's just focus on on humans data I mean what I would say is that, it says that, you know, it's constant 99.9975 or something that's what I would take out, I would just average the four points and say that it, you know,
10:17:38 you can always put, put spins on things but it's basically the dipole within a very small match data doesn't fit, by the much data that something else yeah I don't know, but I'm just taking, I think we've got to focus on something and try and explain
10:17:55 it, four points that you have, or very close to the dipole dipole, you know, within our with it. Obviously, or, you know, but that's, I mean trying to put slugs on it.
10:18:07 I don't know that that is justified.
10:18:13 Okay, good.
10:18:19 Anything else you men are young,
10:18:26 nothing, nothing from me.
10:18:27 Okay. Um, so, for tea packs.
10:18:34 Over contacted me this morning we had a video chat.
10:18:40 Evidently, Daisy is in some financial difficulty, at the moment, because they had a report show on Petra for, and it's going to be
10:18:58 way over budget.
10:19:02 And so there is plans to cut back on various things.
10:19:11 And the other thing is is that the city of Hamburg had agreed to put in
10:19:22 sort of 2 million euros.
10:19:26 Whereas, they Petra for with 20 million euros.
10:19:32 And, but then they burn just minister Miriam,
10:19:40 which is the federal government did not come up with the difference like they were expected to.
10:19:49 So, Daisy's in a bit of a bind at the moment. And so they're reducing budgets, where they can.
10:20:04 And we'll have to see how that plays out there still supporting TX and principles principle, but they again want to make sure that it's not advertised as a new experiment, because that would be a flag that could immediately get cut.
10:20:28 But it's remains a test beam proposal.
10:20:36 And like I said that that was fine with us, but they are still a delay in doing the work necessary to have an extract that beam line.
10:20:48 Daisy so we were up here as far as that goes.
10:20:54 So for the, for the APS meeting this means that the TEDx talks should probably be formulated the right way then. Yeah, that's what I was getting at the, you should not say that this is a separate experiment, but you should stress that it's a
10:21:19 you know a test being run
10:21:23 or a test beam experiment. I think
10:21:28 the other thing that came up out of the meeting was that the new or the acting research director cheese banca would like to have a meeting with us.
10:21:43 And so it's been suggested that
10:21:48 we have a you know a very brief meeting and he just wants to sort of explain the situation and give recommendations on how we should proceed. So he suggested that we meet next Wednesday.
10:22:02 So that's the 14th at 16 hours.
10:22:09 German time which is 10 o'clock, our time.
10:22:14 So hopefully people can attend that. and we have the defects meeting.
10:22:22 This Thursday at 1215.
10:22:25 And so I'll repeat all this at that meeting and stress that people should
10:22:33 not advertise check tape acts as a separate experiment.
10:22:40 You know right for the killing.
10:22:43 But that it's a, an experiment to use on a test Spain facility at Daisy it's
10:22:53 okay so other than that, I don't have anything yeah I teach at 10 on Wednesday, so I won't be able to join.
10:23:03 You want me to try and change it.
10:23:12 Just go ahead. I mean, you know, I think the only this is too surprising. So, you know, we're just going to have to bide our time wait patiently like we do with a lot of extra time.
10:23:16 Yeah, yeah, yeah that's theme, you know, when I spoke for about an hour and he didn't seem unduly concerned about this, but it's just something we have to wait and see how it goes, I think they've always viewed it as a test expert beam experiment I don't
10:23:32 think that's anything No, maybe we we have tried to make it something different but I think that that is always what it's been I think from Daisy. So, yeah, I think we just as you say have to be careful how we.
10:23:44 Yeah.
10:23:46 And the other thing for for t Beck's is I have written to Peter Blunden Andre often as of.
10:24:04 Mark Vander Hagen, and they've all agreed to write letters and send it off before April 21. And those Cuoco to to tease as the acting research director, and also to fill burl is the chair of the PRC and Nigel Glover the PRC member that was tasked with
10:24:21 reviewing feedbacks, so
10:24:27 I haven't seen what they've written or I don't even know if they've written it yet I said, it should be delivered by the 21st. So, okay, that's all I had.
10:24:41 Anything on dark light.
10:24:45 We heard anything from our, etc.
10:24:55 No, there was some email from Jeff yesterday about. There's some kind of long range planning process in Canada, that they've got it sounds like they're going to try and get it on the agenda for discussions and Tom meeting or something.
