WEBVTT 1 00:00:06.270 --> 00:00:08.160 Edgar Carrera: Alright cool so. 2 00:00:09.750 --> 00:00:17.160 Edgar Carrera: So we are back, we are going to work on the new on subjects now and for this. 3 00:00:18.119 --> 00:00:28.080 Edgar Carrera: will be picking up from where we left, so I have to ask you to download these files, the poet file that we modified during the last episode. 4 00:00:28.740 --> 00:00:45.270 Edgar Carrera: And the electron analyzer just for completeness, so it doesn't break and the bill file will already include the view, so it may be already the bill file includes the strands in tracks. 5 00:00:46.350 --> 00:00:55.530 Edgar Carrera: library and the IP tools library that we use in order to to get the parameter impact parameter in three dimensions. 6 00:00:57.420 --> 00:01:06.210 Edgar Carrera: Okay, so make sure you download these files and I will do the same, although I already did. 7 00:01:08.760 --> 00:01:10.710 Edgar Carrera: Because we're going to use them okay. 8 00:01:14.340 --> 00:01:22.050 Edgar Carrera: So just as an overview for the moon reconstruction, as you know, the m is the. 9 00:01:23.820 --> 00:01:37.710 Edgar Carrera: meals, are the M and cms because our name is compact me on solenoid, and this is important because me on sorry constructed essentially taking all the information from the different subsystems. 10 00:01:38.460 --> 00:01:45.930 Edgar Carrera: And perhaps is nicely summarized and this extract from this article, which is saying something like. 11 00:01:47.880 --> 00:01:48.660 Edgar Carrera: We. 12 00:01:49.920 --> 00:02:01.500 Edgar Carrera: We take we construct nuance using information from the tracking system like you see here also from the color emitters because me neurons pass through them. 13 00:02:02.130 --> 00:02:13.230 Edgar Carrera: And then the main the position of energy happens in the moon chambers, the moon chambers or neon spectrometer in general have different technologies. 14 00:02:14.070 --> 00:02:26.550 Edgar Carrera: And the tracks that we find for nuance can be global tracks, meaning that they are found along the whole trajectory or. 15 00:02:27.150 --> 00:02:36.480 Edgar Carrera: outer tracks, just as part of the new on a spectrometer or internal tracks, meaning that it just they formally in the tracker. 16 00:02:37.230 --> 00:02:53.670 Edgar Carrera: They can be a combination as well, so depending on depending on which sub detector is used to reconstruct meals, you can look at come across and different pieces of code with this kind of naming so you have local nuance. 17 00:02:54.960 --> 00:03:04.410 Edgar Carrera: tracker muon stand alone me on a column yawns are gullible means, and I think I have mentioned, why these names. 18 00:03:05.700 --> 00:03:07.200 Edgar Carrera: Are the way they they are. 19 00:03:09.090 --> 00:03:22.950 Edgar Carrera: Of course, the the Code and the classes for immune reconstruction are available in cms is w in some doctor patient can also be found in the CNS open data guide, but for us. 20 00:03:24.870 --> 00:03:27.510 Edgar Carrera: I think, for now, that it's a nice summary. 21 00:03:29.940 --> 00:03:38.460 Edgar Carrera: And so, as the other particles means share many features with electrons and other particles in terms of the. 22 00:03:39.480 --> 00:03:50.160 Edgar Carrera: methods and the way that we identify them, but at the new analyzer class in this point repository has other variables that are. 23 00:03:52.500 --> 00:03:54.480 Edgar Carrera: Separate or that are. 24 00:03:55.530 --> 00:04:05.640 Edgar Carrera: uniquely determined for for me ions so let's explore the moon ED analyzer let's open it first so that's what i'm going to do. 25 00:04:06.390 --> 00:04:17.490 Edgar Carrera: i'm going to open the moon and aleister it leaves where the rest of the analyzers are, as you saw already the moon analyzer is in the source directory. 26 00:04:18.150 --> 00:04:31.110 Edgar Carrera: And again, it repeats right all these analyzers repeat themselves, you have to import this class which comes from the bad candidates, as the main source of information. 27 00:04:32.070 --> 00:04:49.590 Edgar Carrera: And then we also need the vertex glasses, so we add them here again because of the tracking properties, we need this vertex and the same The rest is pretty much the same as the rest, except that the variable some of the variables are explicit or. 28 00:04:52.710 --> 00:04:55.200 Edgar Carrera: exclusive for me yawns like this one's here. 29 00:04:57.210 --> 00:04:58.140 Edgar Carrera: Okay, so. 30 00:05:01.980 --> 00:05:02.880 Edgar Carrera: let's look at. 31 00:05:05.700 --> 00:05:11.670 Edgar Carrera: So, so, by the way, I suppose you you already noticed this. 32 00:05:12.990 --> 00:05:17.340 Edgar Carrera: When we were discussing this in the pre exercises, but just to repeat. 33 00:05:19.410 --> 00:05:31.920 Edgar Carrera: You essentially have to create some objects, where you store the collections of neurons that you're interested in right or any collection that you're interested in and then from, then you can obtain the information. 