WEBVTT 1 00:00:03.210 --> 00:00:09.450 Matthew Citron: So our first speaker is from fazer i'm pretty are you there. 2 00:00:09.599 --> 00:00:11.670 Jordi Sabater: yeah i'm here can you hear me. 3 00:00:13.259 --> 00:00:15.900 Matthew Citron: Yes, Okay, so if you can predict yes. 4 00:00:17.760 --> 00:00:19.710 Jordi Sabater: You should be able to see my slides now right. 5 00:00:20.670 --> 00:00:20.910 yeah. 6 00:00:22.080 --> 00:00:24.270 Jordi Sabater: I should be able to see me now as well. 7 00:00:24.780 --> 00:00:27.270 Jordi Sabater: Okay, all right, should I start. 8 00:00:28.800 --> 00:00:29.550 Matthew Citron: Sure, thank you. 9 00:00:29.610 --> 00:00:30.270 Jordi Sabater: yeah okay. 10 00:00:31.170 --> 00:00:39.750 Jordi Sabater: yeah so hi everyone i'm dirty and I will be talking about the titanium physics you knows the came to do photo and events with a face or upgrade to shower. 11 00:00:42.690 --> 00:00:50.940 Jordi Sabater: So, as you may know, on us Carla already mentioned in this first logged in the first day of the workshop they mean the thickness of the lsc last time momentum particles in the transverse plane. 12 00:00:51.990 --> 00:01:10.230 Jordi Sabater: And therefore, this alerts for cross section is not being used by the some of the current detectors so, for example, for an integrated integrated luminosity of 150 in offense to learn, we have around the 2017 produce neutral pions. 13 00:01:11.850 --> 00:01:23.850 Jordi Sabater: And so therefore phasers located about 480 meters downstream, not the address interaction point and about 1% of these bye bye CEOs are within the vector acceptance of facial. 14 00:01:25.110 --> 00:01:35.850 Jordi Sabater: feature is that the four articles are tend to be very coordinated so one typical process that you can have this interaction, then you you produce. 15 00:01:36.990 --> 00:01:53.370 Jordi Sabater: A lightness and that indicates internally particle then this long list bicycle Charles or they have hundreds of meters and then, in the case inside the detector volume so, for example, typical DK channels can be I like deposit on pairs. 16 00:01:54.960 --> 00:02:03.030 Jordi Sabater: And the opening angle of these electron positron is, if you take a typical values for the Masters on energies of these lovely Friday goes. 17 00:02:04.080 --> 00:02:21.210 Jordi Sabater: You have seen that the opening angle can be of founders of mega radiance which That means that, which means that they're after one meter there said very soon, is about 100 micro so you have to have good posture resolution to be able to resolve the two particles. 18 00:02:23.940 --> 00:02:28.500 Jordi Sabater: um so typical when you can have in the in the in the face. 19 00:02:30.240 --> 00:02:32.580 Jordi Sabater: detector is, for example, so here what a show. 20 00:02:33.930 --> 00:02:45.690 Jordi Sabater: I sketch of the of the covered so the star corresponds to the address interaction points so you can have a PP coalition here and then pushing that I like mess around I said before, and then you can take a into a folder. 21 00:02:46.590 --> 00:02:55.080 Jordi Sabater: That folder or there, plus two processes so you can have is a proton ravi ravi at North bay. 22 00:02:55.770 --> 00:03:11.460 Jordi Sabater: Therefore don't or even the dark for them being being produced that there are this highly scattering then these are all done would travel through the elysee facility and then until it reaches facer and the physical location and then, in the case we seen the detector volume. 23 00:03:12.780 --> 00:03:21.030 Jordi Sabater: So this is what this is the kind of signal we expect, so the guide for them to gain within the detective volume into, for example, a plus or minus. 24 00:03:22.680 --> 00:03:35.340 Jordi Sabater: And then, thanks to the magnet and the tracker station that we have we can actually resolve the two electrons so we have two tracks in our trackers and then I got to meet during their positive in our in in at the end of the either detector. 25 00:03:36.870 --> 00:03:49.050 Jordi Sabater: However, we can also have actually like particles produced or the interaction points so, for example, you can have the dimensions digging into actions and chaos, for example, or K and sticking to actions on pions. 26 00:03:50.220 --> 00:03:56.550 Jordi Sabater: And then these disciples would travel through the elysee facility and again and again to the face or volume. 27 00:03:58.170 --> 00:04:06.630 Jordi Sabater: An interesting production mechanism is actually producing a photon in the address interaction point then these photons travels through the. 28 00:04:08.040 --> 00:04:24.960 Jordi Sabater: Through the cavern and in the hits and the stick metal block 343.5 meters metal block which we call them and then in this interaction, which is called a pre kickoff we can actually produce also accidents that then and travel through the detector and then decay. 29 00:04:26.340 --> 00:04:39.480 Jordi Sabater: And a typical decay of these actions each into two photons and the problem is that with the current detector we cannot be solved this to a call limited photos because in front of the character, we have right now, our current. 30 00:04:40.890 --> 00:04:53.970 Jordi Sabater: A pre shower which consists of two layers of simulator and two layers of constant so there's no way you can distinguish between photons that are separated by orders of 100 microns. 31 00:04:55.320 --> 00:05:06.300 Jordi Sabater: Therefore, our plan is to upgrade the the shower and there's a three fold return for this, the first one is, we want to redirect macro investor will take this day for don't signal. 32 00:05:07.350 --> 00:05:15.300 Jordi Sabater: The second one is to distinguish between since we can distinguish between the two photons we can actually if we see a signal in the future, we could actually characterize the new physics, you know. 33 00:05:16.140 --> 00:05:27.120 Jordi Sabater: Because we were able to to to resolve these two photons and the third one, is that we can actually explore more exotic scenarios, where we have multiple folders in the final state so. 34 00:05:27.480 --> 00:05:37.290 Jordi Sabater: You can find models that then where the final state consists of three to four photons so we could actually be able to now have sensitivity, the smallest as well. 35 00:05:39.660 --> 00:05:58.320 Jordi Sabater: So this is the the plan, so the, this is the shower you have now, so the new pitch I will will will be style installed in the in the in the same place for their space for for this upgrade a shower I will be composed of tanks and layers and silicon to have high special resolution. 36 00:05:59.430 --> 00:06:09.720 Jordi Sabater: And the band is to be installed by the for the illuminati really see face, so how the signals we change with what we have now so. 37 00:06:10.950 --> 00:06:15.570 Jordi Sabater: We will have the out decaying within detector volume and now we have like. 38 00:06:16.800 --> 00:06:23.850 Jordi Sabater: Some showers some pre showers already in the in the sub upgraded the shower and then again the the. 39 00:06:25.050 --> 00:06:27.030 Jordi Sabater: The energy deposit in the parameter. 40 00:06:28.110 --> 00:06:43.020 Jordi Sabater: And this is the nominal layout we have right now, so it consists of six six layers of Thompson and then into revealed with layers of silicon detector so this debris showers is about 200 times 201. 41 00:06:44.610 --> 00:06:51.390 Jordi Sabater: millimeter squared and the silicon planes are made out of a hectare no pictures of 65 micrometers sites. 42 00:06:52.410 --> 00:06:56.490 Jordi Sabater: And then the tungsten, which is the violet one on the picture on the left. 43 00:06:57.900 --> 00:07:13.950 Jordi Sabater: It is one of the latest one religion length, which amounts up to six or eight reduction length in total, and this means that the probability of the photon converting into an a plus or minus pair is above 99% with this thickness. 44 00:07:15.450 --> 00:07:21.660 Jordi Sabater: On the right hand side you can be you can see, one of the low energetic for them being shot at the Center of the hour. 45 00:07:23.460 --> 00:07:37.140 Jordi Sabater: So, how does the M at an event like this look like, so what is on the left is a heat map of the X axis correspond to X axis of the of the new P shower in micrometres on the y axis. 46 00:07:38.160 --> 00:07:44.610 Jordi Sabater: To the new pre showering micrometres as well, so here too short to photons have to teach we're sure that they. 47 00:07:45.840 --> 00:07:55.290 Jordi Sabater: Are they are the shower with a separation of 500 microns So you can see that we can with the director resolve these two photons and and the director senior. 48 00:07:56.760 --> 00:07:58.710 Jordi Sabater: So we actually completed the efficiency of. 49 00:07:59.820 --> 00:08:08.520 Jordi Sabater: reconstructing these two forms of separate photons, so this is showing the bottom there right, so the way actually show the efficiency and the exactly show the distance between the photons. 50 00:08:09.150 --> 00:08:16.860 Jordi Sabater: So, for example, if we look at the so the blue line response to the machine learning approach and then the we build a simple reconstruction algorithm. 