10:25:07 Okay. So I think that's, that's good. Yeah, that sounds fine.
10:25:12 So, I guess we've got the G minus two result.
10:25:18 When is it tomorrow. yeah tomorrow. Yeah. Roll the drums for that.
10:25:25 Yeah. So what's the bet, more or less the same.
10:25:33 I don't know, I think it will have shrunk so that the significance is the same.
10:25:39 Okay, yeah, maybe, I don't know I honestly have no clue.
10:25:44 I guess it's nice to be a smaller uncertainty is that right i mean that's better than what they had before, right, only slightly Is it okay I thought it was gonna but, I mean, so if they mentioned the same thing, you can combine them and yeah, right.
10:25:59 So,
10:26:02 yeah,
10:26:06 I somehow, don't get the sense that it's a dramatically different result resolved but I could be wrong. I mean they're just maybe they're good being tight lipped.
10:26:16 Exactly.
10:26:17 They have three talks in three days on this.
10:26:23 Yeah. So, they are certainly hitting the race, the airwaves at the at the mess of standard procedure, same time, all they have to I mean they've been sitting on this thing for years.
10:26:36 Now, this is like they have to do that and let a what they have I think they've worked on this for I don't know how long I think the to the p amp l resolved is late 2006 or something.
10:26:51 So it's,
10:26:53 it's been a long road.
10:26:59 What time tomorrow does it get unveiled, what's the time think it's 1010 o'clock or nine, maybe nine must be wrong.
10:27:08 I said something to the dark light list right you saw that. Yeah, yeah, no, I have it somewhere.
10:27:20 Yeah, no 11am.
10:27:24 That's that. Chicago time.
10:27:28 So it's 11 in New York time. And if no that's Wednesday. 10 at on Thursday at seven and 11 on Friday, you know, talks.
10:27:44 Good. Alright, well, give us some.
10:27:52 Get off, get out of bed tomorrow.
10:27:56 Okay, um, Anything on. Oh, I know Richard I wanted to ask you is there.
10:28:02 I was trying to find an EIC user group meeting mailing list.
10:28:11 Well, the. Yeah, there's certainly exists. I'm not sure anybody can send stuff to it randomly it's the home. Have you gone to the homepage EICUG. org.
10:28:27 I mean I saw last time I sent it to a life cycle. Yeah.
10:28:28 Well that's that's as Phoenix or Ricardo fault file, so he he made the ice user group pages of the conferences, at least at that point so that was the original plan.
10:28:41 There's a woman Rachel I think the NL does.
10:28:47 This is on what streaming read of yeah I wanted to advertise the streaming readout.
10:28:53 Thomas already coming he's kind of the guy in charge of detectors, on, on the steering committee so ask him to have it distributed. Yeah, okay.
10:29:06 Yeah.
10:29:07 Yeah. So there's the streaming readout workshop at the end of the month, 28 to the 30th.
10:29:15 And, yeah, three day, meeting the Indigo page is up. People can register online for the if they won't want to attend.
10:29:30 And you can log in and if you have an MIT, address, and I st is still, even though we had a successful test of the. edu Rome credentials working to get you in there.
10:29:51 Still dithering over making it work that way on the main Indigo site. So I think by now we just have to say okay just register and you have to approve them.
10:30:01 Yeah, yeah.
10:30:03 Well, I can approve everyone that's, and everyone can see the, the page.
10:30:10 It's just that they won't be able to upload their talks that the convenience will have to collect the talks and upload it.
10:30:20 It can make them make normal and equal accounts.
10:30:23 Now no okay but you only if you're an MIT address or MIT email.
10:30:34 It's ridiculous. So anyway I got a mail, I talked to Brian at not Brian, Dave,
10:30:44 ist, and he says what does he say I'm working on the production configuration now I'll let you know when it's ready to test. So,
10:30:55 maybe it only takes him a little, a few days, but that's the situation at the moment
10:31:04 it comes down to it, if they can mail talks to me or you or Yon or Chris gray voce yen. Jen, or Martin, and you know you've all got guest accounts.
10:31:23 Okay.
10:31:25 Yeah, so, Jay, for a second. Yeah, yeah. So, I'm gonna you port of entry or not, or, or, technically I am so I'm on it, but I just, I mean it's nothing, I don't know.
10:31:40 So we had to work there was a simulations workshop on Friday I think attended up till noon, and I thought it was.
10:31:49 It was a huge attendance, it was over 70 people.
10:31:52 So, I guess, what we have to do is understand how we can contribute to this in particular in the simulations.
10:32:02 So, I know, Igor, and Zhang we're looking at it.
10:32:09 And it beats you contacted me about the tagging.
10:32:14 So I guess somehow.
10:32:17 We have to kind of find a focus of of what we want to contribute.
10:32:22 I mean I have my own ideas but it's really a question of running simulation codes.
10:32:32 So, I mean I'd be interested to hear from from Igor leads energizing what their thoughts are on us.
10:32:44 So, What a plan, so that for for this paper with double talking to finish this paper and publish it, just to focus on the new advantage that we don't need to do all this modeling of a new attorney helium three to took to get to all this structure functions
10:33:11 from the new throne. So, the, the, the, from the double tagging me can actually measure directly the momentum of the new turn inside the inside the new clothes.
10:33:25 So we want to focus on this.
10:33:32 This fact in the paper. And I think we will then focus a little bit on our reach of of the structure function, etc.
10:33:44 And I don't know.
10:33:59 I think we will we will then switch to do Ah, okay. Yeah you shared me the overly file I haven't had a chance to look at it yet but I will take a look at it. So yeah, so.
10:34:02 Okay, that sounds good. That sounds reasonable. Oh. Finally, writing up the yellow report and then switching that way. Yeah, something what we did for the yellow report but now focusing more on hn with real mean, more, more detailed simulation because
10:34:20 for the yellow report we use
10:34:35 EIC smear the think what Korea was talking about. So for the fast simulation. So, for the paper we started with Yossi smear. But then we switched to ESC route.
10:34:44 But yes your route is, it's more advanced and it focused more on the detectors in, in, in the far forward region. But, unfortunately, ESC route is actually did it will not be developed anymore.
10:35:20 So, for the HIV are switching to fund for all. Yeah, that was the religious conversion, as I guess. So yeah, now we are waiting that dn, right. What is the appropriately.
10:35:23 That was a joke that was a joke. It's. Yeah, okay. They are tutorials there.
10:35:28 But I mean, just to be clear, so you're talking about safer for AI see you're talking about a polarized electron on a polarized helium three iron beam, and you're detecting the scattered electron and you're detecting then maybe neutrons and protons in
10:35:44 the Ford region is that yes. Okay, in the meeting covert region, and then, So we can do DC inclusively with every.
10:35:56 I mean, not detect anything else.
10:35:59 We can also do the same inclusive, either about polar by charged by own source to charge cables, yeah exactly in the main that that would be the main detector the descent Yes, but this was being done with the tagging is in the forward tagging is the before.
10:36:17 Okay, now that's great that's great i like that. I mean, it brings together polarized helium three which we know and love and also the forward detection which I actually think is going probably going to be a unique focus of.
10:36:37 Ha.
10:36:32 Okay, good.
10:36:37 Um, Igor I know you were trying to get some clothes running after Friday.
10:37:00 How do you yeah I'm installing this band for all the, have some progress in some type of environment I successfully implemented the code but still a I'm in the middle of it.
10:36:57 I contract yesterday with gene from nll to get an account.
10:37:18 So I believe by the end of this week I will be able to start running some tutorials, understand
10:37:13 how this works.
10:37:16 Now that's great. I mean I'm as you know we've talked I mean I'm particularly interested in in just understanding if you have on polarized electron on non polarized proton, and probably very the proton energies how, how we can actually check the reaction
10:37:32 mechanism for for certainly inclusive and, and also deeply virtually VCs and Amazon pine odd for sure.
10:37:42 In the first running of of the IC.
10:37:46 Hopefully Ajay.
10:37:47 Yeah, this is a plan, but I think what what there is interesting st also too, because we are preparing for the detector proposal. So maybe some of the understanding reaction mechanisms can guide us to select the nose a declarative resolution on maybe
10:38:04 the focus on the different subsystem into the technical. Yeah, Yeah, no, absolutely. I mean, as we as we drill deeper into this I think that's exactly right.
10:38:18 Yeah, but I mean, I am I'm assuming that the detector will measure, you know, the VCs and the blue virtual pineapple. I mean it's got to be I mean, I'm certain that that's part of it now.
10:38:30 Obviously we have to check the specs but I mean that's certainly mainstream science program and all the ice detectors.