51 00:08:18.420 --> 00:08:24.630 Jordi Sabater: to identify these two photons, and this is shown in orange and you can see that for separation so both. 52 00:08:25.710 --> 00:08:36.360 Jordi Sabater: Say 250 micrometres we get efficiency sorry about above 80% and this this this lines correspond to two photons of have one TV. 53 00:08:37.230 --> 00:08:50.550 Jordi Sabater: Everything we are actually looking at this one is because we will also have neutrinos that penetrates into the shower and generate a shower that could figure seen also This is something we are also studying also work in progress. 54 00:08:52.590 --> 00:08:56.880 Jordi Sabater: And the MICE my final slide is just a sensitivity plot that we obtained. 55 00:08:59.250 --> 00:09:07.530 Jordi Sabater: For this kind of models, where you have like measurements to gain to access and all their life methods were showing the y axis is the coupling on the X axis I show the. 56 00:09:08.850 --> 00:09:19.260 Jordi Sabater: The the mastering the most of the action in gv and then the different lines, so the blue line response to an integrated luminosity or three months October and. 57 00:09:20.040 --> 00:09:33.180 Jordi Sabater: Then the red line Chris wants to answer scenario where only part of the run three data was recorded, which corresponds to 9090 minutes, part two, and then the bloodlines correspond to. 58 00:09:34.290 --> 00:09:42.300 Jordi Sabater: take into account deficiencies of reconstructing photons have of 200 to 200 micrometres separations we handed micrometres etc. 59 00:09:44.280 --> 00:09:58.650 Jordi Sabater: So you can see, actually, so if we are able to reconstruct photons we separate off of 200 micrometres you can see that we can actually access to our original bass bass, I really was only in 90 in the third one. 60 00:09:59.430 --> 00:10:12.840 Jordi Sabater: there's no color via the experiments showing in Gray, and I have to say that there's a lot of room for improvement, also in this in this plot, because this was also only done we have simple reconstruction algorithm not. 61 00:10:15.240 --> 00:10:24.900 Jordi Sabater: So there's a lot of improvement to to improve in this in this kind of algorithm and an improvement, a sensitivity and that's everything had thanks. 62 00:10:35.040 --> 00:10:36.420 Matthew Citron: Very much and. 63 00:10:38.100 --> 00:10:38.400 Matthew Citron: Any. 64 00:10:39.540 --> 00:10:41.040 Matthew Citron: Questions or comments. 65 00:10:45.780 --> 00:10:46.350 Matthew Citron: If not. 66 00:10:49.140 --> 00:10:50.790 Matthew Citron: I see in my office. 67 00:10:50.850 --> 00:10:54.720 Michael Albrow: yeah Thank you that's interesting developer I just went on this particular plot here. 68 00:10:55.740 --> 00:11:01.920 Michael Albrow: You should presumably block out the regional page zero mass and the H and H prime mass because they go to two cameras. 69 00:11:03.750 --> 00:11:13.080 Michael Albrow: And they'll come from the from the veto counter in front of the beginning and from so you won't have sensitivity around those masses right the pi zero eater background. 70 00:11:13.620 --> 00:11:15.240 Jordi Sabater: Can you repeat the argument, please. 71 00:11:16.470 --> 00:11:22.020 Michael Albrow: And there will be pies zeros and eaters and age of PRIMES that decatur gamma gamma. 72 00:11:22.440 --> 00:11:23.100 Jordi Sabater: Ray but. 73 00:11:26.430 --> 00:11:39.420 Jordi Sabater: Actually, no, because in for or if they decay within the detector volume, it may be a background, but I don't think you can have by serious coming from the others interaction point and the cane actually because we have a. 74 00:11:39.990 --> 00:11:49.170 Michael Albrow: Retail yeah sorry they weren't decay inside the volume, but you have a fee to count that they can be produced at the beginning of your pre shower. 75 00:11:50.790 --> 00:11:54.480 Michael Albrow: dedicate I mean dedicate promptly right but but. 76 00:11:56.190 --> 00:12:04.020 Michael Albrow: Unless you can show that the vertex is inside the cave volume well and not at a plate in the shower. 77 00:12:05.010 --> 00:12:09.270 Jordi Sabater: hmm so so, how would these patents be produced again so. 78 00:12:09.300 --> 00:12:11.160 Jordi Sabater: Coming from the from the Ad. 79 00:12:11.520 --> 00:12:14.010 Jordi Sabater: Or you mean by by just interaction with the tungsten. 80 00:12:14.490 --> 00:12:19.530 Michael Albrow: yeah I mean you have a lot of interactions in the chunks and absorbs up front from. 81 00:12:20.310 --> 00:12:28.260 Jordi Sabater: But it's this will just contribute so you mean the two photons written the dance and I created some pions in the in the showers. 82 00:12:29.070 --> 00:12:30.030 Michael Albrow: yeah pi zero. 83 00:12:30.060 --> 00:12:31.110 can be created here. 84 00:12:33.060 --> 00:12:33.480 Jordi Sabater: yeah. 85 00:12:35.130 --> 00:12:36.330 Jordi Sabater: that's a good point. 86 00:12:37.440 --> 00:12:44.010 Jordi Sabater: I think this, this will be part of what it's part of the singer right because they're produced by the two photons coming from the. 87 00:12:44.430 --> 00:12:50.610 Michael Albrow: signal yeah I mean if you if you reconstructed matter what a mass resolution of your gamma gamma. 88 00:12:50.730 --> 00:12:57.900 Michael Albrow: Is but yeah then then you'd probably not be sensitive around the pipe zero mass and the HR and a prime mass because. 89 00:12:58.470 --> 00:13:03.480 Michael Albrow: They will be, you know that there will be plenty of those from showers upstream. 90 00:13:06.510 --> 00:13:07.620 Jordi Sabater: i'm going to share what I will have. 91 00:13:07.680 --> 00:13:08.790 Jordi Sabater: I will have to think about it. 92 00:13:10.500 --> 00:13:12.840 Jordi Sabater: Well, maybe that's the case yeah yeah Okay, thank you. 93 00:13:17.340 --> 00:13:19.620 Jordi Sabater: So this is definitely not taking into account in this plot. 94 00:13:21.840 --> 00:13:24.090 Matthew Citron: I see Albert as his first. 95 00:13:25.560 --> 00:13:33.480 Albert De Roeck: question for us, what do you think you will be able to install something that for me. 96 00:13:35.250 --> 00:13:37.680 Albert De Roeck: I heard you saying the illuminati. 97 00:13:39.150 --> 00:13:41.700 Albert De Roeck: still want to install something in roughly right. 98 00:13:43.470 --> 00:13:43.890 Jordi Sabater: um. 99 00:13:45.210 --> 00:13:49.200 Jordi Sabater: No, this is intended for the high luminosity let's see phase so. 100 00:13:49.590 --> 00:13:51.990 Albert De Roeck: While you're still around those are reviewing the. 101 00:13:52.050 --> 00:13:57.450 Albert De Roeck: High luminosity because we want to preserve food and that maybe so we're completely different. 102 00:13:58.830 --> 00:14:03.480 Jordi Sabater: um I think the plan was at the beginning to have it for part of France, three but. 103 00:14:04.650 --> 00:14:08.910 Jordi Sabater: I don't think this is feasible anymore, so I think it will repay inside the face are doing yeah. 104 00:14:10.530 --> 00:14:16.410 Albert De Roeck: Okay yeah that's right without it will be bigger and things like that, because we have a much better. 105 00:14:16.590 --> 00:14:16.950 Jordi Sabater: mm hmm. 106 00:14:18.510 --> 00:14:18.840 Albert De Roeck: Okay. 107 00:14:22.680 --> 00:14:25.830 Matthew Citron: very disciplined question what motivates them 19 verse 50 points. 108 00:14:27.150 --> 00:14:32.520 Jordi Sabater: So this corresponding to one scenario when this was done like few, I think. 109 00:14:33.720 --> 00:14:34.710 Jordi Sabater: Months ago. 110 00:14:35.070 --> 00:14:46.260 Jordi Sabater: And there was a scenario where the shower will be upgraded at some point of run three so i'm not regarding the food brands luminosity 150 but part of it only 90. 111 00:14:48.180 --> 00:14:49.140 Matthew Citron: Okay, but now. 112 00:14:49.650 --> 00:14:51.510 Jordi Sabater: Nowadays yeah yeah, this is not. 113 00:14:52.680 --> 00:14:55.530 Jordi Sabater: an option anymore I far as I understood. 114 00:14:57.030 --> 00:14:57.810 Okay, thanks. 115 00:15:02.370 --> 00:15:17.640 Matthew Citron: Okay, well, thank you very much for the very interesting talk looks like a very nice upgrade to fazer and I think we should move that into it and the status from plants of micro experiment thanks again. 116 00:15:18.600 --> 00:15:19.680 David Vannerom: And Matthew can you hear me. 117 00:15:21.180 --> 00:15:21.810 Matthew Citron: Yes. 118 00:15:23.190 --> 00:15:24.270 David Vannerom: Can you try to share. 119 00:15:25.650 --> 00:15:26.490 David Vannerom: That working. 120 00:15:29.130 --> 00:15:31.410 Matthew Citron: yeah so we see it, your first. 121 00:15:32.160 --> 00:15:34.680 David Vannerom: Presentation that's better yeah. 122 00:15:34.770 --> 00:15:35.160 it's worth. 123 00:15:36.900 --> 00:15:37.470 David Vannerom: All right. 124 00:15:37.530 --> 00:15:38.850 David Vannerom: Yes, so i'm gonna. 125 00:15:39.870 --> 00:15:47.340 David Vannerom: present a status of the American experiment at CERN and the plans for the coming months and years. 126 00:15:48.690 --> 00:15:51.810 David Vannerom: So basically we're interested in the search for Articles with. 127 00:15:52.860 --> 00:16:00.690 David Vannerom: A very low charge so basically the current landscape of known particles, is that they all have either. 128 00:16:02.520 --> 00:16:06.660 David Vannerom: Zero electromagnetic charge like the foot on or unit or. 129 00:16:08.040 --> 00:16:25.110 David Vannerom: Multiple of the electron charged plus minus one etc, or they have fractional charge but they're confined like quark so you can count really have those lonely free propagating particles, so the question we raised is is. 130 00:16:26.160 --> 00:16:31.470 David Vannerom: Do we have in the universe free propagating long these articles with. 131 00:16:32.700 --> 00:16:40.620 David Vannerom: an exotic charge in particular milliken is interested about the the the order of. 132 00:16:42.180 --> 00:16:49.560 David Vannerom: hundreds or thousands of the charge, so there is this generic model. 133 00:16:51.270 --> 00:16:56.280 David Vannerom: That uses the mechanism of kinetic mixing where you have an extra. 134 00:16:57.390 --> 00:16:58.170 David Vannerom: A human group. 135 00:17:01.050 --> 00:17:08.400 David Vannerom: and associated firm and fields that do not coupled to the standard model directly, but do you want prime mixes with the standard model hypercharged. 136 00:17:08.760 --> 00:17:19.530 David Vannerom: and basically what you get is, you have a new firm yon that carries an effective electromagnetic charge, so you would be able to produce that particle in Australian like. 137 00:17:21.060 --> 00:17:25.920 David Vannerom: phenomenology in pairs as is a little strange in in this in this diagram. 138 00:17:27.390 --> 00:17:28.110 David Vannerom: So we've. 139 00:17:29.160 --> 00:17:31.860 David Vannerom: built a demonstrator for the milliken. 140 00:17:33.480 --> 00:17:39.630 David Vannerom: experiment, a couple of years ago for for that to data in the interim to in 2013. 141 00:17:41.130 --> 00:17:45.810 David Vannerom: And, basically, the idea is to have large simulation. 142 00:17:47.190 --> 00:17:59.910 David Vannerom: volume or at least distance seen by the particles producing in the at the cms interaction point that would fly up to the orange gallery where the detector is located, and these particles, so we didn't see. 143 00:18:01.500 --> 00:18:05.760 David Vannerom: three layers for demonstrator of a simulator array. 144 00:18:08.130 --> 00:18:14.100 David Vannerom: Hopefully ionizing the middle the material and and leaving there a very small. 145 00:18:15.930 --> 00:18:24.060 David Vannerom: pulse, and so what you require is to have a coherent signal in each of the three layers. 146 00:18:25.200 --> 00:18:33.570 David Vannerom: So that was the milken demonstrator which actually already hit the edge of the existing existing excluded region, as you can see, on these. 147 00:18:35.070 --> 00:18:46.410 David Vannerom: limit, or at least constraint bloods for results for 20 2018 and under right here, you have a picture of the milken gallery above cms. 148 00:18:47.580 --> 00:18:55.860 David Vannerom: Where the milken demonstrator was located and where we were we are currently building the next iteration of the demonstrator. 149 00:18:56.400 --> 00:19:05.970 David Vannerom: Of the of the vector, which is actually made up to detectors So the idea is that now we're going to have a larger and improved bar that vector as we call it. 150 00:19:06.840 --> 00:19:28.500 David Vannerom: which actually now has a wider coverage sweets four by four instead of two by three and it now has four layers because we learn from demonstrator that this was helping reduce the background significantly, but today is very sensitive large volume of simulation detector we are. 151 00:19:30.510 --> 00:19:48.450 David Vannerom: adding a complimentary slab detector which is not to scale on the on the picture and that's important because it's actually much larger in coverage or acceptance it's made off also four layers of slabs which are actually 40 times 60 centimeters. 152 00:19:49.530 --> 00:19:54.120 David Vannerom: Large so the the geometrical acceptance of the scientific theories much, much larger. 153 00:19:55.620 --> 00:19:59.910 David Vannerom: Both these detectors are made of simulation volume, which is coupled to these. 154 00:20:00.930 --> 00:20:03.600 David Vannerom: Pre amplifying pmt so the pmt are carrying. 155 00:20:04.860 --> 00:20:06.870 David Vannerom: A printer fire board on them. 156 00:20:08.490 --> 00:20:23.220 David Vannerom: So this is the expected sensitivity for the Room three, as well as for the hi Lucy Lucy with the given luminosity is there, so what you see is, you have the bar detector which targets, basically, the lowest. 157 00:20:24.120 --> 00:20:46.500 David Vannerom: ionizing mcp so many charged particles and and the bar detector so covers the lower mass region as you, as you can see, on the on the bullets on Center and the slab the director, which has the advantage of having this larger geometrical or angular acceptance. 158 00:20:47.610 --> 00:20:48.570 David Vannerom: helps us. 159 00:20:50.040 --> 00:21:05.370 David Vannerom: gain in sensitivity for the dmca is that the more energy to detector which we can afford than to have a smaller seen volume beta beta particle so we're now building these two detectors in the gallery. 160 00:21:06.900 --> 00:21:17.610 David Vannerom: In view of taking data in the in the in actually this year in 2022 so i'm going to show a couple of features of of the situation, so these are. 161 00:21:18.870 --> 00:21:25.920 David Vannerom: The simulation seem to their bars so on the on the far edge of the picture you see the. 162 00:21:27.270 --> 00:21:33.390 David Vannerom: Just the bar to which we attach a pmt and and make it light died so that there is no. 163 00:21:34.410 --> 00:21:36.660 David Vannerom: Pollution from ambient light and. 164 00:21:39.120 --> 00:21:57.360 David Vannerom: yeah basically that, and so this is what you get at the end so it's a taped bar with a pmt connected to it, so this this was done at ucsb and now the bars have been shipped to CERN so the bars are grouped in modules and supermodels and and basically it's all assembled in these. 165 00:21:58.740 --> 00:22:05.700 David Vannerom: Large metal cage that we then get lower down to the to the gallery to be installed. 166 00:22:07.380 --> 00:22:22.770 David Vannerom: And we've even had already have the dq setup for the bar detector in a gallery, which is basically now waiting for the detector itself, so we have ways to test the dq without like either with. 167 00:22:24.030 --> 00:22:32.160 David Vannerom: bars from the previous detector or false generator and so on, so we have wasted as the dq and and. 168 00:22:33.540 --> 00:22:37.290 David Vannerom: So basically now the status of the bar detector is that we have all bars. 169 00:22:38.370 --> 00:22:40.980 David Vannerom: At CERN they're ready mountain and tested. 170 00:22:42.300 --> 00:22:51.450 David Vannerom: And the mechanical structures that i've showed you the cage and supermodel structure is is ready, so we really just need to check again that the the the bars. 171 00:22:51.990 --> 00:23:06.030 David Vannerom: haven't suffered for from the from the traveling and the shipments and then just assemble them in the in the structure and lower them to the gallery and then retest the deck with with the detector so, so this is very. 172 00:23:09.240 --> 00:23:28.410 David Vannerom: good status for us now on to the slab detector we are currently in a process of mounting the simulator the PM fees on the simulator slab so we actually have four of them purse lab so that we can collect as much light. 173 00:23:29.670 --> 00:23:34.560 David Vannerom: As we can, and so this is a these are pictures of our setup. 174 00:23:35.730 --> 00:23:42.870 David Vannerom: At the point five, where we have our milliken lab on the surface, so you see how we have these. 175 00:23:44.220 --> 00:23:52.500 David Vannerom: holes in the rapping to allow for the pmt to be connected, which is done in South central picture and then you see how it looks like after after it's done. 176 00:23:53.880 --> 00:24:11.850 David Vannerom: So this is this is currently being done that's hearing and this labs will be assembled so on the dumper ID sketch is not actually how it looks like it what it looks like is essential picture, where you have the slabs assembled in these mechanical arm, which is soon to be machines. 177 00:24:13.800 --> 00:24:15.600 David Vannerom: By Mohammed and Robert here. 178 00:24:18.090 --> 00:24:33.630 David Vannerom: Right, so the state is is that we have all the slides and the mts here at CERN the pmt is have all been tested now, we just need just, we need to mount bmt slabs dentist dentist labs for light darkness and and. 179 00:24:34.740 --> 00:24:41.640 David Vannerom: And and assembles labs intuitive mechanical structural just showed you and have everything down to the gallery. 180 00:24:42.960 --> 00:24:53.940 David Vannerom: So the timeline is that construction as well, its way we have everything he returns it's just a matter of time and effort to assemble and finalize the testing. 