10:38:39 But I think it's more of a strategy that we want to take data in the first running to kind of understand the reaction mechanism which then guides the physics program.
10:38:48 That's at least my, my point of view, you know, I don't think it's. Hopefully it's not, you know, it's probably a couple of weeks running, I don't know.
10:38:58 I mean it's not.
10:39:01 It's kind of trying to do what it's aiming to do what you've been trying to do with with class six.
10:39:10 Yeah, with much higher energy better statistics. Hopefully yeah I mean, if we run this thing. It's like takes two years to measure.
10:39:20 We got a problem.
10:39:22 But I'm hoping just count, good, that's good.
10:39:28 Zhang Zhang Have you any thoughts on this, on the workshop or.
10:39:31 Yeah, I think, um, it looks to me that each subgroup is is going to have, like, people.
10:40:00 People are forming the subgroups in their recent days, weeks, I mean, so perhaps we want to think about which channel or which subgroup we want to contribute to then I believe there will be specific, simulation goals and tasks for different on different
10:40:16 channels. So in that way maybe we will be more clear like what kind of simulation we all like generators.
10:40:26 Yeah, until configurations, we want to,
10:40:32 to go is.
10:40:35 Yeah, no, I think that's right i think you know, based on our present interests and our, it's really class, well driven I would say they are polarized helium three along the lines that have eat says working.
10:40:47 And then the deeply virtual processes that, you know, we've been working on that ego starting to look at so I I mean I would, I think those two areas seemed to me, they're there.
10:41:01 Well, you know, they're completely aligned with what we're doing anyway. And so, in terms of working groups, I think we probably should be involved in those.
10:41:15 Does that does that sound reasonable.
10:41:17 Yeah, yeah.
10:41:18 And you know who does wider when you know we have to figure out, I think what we need to talk to or as well because of course he has a sizable group, maybe we need, we probably need a weekly at a meeting, you know, I mean, I know we don't need nobody
10:41:32 wants more meetings but actually if we're going to we're going to make progress on this thing and the short timescale I think we do need to just the people not everybody here because, but just the people who would be working on it would meet criteria
10:41:50 strategize make a list.
10:41:52 Was that song reasonable.
10:41:55 Yeah, I think so.
10:41:58 And, yeah, that's I think the physics, I see the art. You know I know they're streaming readout and there's calorie imagery and all other thing, you know, but I think in terms of the physics.
10:42:11 I just see those two areas is something that we will certainly I would like to pursue I think as I said they're, they're well aligned what we're doing.
10:42:20 I think they you know they drive big.
10:42:24 I think the the deeply virtual polarized helium three the forward detection, these are actually driving major thrust of the, of the proposal I believe the end.
10:42:34 Okay, sounds good.
10:42:36 So I guess we'll be by next week we'll try and have more of a plan of how we want to work on this regularly.
10:42:49 Yeah, always saying that the feedback after Friday was really positive, there are a lot of people joining up want to do it. I mean the the IP six outfit is how running elections or something or writing bylaws so
10:43:07 we'll see. Anyway, I think ipv6 has a lot of international push.
10:43:14 Uh huh. Yeah.
10:43:19 But I have to say I was really repulsed by the IP six meeting.
10:43:27 I think the discussion about whether it's exclusive or not if you work there was absolutely wrong. All right, well, let's not rubbish them. I mean, good luck to them but let's try and make something out of Ajay, I mean I think that's our, our purpose
10:43:44 but yeah we'll see.
10:43:46 I'm sure we'll have our own fight, I mean Sony progress is fighting Sony broken doesn't have made it.
10:43:54 Yeah, there's Berkeley, I think, is waiting a lot of people are waiting so I mean I like the idea of working out some physics that's well aligned with what we're doing.
10:44:02 I actually like that i think that's good for us all, particularly young people going forward you know as you as you make careers, I think it's good that what you're doing with the ice is it kind of has a basis in the present.
10:44:16 I think that's that's actually a problem, generally, right, the participation by young people. So, I mean, maybe below, what I am right now. If you are a student right, there's no way you can ride your PhD thesis on it.
10:44:31 Right. Maybe I'm theory but not going to experiment.
10:44:36 Exactly. No, I mean that's the whole reason we joined class 12 was existing experiment that couples the ice I mean that's that was the reason.