181 00:24:54.990 --> 00:25:09.090 David Vannerom: which we probably will probably take a couple of months, we first need to be able to take data, this year, probably around can of summer and we're very excited because this will allow us to significantly. 182 00:25:11.460 --> 00:25:20.400 David Vannerom: increase the the explorer region in a search for me to church particles, so thank you very much for attention and and I think i'm done. 183 00:25:24.480 --> 00:25:27.660 Matthew Citron: Thanks very much did he put some questions. 184 00:25:33.390 --> 00:25:38.130 Matthew Citron: I guess I should apologize i'm at least partially responsible for that mess of cables you see there. 185 00:25:39.990 --> 00:25:42.390 David Vannerom: Yes, okay they're not there anymore. 186 00:25:44.640 --> 00:25:45.780 Matthew Citron: So I see Julia. 187 00:25:48.060 --> 00:25:53.760 Juliette Alimena: yeah thanks for the Nice talk, I was just curious you say one of your last. 188 00:25:54.690 --> 00:26:11.010 Juliette Alimena: In your next steps on the previous slide, the last thing to do is to test the deck and start running i'm just curious if the the deck needs it, is it the same as what you have for the the demonstrator do you need to do any work there to make it ready for the full thing. 189 00:26:11.370 --> 00:26:15.480 David Vannerom: So detectors are really completely separated, like the run. 190 00:26:16.590 --> 00:26:24.240 David Vannerom: independently and have each of them has their own to queue and digitize hers and like it's it's a it's really just. 191 00:26:25.590 --> 00:26:34.590 David Vannerom: A different I mean the setup is the material in the 70s very similar but it's just another one that we need to set up so um. 192 00:26:35.760 --> 00:26:36.060 yeah. 193 00:26:39.270 --> 00:26:45.450 Juliette Alimena: Sorry, so it's another sort of copy of the same deck or other significant differences I. 194 00:26:45.510 --> 00:26:46.710 David Vannerom: mean there are various. 195 00:26:46.740 --> 00:26:49.500 David Vannerom: yeah there are differences in the way we're going to trigger. 196 00:26:49.620 --> 00:27:01.140 David Vannerom: And because the the geometry of the director and the backgrounds won't be exactly the same um so yeah it's a different deck. 197 00:27:03.150 --> 00:27:04.740 Juliette Alimena: Okay, thanks cool. 198 00:27:15.690 --> 00:27:25.050 Matthew Citron: Okay let's see any other questions so thanks again, this is a very nice update on the status of silicon sure. 199 00:27:27.720 --> 00:27:30.270 Matthew Citron: I think we now move to the nearly. 200 00:27:55.470 --> 00:27:58.440 Matthew Citron: hey anyone else here that nearly I could look. 201 00:27:58.920 --> 00:27:59.610 David Vannerom: yeah I can. 202 00:28:00.390 --> 00:28:01.890 Jaehoon Yu: You still muted Daniela. 203 00:28:08.610 --> 00:28:09.780 Daniele Barducci: So we apologize. 204 00:28:11.730 --> 00:28:13.740 Daniele Barducci: muted automatically can you hear me now. 205 00:28:14.730 --> 00:28:15.270 Yes. 206 00:28:16.290 --> 00:28:21.060 Daniele Barducci: Okay, so it was my fault about the heads gate, let me start my share. 207 00:28:26.070 --> 00:28:26.850 Daniele Barducci: So. 208 00:28:29.340 --> 00:28:31.020 Daniele Barducci: not allowed to show screen. 209 00:28:41.700 --> 00:28:46.140 Daniele Barducci: So I cannot share cream I did this morning actually book. 210 00:28:52.320 --> 00:28:57.360 Juliette Alimena: Let me I can try to make you a Co host for your talk and maybe that fixes the problem. 211 00:29:01.440 --> 00:29:01.920 Daniele Barducci: Wait. 212 00:29:12.420 --> 00:29:15.570 Daniele Barducci: Actually, shared some slide this morning, so. 213 00:29:29.490 --> 00:29:30.900 Daniele Barducci: So let's try again. 214 00:29:33.060 --> 00:29:35.220 Daniele Barducci: No, it doesn't let me. 215 00:29:40.230 --> 00:29:47.580 Daniele Barducci: Over system preference security and privacy to grant access, this is because I did a mock up great a lunchtime. 216 00:29:48.600 --> 00:29:48.900 Daniele Barducci: Which is. 217 00:29:49.770 --> 00:29:52.290 Matthew Citron: Nearly and I can share the slides. 218 00:29:52.890 --> 00:29:55.140 Daniele Barducci: Oh, that would be nice if you can share the slides. 219 00:29:55.200 --> 00:29:59.700 Daniele Barducci: And then I will I will I will tell you next slide sorry about this. 220 00:30:02.040 --> 00:30:03.780 Matthew Citron: Okay that's that's great that's great. 221 00:30:04.440 --> 00:30:13.680 Daniele Barducci: Perfect anyway so first of all thanks a lot for giving me this opportunity, so what I will be discussing there will be presenting some work which have been done with the. 222 00:30:14.610 --> 00:30:26.580 Daniele Barducci: linear combination of disguise in various paper as a work in progress, and I will talk about drunkenly particle in some extension of the seesaw an AC some other So yes please next slide. 223 00:30:32.100 --> 00:30:38.490 Daniele Barducci: Okay, so just a brief introduction, we all know that the neutrino mass require new physics beyond the standard model. 224 00:30:38.730 --> 00:30:46.080 Daniele Barducci: And the simplest possibility is to add the right hand industry now so it's not that not a single, and you know total single it on the standard model. 225 00:30:46.380 --> 00:30:57.030 Daniele Barducci: which have your interaction with the higgs boson and then my around the master which is allowed by gauge symmetry This allows to realize the lightness of the neutrino mass to the seesaw mechanism. 226 00:30:57.480 --> 00:31:00.870 Daniele Barducci: So you will have like neutrino under heavy neutrino against state. 227 00:31:01.500 --> 00:31:15.270 Daniele Barducci: What I will be interested in our right hand the neutrino grossly speaking of the electric scale where electric scale, I mean from 100 MTV to let's say 100 GB something similar, this is because i'm interested in collider searches. 228 00:31:16.890 --> 00:31:26.490 Daniele Barducci: So there is a neat relation between the mass of the heavy nutrient or the mass of the line between now and the mixing angle between the active as 23 you know which is depicted. 229 00:31:27.180 --> 00:31:33.990 Daniele Barducci: Here in this equation, and this implies a long lifetime for 103 you know which the case to a mixing without enough enough. 230 00:31:34.290 --> 00:31:51.000 Daniele Barducci: So in this spot in the middle right of the span and you see that the given the the mass of the randomness we know the visa range where the random screen is stable on collider scale display the case displaced so far from the interaction points or respond. 231 00:31:52.980 --> 00:32:06.240 Daniele Barducci: This model is something mixing also implies there's production cross section is suppressed, and this makes the fee so limited and I you see selena a really hard time with it was showing this blog from glendale of 2013 next slide please. 232 00:32:09.180 --> 00:32:21.870 Daniele Barducci: So now, this name seesaw scaling can actually be modified in two different ways, the first way is to add more than one rather than we do so if you are more than one right handed neutrino the parameters that you have a parameter and the UK. 233 00:32:23.400 --> 00:32:28.890 Daniele Barducci: And the master parameter becomes matrices so the relation between the diagonal. 234 00:32:29.850 --> 00:32:36.480 Daniele Barducci: Messiah again state metrics for the light neutrino at the mathematics for the light neutrino becomes a relation between matrix this. 235 00:32:36.840 --> 00:32:43.470 Daniele Barducci: This can be solved them for why new or the mixing gang well in functional this this combination of matrices. 236 00:32:43.890 --> 00:32:48.780 Daniele Barducci: then put them point is that when you have more than one right hand in between, or there is an extra freedom. 237 00:32:49.530 --> 00:33:01.320 Daniele Barducci: In that they have an amazing day of analyzing the system, and this is best in what is called the cars, I see bad, but i'm not gonna say shawn so it's an extra freedom given by your men by net and things and complex are talking about matrix. 238 00:33:02.040 --> 00:33:09.000 Daniele Barducci: And the important point is that this matrix can have angels, which are complex numbers, so they can have a real an imaginary by. 239 00:33:09.660 --> 00:33:16.260 Daniele Barducci: The minute you know, a part of this complex angle causes an exponential announcement of the mixing as is shown in the last. 240 00:33:16.650 --> 00:33:32.880 Daniele Barducci: Next to the last equation on the slide this breaks them a relation between the mixing angle and the mass of the head neutrino and allows to span the baby, the whole parameter face of the right hand in the mass i'm mixing the angle of course incompatibility to the experimental. 241 00:33:34.020 --> 00:33:34.830 Daniele Barducci: Next slide please. 242 00:33:36.900 --> 00:33:39.810 Daniele Barducci: The same way in which you can actually modify the. 243 00:33:40.260 --> 00:33:48.630 Daniele Barducci: model is to take the Nice model actually seriously So if you think this is the model, etc, there is no reason why you should think that this is the whole story. 244 00:33:48.900 --> 00:33:57.870 Daniele Barducci: But in more completed you'll be theory, there will be some extra degrees of freedom and maybe a higher scale that complete the complete this model. 