10:44:57 And, and even, I mean, even for for somebody, I mean, a postdoc okay a postdoc and maybe spent a couple of percent of his time, or her time on on the ice.
10:45:00 Right.
10:45:00 But you have to get something out to you, you've got your job so you're made but you know for postdocs looking to hire to get hired.
10:45:09 I think having some EIC credentials going forward will be important even like when you, when you interview the IC was still kind of in dreamland, it's a real project right now with that no I agree the problem hearing I had so the postdoc, right, it's
10:45:43 the test to me I see it's attached to somehow. We'll, we'll find out by here that goes Sean is, is, is less fundamentalist on that issue than it used to be but we'll, we'll see.
10:45:37 Okay.
10:45:37 I don't know you know I think, how is this proposal, how are these proposals going to get written this young people's I'm not going to be exactly that's my point.
10:45:46 Night. Having fun for all you know it's going to be people will do this so that's exactly my point right that's Yeah, no problem right now, if there was a, there wasn't a part of it from the software marketing group.
10:46:00 Right. And, and one of the question was what like carrier stage, are you in was very much skewed to like Professor level. Right. And that's really unnatural for any any project right, you always have your professors, a lot more students, right, because
10:46:18 that's, I mean, that's how we do things, it's program for failure if it's
10:46:24 not, but I think look, you, you're an S Phoenix were in class 12 I mean I think we have consciously made these decisions because they do lead in some pretty dark way Pac, and I think we, you know, the things that if pizza and Igor and judging talked about
10:46:43 are directly related to what they're doing, you know, with real data. So I think, I think we're fine.
10:46:51 Our group I mean, and so I think we should just get going and.
10:46:57 And I don't know I don't know what the rest of the world will go you know that's that's their problem but I mean I put in something for Tejas to push on last, I don't know, September.
10:47:16 Yeah, but haven't heard anything for what, what was it fun, but at this project and
10:47:16 it should be something he likes.
10:47:20 I don't know.
10:47:22 Good, Yeah, we'll see. Alright so, that was good.
10:47:42 So I think we're ready for class 12 I was anything else. Yeah, I think so, yeah, let's sign off then. Thank you. All right. Okay.
10:47:40 So by the time.
10:47:46 So, let's see, do the rounds stints at, Bobby.
10:47:54 Did you have any updates.
10:47:56 Yeah,
10:47:59 actually. So, if you don't mind if I can show it as a fighter to.
10:48:04 Absolutely. This Bobby and judging you're talking tomorrow at noon is that right.
10:48:17 meeting, notice from yeah I just, it will happen and it's always last minute but there'll be a link sent around Volker runs this thing and it's blue jeans so I have the ability to make a blue jeans account reservation.
10:48:39 I mean, So, I assume it's going to happen.
10:48:45 Okay, sure.
10:48:45 Sorry. So, Bobby. You go ahead. Yeah, sure. Yeah, so, by the way I am. You know, I'm trying to scale my talk relative to house I've excellent yesterday, I think, you know, if I interesting book talk for an hour tomorrow that will be a little taxing for
10:49:00 everyone so I'll shoot for half an hour of total time right so but ego, are you there.
10:49:08 Yes, I'm here. Okay, cool.
10:49:10 So this is kind of actually just a continuation of a discussion, sorry, this isn't a formal presentation, you know obviously we'll be discussing stuff tomorrow but I just wanted to kind of bring this up with while I have you on the line.
10:49:23 So, it's really about other things. So in the past couple weeks.
10:49:29 I ran a recent about 80 million events through, through the simulation software package and I was basically really just focusing on one kinematic Ben, at least in Q squared and x, because I had tried simulating the whole face space and things didn't work
10:49:48 out very well for me.
10:49:51 Anyways, the point you know what I'm trying to do here is get an acceptance correction so this is the by distribution so just number of events, in particular, you know, five been in this basically in this range corresponding to European x between about
10:50:06 point three 1.4 and Q scrape between about three and three and a half and anyway so what I'm trying to get at is acceptance correction for this data set.
10:50:17 What I brought up to, Igor yesterday was this so the red is some generated events and the black is what correspondingly gets reconstructed and identified as gv pie not exclusive event.
10:50:33 And when I'm at a relatively low t. So between point two and point three.
10:50:42 I guess I guess what I was concerned about was that here, if you're looking over fi, you get data in all five mins from zero degree it's up to 360 degrees or again fi is not like loud fi it's angle between laptop and had drone planes.
10:51:01 But when you increase tu really a cut off towards the end of, you know at that low fat, low angle of your laptop hadn't planned and high end high end goal, which is basically just your plans being close together, one way or the other.
10:51:12 And I was basically confused about this and he were just kind of told me to make a bunch of pots of the distribution so I did and I won't bore that now but I what I did want to show is this one is this is what I think is the probably the relevant one
10:51:25 I spent so the question that I had is basically.
10:51:41 Are we dropping events so at the end on the edges because of like geometrical acceptance, or is it something going wrong with your construction because I can imagine if the plans are close together. The particles aren't getting reconstructed correctly
10:51:42 something like this, but I'm.
10:51:46 So this is a plot of the horizontal axis is the electron hadron angle, and the vertical axis is the proton lab angle.
10:51:57 And as a reminder, we I'm only looking at events where the proton was attached to the four detector, which is somewhere around the 40 degree marker so.
10:52:10 So it has a really high so this is what was generated by the generator. So, as you get close in 100 angle so either lo fi or hi fi, you start getting most of your events are basically generated a high protein angle.
10:52:27 So, I think you're what I'm basically saying is that I think what you're what you were suggesting is correct that it's a geometrical acceptance issue and if the central detector was working we probably see these events more.
10:52:39 Yeah. Okay, so see a movie so single is this way when you are correct in ku for your acceptance, you need to eliminate from the simulation us as His ages, because they are not pointing fingers at detectives it's,
10:52:59 yeah i mean i think it's somewhere you need a geometrical acceptance factor right and I get it.
10:53:04 I'm not sure exactly where the bus. That's place for that to show up is but, yeah, I understand what you're saying.
10:53:14 So anyways, besides this I'm just kind of compiling some work into a presentation for tomorrow and see how that goes.
10:53:24 Yeah, that looks good.
10:53:25 Yeah, just take, take a few slides introduce the subject, you know, generally like you're the fireman diagram and stuff like that. Absolutely.
10:53:34 It's useful to take your time I think we should have plenty it's I think it's just you and judging tomorrow social.
10:53:41 Yep. Sounds great.
10:53:44 Same back.
10:53:48 The update.
10:53:48 Yes, I submitted analysis notes to cluster of collaboration yesterday.
10:53:58 So,
10:53:58 I changed my agile was Christian after as usual direction yesterday. sorry last week.
10:54:07 Uh huh.
10:54:08 So good. Yeah, the point.
10:54:12 Last Wednesday was that the reconstruction principle should affect a correction, and then.
10:54:21 So we correct a magnitude the first, because the reconstruction approach when Gus and the way that we reconstruct to magnitude the first, and then the direction, said if I, depending on the, the field map.
10:54:37 So, so, yeah, I can listen FX hundred or go into comments so I did correction.
10:54:50 Click again.
10:55:00 So I had to send this analysis knows to collaboration so I made a very very quick date.
10:55:00 Sure, It's good. It's better to share the screen.
10:55:10 This one.
10:55:12 Sorry.
10:55:16 Slowly.
10:55:17 Let's get him on it.
10:55:20 Now this is one slide summary of our version of patterns like for Angeles.
10:55:28 The first develop plots are about to momentum friction and this second 12 plots are about Korengal correction
10:55:38 here should be fine.
10:55:41 Okay.
10:55:44 Yep, severe asthma anger correction, the dotted line.
10:55:51 The Delta means that difference of generated minus are constructed.
10:56:03 So they some at Ford high PR angle they have huge correction so it's because the actually the four sector boundaries are on 40 degrees for protein so so above that the requests are some qualities are really low, but
10:56:25 this is depending on whether we want to save this event and corrected, or is assuming all the events of the 40 degrees, but I was just that is the question is around 20 degrees, I want to save the event and then corrected.
10:56:46 And I applied a This was from simulation, and then I apply description to the data.
10:56:53 And then I didn't find any for any further need of momentum correction, but I looked at the semester, Vp vs P.
10:57:06 So, this is from Pedro data and pleasure data is experimented very clean. But when you look at the mister mister dp versus p Breton momentum before correction, there is division around at law and as you have more momentum.
10:57:22 But after this energy the last question, dotted line is pilot pilot Pedro ms skirt.
10:57:30 And then the missing Mr. Up versus momentum Africa momentum looks very nice. So,
10:57:41 all there could be another moment to correction for reconstruction based on. After this, but uh, I'm fine any issue with this event on there was an issue.