245 00:33:58.320 --> 00:34:06.780 Daniele Barducci: So a low energy below this let's say this cup of Lambda you compartmentalize you're making around in the usual way like an effective field theory. 246 00:34:07.110 --> 00:34:19.080 Daniele Barducci: Only that the fact that now this effective feel theories build out with a standard other fields under 100 or female, and this is known as then neutrino standard model effectively theory or in nature, through as the seesaw Porto. 247 00:34:20.070 --> 00:34:36.180 Daniele Barducci: Anything is that the dimensional five there are only two new operators, besides the wind, but there is an operator connecting the right hand and what we know today he he razor and there is a dipole operator of the neutrino with the iPad charged field strikes next slide please. 248 00:34:39.030 --> 00:34:51.240 Daniele Barducci: So this to have a racehorse I really need phenomenology first of all, clearly, they will give you the K modes for the big boat and the boat, so this means that this operators. 249 00:34:51.510 --> 00:35:01.590 Daniele Barducci: This phenomenology by this operator will would be a primary target for future hicks factories, as the FCC he, for example, or the irc or or sex. 250 00:35:02.610 --> 00:35:03.420 Daniele Barducci: sipc. 251 00:35:05.370 --> 00:35:12.720 Daniele Barducci: So in this equation, you see the what's the rate the modified the rate of the external person, you know and it said nothing no nothing you know partial with. 252 00:35:13.410 --> 00:35:19.320 Daniele Barducci: And in our work, we have to consider mainly the many different collider many future hicks factory running under his. 253 00:35:19.740 --> 00:35:31.770 Daniele Barducci: direction so 240 GB where you maximize the production of the heats in association with the dead boson and the deadpool one where you have Tara said that option, with the order to the 12 said bows and produce it. 254 00:35:33.360 --> 00:35:40.200 Daniele Barducci: Clearly, now the production cross section for the random three no it's not suppressed anymore by the mixing gangling the bottom left part of this. 255 00:35:40.800 --> 00:36:00.210 Daniele Barducci: Of this panel you, you see the production cross section of the 1300 trees induced by they're all nh operator, so the better connected with the higgs boson and they said on the dipole operator, so this is not any more suppressed, but then again the suppressed by the scale. 256 00:36:01.320 --> 00:36:18.570 Daniele Barducci: In this scenario, however dedicate still in use by mixing with the branching ratio in the final stages of one left on and two quarts or two items given by the branch ratio of the.so you normal branching ratio of randomness Reno and use a mix and please. 257 00:36:20.220 --> 00:36:22.200 Daniele Barducci: But we have studied the possibility of. 258 00:36:23.220 --> 00:36:36.750 Daniele Barducci: Random decay displace that we do in the future environment of a SEC machine we or IFC or the click machine, so you know this preliminary analysis, we have considered displaced. 259 00:36:37.200 --> 00:36:45.570 Daniele Barducci: around in the game with the centimeters and one meter from their direction point so assuming a future geometry of the detector which is. 260 00:36:46.890 --> 00:36:47.370 Daniele Barducci: This rain. 261 00:36:48.750 --> 00:36:57.330 Daniele Barducci: Importantly, we had enough, you know, on my around a bicycle so from the decay yoga therapy run through you know you can actually produce the same sign dialect. 262 00:36:58.320 --> 00:37:04.890 Daniele Barducci: So you can have to let them have the same sign this has a negligible background, because there is no standard model we also. 263 00:37:05.670 --> 00:37:19.230 Daniele Barducci: know you reducible standard model background that gives this final state because it's embedded conserved in a standard model, so this is a reading channel and has from the previous slide, we can see has roughly 20% of the decay rate of the grand in between. 264 00:37:20.580 --> 00:37:33.510 Daniele Barducci: So hearing this book i'm showing you our our results so in the Left lot that we said, the results for the run of the expression that 240 gv under the right blog to them, is there a result for the random zip code threshold so 9090 to get. 265 00:37:34.110 --> 00:37:48.570 Daniele Barducci: The result that dashed line or the limits that can be obtained in the future call either by the measurement of the additional invisible higgs boson ratio ratio or on the right spot the from the measurement of the examples on. 266 00:37:49.590 --> 00:37:55.560 Daniele Barducci: As you can see, Sir future collided greatness of the indirect reach on this adventure ratio. 267 00:37:58.800 --> 00:38:06.210 Daniele Barducci: With a Swiss kind of a final state process, for example, we can test order tend to them, I I tend to the Mongols for venture ratio of the higgs boson. 268 00:38:06.600 --> 00:38:18.990 Daniele Barducci: And the hix run or or the temple demand standard ratio ratio is that both on a desert Polygon so this name is well beyond the one conduct amiable from procedural measurement you can test multi TV regime for. 269 00:38:19.830 --> 00:38:27.900 Daniele Barducci: A and in our paper we have discussed also the prompt on the collaborative stable case, but this is the displace a prediction for discounted staff. 270 00:38:29.070 --> 00:38:29.610 Daniele Barducci: slightly. 271 00:38:32.430 --> 00:38:44.550 Daniele Barducci: So this what was concerning dimension five operator dimensional six of ECHO, there are many more of it right, so that I don't want you to read the whole list, but there is a bunch of a bunch of the operators that you can write a dimensional six. 272 00:38:45.030 --> 00:38:50.250 Daniele Barducci: then put a fact, and this action operator can induce can induce edition of the key notes. 273 00:38:50.760 --> 00:38:59.400 Daniele Barducci: dimensional fi the decay mode of the random you know is one, despite the mixing so as the standard or not, this is a model and dimensional six you actually switch on new became. 274 00:39:00.150 --> 00:39:11.430 Daniele Barducci: This the came out are divided into came out in three for me, if we can either be referred me on induced by a dimensional six for failure Baker. 275 00:39:11.880 --> 00:39:22.590 Daniele Barducci: or three third and final state that induce a dedicated have an option that both on w balls on originals, so there are three sweating of state or did they came to a standard more than usually you know. 276 00:39:24.000 --> 00:39:38.760 Daniele Barducci: Speaking into categories and, importantly, this new edition came out and dominate over the mixing as is shown in the spot, where below the solid black line the decay in dimensional data dominates over the one induced by the most. 277 00:39:40.110 --> 00:39:54.300 Daniele Barducci: interesting for the fame of a given section, which is today we just square the process, so this isn't really interesting bad good for future music to be collided, as for example click or as now is a bit more and more popular in your. 278 00:39:57.330 --> 00:39:58.290 Daniele Barducci: Next slide please. 279 00:40:01.800 --> 00:40:11.130 Daniele Barducci: So for lucene three know will give you a final stage to fall on on energy to let dawns on the fourth edition of smells. 280 00:40:12.090 --> 00:40:21.540 Daniele Barducci: With this higher dimensional operator, the show decay lengthen the decay lengthen the law, the data and how can actually be in the States region, so this is showing a lead to. 281 00:40:22.320 --> 00:40:31.740 Daniele Barducci: A mass and they got upscale Lambda and the blue region is the one where the decay length is will be displayed to say. 282 00:40:32.850 --> 00:40:35.760 Daniele Barducci: Between again point one centimeter on one meter. 283 00:40:36.960 --> 00:40:40.440 Daniele Barducci: On the right bottom showing the Linux that can be attained with a similar strategy. 284 00:40:41.730 --> 00:40:47.310 Daniele Barducci: Using displaced verte This is, as you can see again, you can test that really high. 285 00:40:47.760 --> 00:41:02.460 Daniele Barducci: cascade Lambda you can just said physics again in the movie the boogeyman so this future hicks factor in that thing this dimensional six operators, this new typical either a really effective in a resume or what also in Montana state of cases. 286 00:41:04.050 --> 00:41:04.800 Daniele Barducci: Next likely. 287 00:41:08.340 --> 00:41:15.660 Daniele Barducci: So, finally, I want to comment about some work in progress we're doing at the moment, so this, so what I was talking at the moment, was some experiments. 288 00:41:16.140 --> 00:41:24.420 Daniele Barducci: which are sensitive to the key length we didn't want meter but, as we know, there are many experiments are sensitive to order of 10 hundred meters of the KLA. 289 00:41:24.930 --> 00:41:31.170 Daniele Barducci: As far as mccool's lander, as we have heard in these days, the question we're trying to that second the test this scenario. 290 00:41:31.650 --> 00:41:39.660 Daniele Barducci: So we're starting to work on the case where we can focus on the simplest case so know mixing between that give us that I know that you know, and only the dipole operator on. 291 00:41:39.990 --> 00:41:45.930 Daniele Barducci: So it was only one take a channel one right handed or three you know they came to the last year and then, as we know, and before. 292 00:41:46.740 --> 00:41:54.030 Daniele Barducci: The decay Lang is function of course also have the must play in the more the generator these guys are the long the decay length. 293 00:41:54.870 --> 00:42:01.260 Daniele Barducci: For nightmare handlers ino masks the dominant production is based on the case, so the signature we're looking at is the following Amazon. 294 00:42:01.770 --> 00:42:12.420 Daniele Barducci: For example, a jade side again you to about 103, no one is gonna like this table for this, so our security is a single fought on became clear that. 295 00:42:13.080 --> 00:42:22.320 Daniele Barducci: it's an escape of back in this final state so here on the right blog i'm showing the limits that can be gained by phases in this little area. 296 00:42:23.040 --> 00:42:29.160 Daniele Barducci: A overlaid with though they limit to obtain, for example, for sheep, though the experiment like charm. 297 00:42:29.700 --> 00:42:36.270 Daniele Barducci: And we just sit around whether or the experiment in fact this final state the single photo signature, which you understood, these are quite. 298 00:42:36.720 --> 00:42:52.830 Daniele Barducci: Challenging having just a simple one, so an experiment that when it is welcome on the blue chip was really helpful for us, so I think i'm done with time, so I just flush the conclusion in the next slide on the lead time for question comes Thank you. 299 00:42:56.700 --> 00:42:57.630 Matthew Citron: Thanks very much. 300 00:42:59.190 --> 00:43:00.630 Daniele Barducci: Now you can go next slide but. 301 00:43:00.630 --> 00:43:00.900 Daniele Barducci: yeah. 302 00:43:01.830 --> 00:43:02.400 Yes, yeah. 303 00:43:06.270 --> 00:43:09.030 Matthew Citron: So i'm presenting, so I can see if anyone has their hand raised. 304 00:43:13.980 --> 00:43:14.100 Daniele Barducci: Oh. 305 00:43:16.680 --> 00:43:17.280 Daniele Barducci: Yes, he. 306 00:43:18.090 --> 00:43:18.630 James Beacham (he/him): has a hand. 307 00:43:19.650 --> 00:43:20.670 Matthew Citron: Okay, go ahead. 308 00:43:21.330 --> 00:43:30.150 Matt Strassler: yeah can you can you just clarify this has been fully studying for atlas and cms in terms of what they can do on the case. 309 00:43:32.310 --> 00:43:40.170 Daniele Barducci: So yes, on the higgs the case so hicks the case in Korea North Korea, because the state has bestowed upon us, and there are so. 310 00:43:41.760 --> 00:43:51.480 Daniele Barducci: Few theory paper excited on one of the previous slide by caputo that man this operator, so the test this scenario, are the of the delicacy. 311 00:43:51.720 --> 00:44:04.560 Daniele Barducci: and also the dipole operators, so the the K let's say additional decay of the dead has been studied in collider on the collider frame or by Santa Maria and collaborators Aleppo and there are some studies out there delicacy yes. 312 00:44:04.620 --> 00:44:05.250 Matt Strassler: But, so this is. 313 00:44:06.450 --> 00:44:07.920 Matt Strassler: The computer people what year was. 314 00:44:10.350 --> 00:44:17.550 Daniele Barducci: A couple of can you go back a few slides by heart, I think 2016, but if you go back like two three slides I think a quote and I. 315 00:44:19.290 --> 00:44:19.650 Daniele Barducci: know. 316 00:44:21.780 --> 00:44:25.410 Daniele Barducci: you've got it okay so yeah it's 2017 delicacy favorite. 317 00:44:26.310 --> 00:44:26.940 painting. 318 00:44:27.990 --> 00:44:28.200 Daniele Barducci: What. 319 00:44:40.410 --> 00:44:41.340 sxie@fnal.gov: I have a question. 320 00:44:43.650 --> 00:44:49.650 sxie@fnal.gov: On this last part where you have you make the single photon what what is, do you know what what is the energy of this photon. 321 00:44:51.480 --> 00:44:55.590 Daniele Barducci: he's not really it's not really hard photon do the energy can be adored. 322 00:44:57.480 --> 00:44:59.880 Daniele Barducci: 10s of GB let's say, less. 323 00:44:59.940 --> 00:45:01.410 sxie@fnal.gov: than 10 GB out 10 GB. 324 00:45:02.520 --> 00:45:03.540 sxie@fnal.gov: Okay, because because. 325 00:45:04.980 --> 00:45:07.680 sxie@fnal.gov: As we heard on the first day that this we have this. 326 00:45:08.760 --> 00:45:11.430 sxie@fnal.gov: capability, with the cms mian detector to. 327 00:45:11.430 --> 00:45:12.120 detect. 328 00:45:13.350 --> 00:45:20.400 sxie@fnal.gov: These photons if there may produce later, so they tend to be there is a possibility to observe that. 329 00:45:21.330 --> 00:45:21.630 sxie@fnal.gov: So. 330 00:45:21.690 --> 00:45:30.090 Daniele Barducci: Yes, yes, exactly yes yeah is that this is why, when our said this workshops been interested, yes, I was referring to that. 331 00:45:31.680 --> 00:45:37.080 Daniele Barducci: is really working with a collaborator yes, we need to, we need to check. 332 00:45:38.760 --> 00:45:40.290 Daniele Barducci: At target, which was phase. 333 00:45:41.850 --> 00:45:48.270 sxie@fnal.gov: Okay, great so yeah we will, if you have more information on it, we would be interested in seeing it and maybe try it out. 334 00:45:48.510 --> 00:45:52.770 Daniele Barducci: Oh that'd be nice sorry I cannot see your screen, can you tell me your name so. 335 00:45:54.750 --> 00:45:57.120 Daniele Barducci: We can't we can't shut the fly maybe I cannot see. 336 00:45:57.120 --> 00:45:59.070 sxie@fnal.gov: Your level of my face yes. 337 00:45:59.580 --> 00:46:01.080 sxie@fnal.gov: i'm safe i'm a. 338 00:46:01.800 --> 00:46:02.490 sxie@fnal.gov: At fermilab. 339 00:46:03.000 --> 00:46:03.780 caltech okay. 340 00:46:05.190 --> 00:46:06.300 Daniele Barducci: Okay, thank you, thank you. 341 00:46:06.750 --> 00:46:07.080 sxie@fnal.gov: Thank you. 342 00:46:08.760 --> 00:46:11.880 Matthew Citron: also suggested to keep the discussion going on matter most. 343 00:46:13.410 --> 00:46:14.280 Matthew Citron: general interest. 344 00:46:15.150 --> 00:46:16.980 Matthew Citron: Okay, another question as well. 345 00:46:23.220 --> 00:46:23.790 hi. 346 00:46:26.190 --> 00:46:26.850 Lucía Duarte: it's me. 347 00:46:28.230 --> 00:46:28.470 Daniele Barducci: hi. 348 00:46:29.340 --> 00:46:29.640 hi. 349 00:46:30.690 --> 00:46:39.540 Lucía Duarte: No, I wanted to to tell also mad that there's this this food on signal on the dimension five and they mentioned six. 350 00:46:39.540 --> 00:46:41.070 Lucía Duarte: Operators it's. 351 00:46:41.220 --> 00:46:48.780 Lucía Duarte: currently being studied from his boss, and we have a paper from Monday on that and it's it's Nice because they can be. 352 00:46:48.810 --> 00:46:49.890 Lucía Duarte: be constrained by. 353 00:46:49.920 --> 00:46:55.710 Lucía Duarte: Nine pointing for them in atlas so there's there's work going on. 354 00:46:56.100 --> 00:46:59.760 Lucía Duarte: in that direction so maybe you can take a look on that. 355 00:47:00.990 --> 00:47:06.720 Daniele Barducci: We actually chet Baker, I think, is the paper you mentioned, with the way you thought about so they left on exam the writer. 356 00:47:10.230 --> 00:47:10.590 Daniele Barducci: producer. 357 00:47:11.130 --> 00:47:16.830 Lucía Duarte: yeah and the higgs boson paris's to to write too heavy neutrinos and then you have two. 358 00:47:16.830 --> 00:47:17.640 Daniele Barducci: photons. 359 00:47:17.880 --> 00:47:32.100 Lucía Duarte: From that that's that's our thing and we've checked that we could do something with the with the mo for from non violence there's work going on in our class, we have a we had a chat on that. 360 00:47:32.490 --> 00:47:34.650 Lucía Duarte: On Tuesday, so. 361 00:47:35.010 --> 00:47:43.410 Daniele Barducci: yeah no I remember the talk about I think was the paper, where you thought the seeds became too radical three not going to fall on my bed, you need to trigger on the left on the riser. 362 00:47:44.130 --> 00:47:44.760 Daniele Barducci: yeah remember. 363 00:47:45.660 --> 00:47:52.890 Lucía Duarte: What they're doing now on atlas, but if you choose to go for the hicks production and vector Muslim fusion. 364 00:47:52.950 --> 00:47:54.630 Daniele Barducci: that's what we're doing or paper. 365 00:47:55.020 --> 00:47:59.040 Lucía Duarte: Okay, you can do as much better with the parents. 366 00:47:59.100 --> 00:48:02.610 Lucía Duarte: So that's that's something new going on on that side. 367 00:48:02.820 --> 00:48:03.510 Daniele Barducci: And went to share. 368 00:48:03.570 --> 00:48:05.940 Daniele Barducci: I think i've missed it, you might be sent me the paper. 369 00:48:06.420 --> 00:48:08.040 Lucía Duarte: yeah Of course I will. 370 00:48:09.000 --> 00:48:09.360 Daniele Barducci: If I. 371 00:48:10.170 --> 00:48:11.040 Lucía Duarte: die from Monday. 372 00:48:11.100 --> 00:48:14.790 Daniele Barducci: Is smoking Okay, I think i'm he said okay yeah. 373 00:48:15.810 --> 00:48:16.950 Lucía Duarte: Just so fresh. 