10:57:56 And then I applies the same football mentioned Christian and
10:58:01 this is this cluster variable for the mending the black one is
10:58:08 visit from the data, after correction and the one written exclamation of delicious and do pleasure assimilation
10:58:17 is a better agreement before the question, but there is still some disagreement chat, especially at what angle which is the gamma detected is actually the photon detected, and detection tech person and fortune reconstructed is actually the missing missing
10:58:40 momentum record from the momentum of EP pinner.
10:58:46 So,
10:58:49 I think smearing issue is just at simulation. So, I wonder if simile any smearing should help preserve this discrepancy because I'm seeing for any disk distribution I'm seeing the with is smaller than the first of all listen is born with that for the
10:59:12 experimental data
10:59:21 stuff to share.
10:59:28 Well, so, that looks good.
10:59:32 So this analysis note. So what's the process now you send it to somebody and they'll review it or something and, and this is for a PSA pro procedure, I send it, send it to Marco, contemporary go.
10:59:47 And then they would review with as a, as a working group, and then probably they won't say, I cannot say bridging this gap aspect is kind of pressure.
11:00:01 And then I have a dry run, probably next next Thursday.
11:00:09 So so yeah I understand for the APS, but in terms of the analysis going forward, each time. Do you have a separate analysis node or do you update the same node or how does this work yeah okay if I want to polish up a sorry they want they call Polish at
11:00:25 public.
11:00:28 Any conference or like APS I should. Yes.
11:00:32 I should write a new one.
11:00:34 I want to release a new Richard, but I guess this is a new research.
11:00:39 Since the DMP last fall, so I know I'm just understand it. I mean these are these are not cross sections yet these are just this kinematic distributions, I guess.
11:00:50 Right, right. Yeah, but at some point hopefully in the not too distant future, you'll actually have cross section. Well, I have such thing too, but I didn't figure out the number of events of simulation, or are too small so it's not good for simulation.
11:01:11 My attempts is to.
11:01:18 per estimated So, doesn't it. Yeah, it doesn't get translated into cross section for now.
11:01:21 But actually I have code for that too. So once this Malaysian is ready probably I can try that. Okay, good.
11:01:29 Well, it's just like you can drop this right into your thesis.
11:01:33 Now exactly that's what I meant.
11:01:37 I know you I know you want to finish.
11:01:44 And we want to stop you. We want to stand in your way.
11:01:49 Good.
11:01:51 So you guys going to do an update. Yeah.
11:01:56 I think I'm going to give a very brief short presentation tomorrow and me share my slice.
11:02:11 Yeah, basically, I will be looking more for to hearing about people's comments and suggestions about what's like how to
11:02:26 like the past. The past ahead. So basically, here is a configuration of the simulation, the configuration of the BMI and also the target. So I, I did the study for two different setups one is, we still forward have Tiger own and the second is we look
11:03:00 Tiger off. And I obtained the drift chamber occupancy rates for each. And for the three regions of the chamber.
11:03:05 So basically the race.
11:03:07 The or for below for 4%, the highest is in Region One. And my understanding is that our criteria is to make sure that is, is no longer than four persons, but I think I need some input for like other
11:03:36 other primaries of factors we want to look at and analysis, and to optimize for the next. I also have this distribution for the RR versus the vertex distributions.
11:03:58 Basically, you will see this highlighted regions, they correspond to the features such as the target the tungsten shields. We have different shielding configurations for the FTL and ft off, basically, you can you can tell from this visualizations.
11:04:23 So, and also this is the Miro of the highest record shank of.
11:04:34 So I would be very interested in hearing about people's comments or suggestions tomorrow about like what
11:04:49 what people will be interested in. In this study, as, as the next step for my for my work on this. This task.
11:05:01 Yeah, that looks good, um, did you want to include something on the.
11:05:09 Yeah on the computing yeah I'm thinking about that.
11:05:14 Yeah, I can, I can have to be very long but just that, you know, I think, was it six.
11:05:25 So many 320 cores wasn't it I think and a petabyte of the desk and that is that you know just just to kind of give them an update on that.
11:05:36 Recent okay the reason that the course familiar with what the students have done over the last few years in terms with Maori. And you can just kind of build on that and say that we install hardware at MIT and we're, it's I mean you can report on it, you