374 00:48:18.270 --> 00:48:18.480 Daniele Barducci: yeah. 375 00:48:19.650 --> 00:48:20.520 Daniele Barducci: Okay, thank you that's. 376 00:48:20.730 --> 00:48:22.500 Lucía Duarte: that's each other, thank you for your nice talk. 377 00:48:23.580 --> 00:48:24.360 Daniele Barducci: thanks for the question of. 378 00:48:26.040 --> 00:48:32.760 Matthew Citron: It thanks very much the new I think we're probably going to have to move to the next speaker to stay on time. 379 00:48:34.230 --> 00:48:37.500 Matthew Citron: But thanks again for the good day. 380 00:48:37.680 --> 00:48:38.010 Matthew Citron: Thank you. 381 00:48:41.550 --> 00:48:42.390 Matthew Citron: Okay. 382 00:48:45.960 --> 00:48:50.370 Matthew Citron: So I think our last speaker is Lisa are you connected. 383 00:48:53.460 --> 00:48:54.570 Lovisa Rygaard: Yes, can you hear me. 384 00:48:55.680 --> 00:48:56.010 Matthew Citron: Yes. 385 00:48:56.880 --> 00:48:59.220 Lovisa Rygaard: Okay, great I will screen share. 386 00:49:00.330 --> 00:49:01.020 Matthew Citron: Good Thank you. 387 00:49:02.760 --> 00:49:03.690 Lovisa Rygaard: Can you see my screen. 388 00:49:05.490 --> 00:49:06.120 Matthew Citron: Yes. 389 00:49:07.320 --> 00:49:10.350 Lovisa Rygaard: Okay, great, then I will start right away. 390 00:49:11.460 --> 00:49:21.630 Lovisa Rygaard: Okay, so Hello everyone, thank you for having me here today, and my name is Lisa I am currently a master student at Uppsala university. 391 00:49:22.140 --> 00:49:37.890 Lovisa Rygaard: And I will do a talk on the topic of long live particles at the FCC and I will focus on, and the officer presenting some of the results from my own master's thesis for a long lives having you two laptops. 392 00:49:41.790 --> 00:49:53.190 Lovisa Rygaard: So to start off the FCC is the electron positron stage of the future circular later and the SEC itself is a tunnel of 100 kilometers. 393 00:49:53.790 --> 00:50:03.960 Lovisa Rygaard: circumference with two different stages, so, starting with the SEC V, as a first generation higgs electorate and talk factory a tight luminosity. 394 00:50:04.650 --> 00:50:12.720 Lovisa Rygaard: And then the SEC will continue, asked the FCC ah ah as a energy from to your head on collider. 395 00:50:13.590 --> 00:50:24.240 Lovisa Rygaard: And so the SEC is a frontier higgs top electro we can flavor factory where we can directly discover new physics and such as long as particles. 396 00:50:25.080 --> 00:50:34.860 Lovisa Rygaard: And so, currently there are two detector concepts for the FCC first the cmt design by the Sunday in your collider to take the group. 397 00:50:35.310 --> 00:50:44.100 Lovisa Rygaard: which has been adapted for the SEC, and then there's also the new idea design, which has been specifically designed for this new SCI fi. 398 00:50:44.640 --> 00:50:56.400 Lovisa Rygaard: And that's we are currently still in the preparation stages for the FCC there's still a lot of opportunities to design general purpose detectors with longer particles in mind, from start. 399 00:50:57.300 --> 00:51:04.860 Lovisa Rygaard: With opportunities for new and creative designs and one example, could be the case detector which is dedicated for long lifetimes. 400 00:51:07.230 --> 00:51:15.090 Lovisa Rygaard: And there are, of course, a lot of ongoing work on this topic, and some of it presented in this no less white White Paper. 401 00:51:15.930 --> 00:51:30.540 Lovisa Rygaard: Where three longest physics cases are presented, I have in utero leptons accent like particles and higgs boson dance with exotic the case to longer particles and i'm part of the ongoing work is also my own master's thesis with simulations. 402 00:51:30.570 --> 00:51:32.400 Lovisa Rygaard: Of lovely have to bring you to leptons. 403 00:51:32.880 --> 00:51:37.920 Lovisa Rygaard: At the FCC and, as I said, that will be the main focus of this talk. 404 00:51:39.780 --> 00:51:48.960 Lovisa Rygaard: So, having electrons or right handed sterile have been neutrinos and they could shed some light on some of the open questions of the standard model. 405 00:51:49.830 --> 00:51:56.460 Lovisa Rygaard: Such as neutrino monsters very on symmetry and dark matter and I saw you here to derive the. 406 00:51:57.240 --> 00:52:06.030 Lovisa Rygaard: sensitivity of block from the physics briefing book with each nails mix to electron neutrinos So you can see here the REACH for html. 407 00:52:06.960 --> 00:52:19.050 Lovisa Rygaard: On the for the SEC on the terrorists, he run for for the mouse and the electron cufflinks, and so the FCC will prob space not constrained by. 408 00:52:19.530 --> 00:52:33.810 Lovisa Rygaard: astrophysics or cosmology and complimentary to accelerator and neutrino prospects and also the parameters based for the he knows at the SEC, he is also very good for barrier genesis. 409 00:52:36.450 --> 00:52:44.340 Lovisa Rygaard: Yes, and onto the simulations that we have made currently and we have made simulations for the SEC see Paul run. 410 00:52:45.060 --> 00:52:52.290 Lovisa Rygaard: As a story that can be built upon in the future, and we have seen related processes in the fireman diagrams to the right. 411 00:52:52.740 --> 00:53:02.100 Lovisa Rygaard: With one heavy neutral left arm coupling to electron neutrinos and we have defined the final states to be electron electron Yun jie neutrinos. 412 00:53:02.820 --> 00:53:13.530 Lovisa Rygaard: And the simulation something generated using math math graph PC and office and with the latest idea card for the detector reconstructions. 413 00:53:14.250 --> 00:53:24.090 Lovisa Rygaard: we've also used one minute on that html with the model at the top here and all the analysis has been made in the FCC framework. 414 00:53:24.930 --> 00:53:41.430 Lovisa Rygaard: and asked for the analysis over a long lived and having you two electrons we have used this relation here for the decay length and so we can see that for HMS with smaller losses and smaller cufflinks we can achieve longer the key links. 415 00:53:44.280 --> 00:53:59.610 Lovisa Rygaard: Yes, and here we will see some of the results for the king's book that we constructed with the generated and reconstructed level four five benchmark signals here with different Moses and different cufflinks. 416 00:54:00.810 --> 00:54:15.300 Lovisa Rygaard: And, and then the key length here is shown in 3D so X y&z directions and this confirms that the signal kinematics behave as expected, both generated and reconstructed level. 417 00:54:15.900 --> 00:54:34.470 Lovisa Rygaard: Because we can see that for eight and elsewhere it's smaller mouse or with or with smaller cufflinks we will achieve longer the killings and also, we can also see that eaten us we longer dickie length gave us more and more reduce number of reconstructed events. 418 00:54:37.980 --> 00:54:48.690 Lovisa Rygaard: Okay, so over to the to also introducing some of the signal and background analysis that we have done, we have used centrally produced background samples with the idea detector. 419 00:54:49.140 --> 00:55:05.010 Lovisa Rygaard: And they've been generated similarly us the signals first here we can look at the total missing energy to the right and we have it for the five background samples that we use, and then we have to benchmark signals with different couplings. 420 00:55:06.330 --> 00:55:15.870 Lovisa Rygaard: And also note that we are looking at the total missing energy for the electron positron collider and not only the transfers missing energy and. 421 00:55:16.800 --> 00:55:28.980 Lovisa Rygaard: And for the first event selections that we made in this analysis, we required required the total missing my mentor to be greater than 10 gv, as you can see your soul. 422 00:55:30.510 --> 00:55:39.450 Lovisa Rygaard: And another interesting variable that we've looked at is the transfers impact parameter D zero of the electron tracks from the eternal decay. 423 00:55:39.990 --> 00:55:49.200 Lovisa Rygaard: And so to the left you'll see the D zero and parameter in the transverse plane just an image and then you have the two parts to the right. 424 00:55:49.740 --> 00:56:00.840 Lovisa Rygaard: And they're both the same cloth but in different ranges on the X axis of the impact parameter again with the same background samples and the to benchmark signals here. 425 00:56:01.500 --> 00:56:09.960 Lovisa Rygaard: And we can see on the right thoughts that we can achieve pretty large values for the impact parameter for long live having electrons. 426 00:56:11.100 --> 00:56:29.490 Lovisa Rygaard: And here we have started with that transfers impact parameter, but in the future, we can and should move on to this 3D impact parameter and and also here and to start off in our event selections we have required the diesel to be greater than 0.5 millimeters. 427 00:56:31.980 --> 00:56:41.520 Lovisa Rygaard: Yes, and here we have some results of the first attempt at events elections, so the table, shows the cumulative expect the number of events. 428 00:56:41.970 --> 00:56:50.130 Lovisa Rygaard: After each selections looking from left to right on the reconstructive valuables and for 150 per act upon. 429 00:56:50.610 --> 00:57:00.630 Lovisa Rygaard: And, as I said, we have used the takedown missing momentum and also the transition that parameter and the Beatles are on you on sculptors and jets. 430 00:57:01.110 --> 00:57:12.420 Lovisa Rygaard: And, and these are four five benchmark signals again with a total of 50,000 raw number of the simulated events. 431 00:57:13.230 --> 00:57:18.750 Lovisa Rygaard: And then moving on here we can see some of the results for the background samples. 432 00:57:19.740 --> 00:57:31.140 Lovisa Rygaard: And the background samples that were simulated between 10 to the power seven to 10 to the power of nine of total raw number of events, and you can see, after the. 433 00:57:31.890 --> 00:57:51.210 Lovisa Rygaard: final selection to the right we have in some cases still quite relatively large uncertainties that limits our selections and analysis, so one of the next steps that we would like to see is to be able to simulate larger background samples, so we can reduce these uncertainties. 434 00:57:54.600 --> 00:58:04.440 Lovisa Rygaard: Yes, and here you can see a preliminary sensitivity two blocks from our from after our selections where. 435 00:58:04.950 --> 00:58:14.340 Lovisa Rygaard: Our choice of merits use the number of signal events and the number of background events and the uncertainty on the background, after all these elections. 436 00:58:14.790 --> 00:58:24.030 Lovisa Rygaard: And the plot here shows that simulated parameters space for the agent mouse and Kathleen, and so the white areas are. 437 00:58:24.630 --> 00:58:46.950 Lovisa Rygaard: serial number old signal events after these elections, you can also see to contours here first s equals 0.05 includes here and then s equals 0.01 yellow and we have also included a theoretical prediction for comparison in read from this article here. 438 00:58:48.510 --> 00:59:06.060 Lovisa Rygaard: and the first thing to note here would be good, that the theoretical prediction includes all of the each of the cables which our analysis does not currently, and so it would be expected that the theoretical prediction has a broader sensitivity and and ourselves currently. 439 00:59:09.840 --> 00:59:22.680 Lovisa Rygaard: Oh, and also, just to mention, as I said before, we are including the uncertainty on the backgrounds for our sensitivity, so of course that affects this sensitivity plot as well. 440 00:59:27.390 --> 00:59:44.400 Lovisa Rygaard: Yes, and finally, I just want to mention some of the next steps that we, we would like to see in the near future, possibly so, as I said, we are limited by the background statistics currently so it would be very nice in the future to be able to. 441 00:59:45.600 --> 00:59:54.960 Lovisa Rygaard: produce larger samples and other options to explore in the future could be background fits to the right, you can see an example, this were. 442 00:59:56.670 --> 01:00:09.810 Lovisa Rygaard: A background fits for the transfers in fact parameter with four different impact input functions, but again larger background samples would also benefits and this. 443 01:00:10.530 --> 01:00:16.350 Lovisa Rygaard: These fits as well, because then we could, with more confidence decide on one correct it. 444 01:00:16.890 --> 01:00:26.940 Lovisa Rygaard: And, and also some other next steps would be to investigate some additional variables for our selections and also to optimize this lessons that we have now. 445 01:00:27.480 --> 01:00:44.640 Lovisa Rygaard: And, of course, also add a the remaining that came out for the sensitivity analysis and and we could also explore some different detector configurations, and with that I say thank you for having me, and thank you for listening. 446 01:00:49.860 --> 01:00:50.700 Matthew Citron: Please very much. 447 01:00:51.810 --> 01:00:52.920 Matthew Citron: If you have any. 448 01:00:54.720 --> 01:00:55.830 Matthew Citron: Questions I see. 449 01:00:56.880 --> 01:00:58.350 Matthew Citron: Well that's not plasma hand. 450 01:01:00.480 --> 01:01:07.440 Matthew Citron: There was a very nice very interesting to see the sensitivity and Joe nice to see the simulation of background as well. 451 01:01:09.210 --> 01:01:18.180 Matthew Citron: I think it's quite unusual to have that already for for detective prefers than the feature sets it's great to have something so robust. 452 01:01:19.380 --> 01:01:19.950 Matthew Citron: and 453 01:01:21.810 --> 01:01:29.250 Matthew Citron: i'm curious for the simulation of the detective how did you decide the resolution in the performance. 454 01:01:32.310 --> 01:01:35.400 Matthew Citron: What we do you have an idea what that was based on. 455 01:01:36.390 --> 01:01:39.900 Lovisa Rygaard: And do you mean that using the idea detector and that's. 456 01:01:40.800 --> 01:01:45.750 Matthew Citron: yeah so, for example, the the the resolution of the D zero. 457 01:01:48.480 --> 01:01:56.970 Lovisa Rygaard: And i'm not actually sure myself, we have used the assessment, the input card for the idea detector. 458 01:01:56.970 --> 01:01:57.360 Matthew Citron: Which is. 459 01:01:57.570 --> 01:02:04.800 Lovisa Rygaard: The SEC framework, so I haven't really myself in looking at any more details on that. 460 01:02:06.330 --> 01:02:08.280 Matthew Citron: Okay, so it looks like actually if I. 461 01:02:09.660 --> 01:02:12.630 Matthew Citron: put everything on the background is mainly coming from toe so there's a. 462 01:02:13.740 --> 01:02:15.660 Matthew Citron: Really displaced things okay interesting. 463 01:02:17.130 --> 01:02:17.640 Matthew Citron: Okay, thank you. 464 01:02:17.790 --> 01:02:18.450 Juliette Alimena: Good choice, he. 465 01:02:20.700 --> 01:02:28.530 Juliette Alimena: says that's a collaborator louise's I could just chime into to say that all this is implemented in delphia so. 466 01:02:28.710 --> 01:02:42.060 Juliette Alimena: that's what what we're assuming, and also that it's a I think it's what's you know the FCC collaboration now is i'm assuming as the default, but unfortunately I don't know any more details on that. 467 01:02:43.080 --> 01:02:55.470 Matthew Citron: Okay, but yeah I was just curious kind of what kind of parameters you put into the Office, for example, for the the resolution to track will be able to achieve on the p zero or something like this, but. 468 01:02:57.150 --> 01:02:59.160 Juliette Alimena: I understand and I don't have. 469 01:02:59.190 --> 01:03:01.500 Matthew Citron: Those numbers i'm sure yeah thanks. 470 01:03:02.100 --> 01:03:06.240 Matthew Citron: I was just curious Okay, I see like think that's a question that we should probably. 471 01:03:06.480 --> 01:03:08.310 Lingfeng Li: Have a question and a comment. 472 01:03:08.400 --> 01:03:18.960 Lingfeng Li: I think i'm not the collaborator i'm not the expert have to claim that, but I believe that latest idea detective card intelligence actually uses some kind of realistic. 473 01:03:19.950 --> 01:03:30.150 Lingfeng Li: Though co simplified physical model of the of the vertex resolution, for example, what if you look at their card you actually find. 474 01:03:30.780 --> 01:03:43.410 Lingfeng Li: Each layers of trackers okay just what's the resolution of each layer the millimeter and then also the thickness, so I think the authors, if you want, I can point you to the reference okay. 475 01:03:45.150 --> 01:03:49.740 Lingfeng Li: For example, the Multi scattering effect that introduced in each layer and they have. 476 01:03:49.800 --> 01:03:51.720 Lingfeng Li: Like to introduce 10s of layers of this. 477 01:03:51.750 --> 01:04:06.810 Lingfeng Li: Okay dude I mean just according to the actual detector profile is a pretty complicated business is pretty model is that but it's only available at idea detector because it's the latest technique yeah. 478 01:04:07.110 --> 01:04:08.010 Lingfeng Li: So another. 479 01:04:08.100 --> 01:04:14.640 Lingfeng Li: Question so So this is the comment again i'm not the collaborative this on the other hand, I have a question. 480 01:04:15.090 --> 01:04:16.920 Lingfeng Li: On likely, the framework. 481 01:04:17.670 --> 01:04:26.130 Lingfeng Li: Analysis framework you use do you use edm for http framework that's being used for many FCC upcoming works. 482 01:04:27.180 --> 01:04:35.910 Lingfeng Li: For example, for vertex thing vertex tracking and also like say the real test reconstruction because that's not included in the pelvis package. 483 01:04:37.530 --> 01:04:45.630 Lovisa Rygaard: And I think, maybe and Juliet gnosis better i'm not actually sure, and so. 484 01:04:47.100 --> 01:04:49.800 Juliette Alimena: Yes, we are using edm yep. 485 01:04:50.220 --> 01:04:50.730 Lingfeng Li: Thank you. 486 01:04:54.840 --> 01:04:59.130 Matthew Citron: Okay, thank you, I think we should close the session there. 487 01:05:00.420 --> 01:05:05.370 Matthew Citron: And then looking to try and get back on time we'll have a. 488 01:05:07.020 --> 01:05:09.420 Matthew Citron: five minute coffee break. 489 01:05:10.650 --> 01:05:14.280 Matthew Citron: And so my watch that means we should return at. 490 01:05:16.110 --> 01:05:20.490 Matthew Citron: 432 Okay, and thanks again to the visa. 491 01:05:20.520 --> 01:05:20.790 José Zurita: and 492 01:05:20.850 --> 01:05:21.720 Matthew Citron: All the speakers of. 493 01:05:21.750 --> 01:05:25.980 Matthew Citron: The dedicated Texas and teach little particle circus see you back here soon.