34 00:05:32.760 --> 00:05:46.380 Edgar Carrera: And there's the retrieval of these objects can be configured and you do this in the constructor so from the configuration file, you can extract the arguments as needed. 35 00:05:47.250 --> 00:06:08.940 Edgar Carrera: Again, you save you you you book this variables, the containers and the branches for the for the root file and then you loop over the events under these analyze class, so the structure is pretty much the same as any other ED analyzing so let's look at some. 36 00:06:13.320 --> 00:06:21.540 Edgar Carrera: let's look at some immune identification and isolation variables again the variables related to the. 37 00:06:22.590 --> 00:06:36.060 Edgar Carrera: tracking are the same, we have them une de X, Y as before noon dizzy as the impact parameters in this dimensions, with their respective uncertainties. 38 00:06:38.400 --> 00:06:39.300 Edgar Carrera: We also. 39 00:06:44.850 --> 00:06:51.030 Edgar Carrera: yeah for accessing them, we need the the primary vertex position, as you can see here. 40 00:06:52.890 --> 00:07:03.840 Edgar Carrera: And we have this this method called me on best track with which gives you the the track of the moon essentially as something similar, as for the electrons before. 41 00:07:06.690 --> 00:07:11.640 Edgar Carrera: You have the same containers that need to be clear, before we start information. 42 00:07:15.120 --> 00:07:19.530 Edgar Carrera: And finally, regarding these isolation variables. 43 00:07:24.090 --> 00:07:26.370 Edgar Carrera: We have some some of them that. 44 00:07:30.000 --> 00:07:42.330 Edgar Carrera: whose names suggests how they are formed again the concept of isolation is the same across different objects, and it is likewise for for me ones. 45 00:07:42.810 --> 00:07:51.300 Edgar Carrera: But some of these variables, the implementation of some of these variables are explicit in the code so let's look at those. 46 00:07:52.140 --> 00:07:58.290 Edgar Carrera: You may notice that, in the code, you have this ISO 03 and ISO 04 and. 47 00:07:59.250 --> 00:08:14.790 Edgar Carrera: Four from the implementation, you can see that that these are isolation variables that are relative, so this is what I was mentioning before essentially what you do is to check the energy around the particle in a cone of. 48 00:08:15.600 --> 00:08:34.620 Edgar Carrera: Point three or point four right, this is a Cone in in angular Cone and then compare it to the energy of the particle itself and of course that's a relative variable and that's how you form these isolation variables relative isolation bibles. 49 00:08:40.020 --> 00:08:41.340 Edgar Carrera: Okay, so. 50 00:08:41.430 --> 00:08:43.470 Edgar Carrera: For this lesson I hope it's a. 51 00:08:43.710 --> 00:08:48.180 Edgar Carrera: little bit less intense, we have two activities, the first one. 52 00:08:48.330 --> 00:08:49.590 teeba: is to. 53 00:08:50.880 --> 00:08:52.500 Edgar Carrera: align the. 54 00:08:52.650 --> 00:08:53.490 Edgar Carrera: me one. 55 00:08:54.240 --> 00:09:04.770 Edgar Carrera: analyzer with the electron analyzer remember that we added this SP as IP 3D variable the significance of the 3D impact parameter. 56 00:09:05.430 --> 00:09:15.750 Edgar Carrera: And we needed for the new ones as well, because for the analysis that we are doing on Wednesday, we need this variable in both of these lessons electrons and nodes that's that's the goal. 57 00:09:16.380 --> 00:09:17.550 Edgar Carrera: And so the first test. 58 00:09:17.790 --> 00:09:22.680 Edgar Carrera: Now that you know how to do it is to look at the electron analyzer. 59 00:09:23.220 --> 00:09:24.390 Edgar Carrera: Do something. 60 00:09:24.780 --> 00:09:40.140 Edgar Carrera: Almost exactly similar for the new one and implement the the S IP 3D for the moon analyzer so that's our task some i'm going to try to do this, along with you. 61 00:09:40.860 --> 00:09:54.480 Edgar Carrera: But if you want to do this faster than I can then you're very welcome to to go ahead, so I have my electron analyzer open here and my new an analyzer and all right i'm going to try to do this. 62 00:09:56.070 --> 00:09:57.000 Edgar Carrera: What is the best way. 63 00:10:09.300 --> 00:10:11.340 Edgar Carrera: yeah well, the first thing you know as. 64 00:10:12.570 --> 00:10:21.630 Edgar Carrera: is to add the the the libraries, that we need so here are the libraries, I think I forgot to mention this before, but. 65 00:10:22.650 --> 00:10:30.750 Edgar Carrera: But we needed this transition track the libraries and the IP tools libraries, that you so we were extracting this information with. 66 00:10:32.460 --> 00:10:36.990 Edgar Carrera: So i'm going to add them also for the nuance and that's going to be at here. 67 00:10:38.400 --> 00:10:49.740 Edgar Carrera: Okay i'm going to copy that here, and then remember that we booked some of these variables, a couple of these new variables so i'll do the same, but I have to change the name. 68 00:10:51.390 --> 00:10:53.280 Edgar Carrera: Of course you can download the. 69 00:10:53.280 --> 00:10:54.870 Edgar Carrera: solution but that's not fun. 70 00:10:55.080 --> 00:11:04.380 Edgar Carrera: I can do it by myself i'll just have to change a few things i'll rename this as new on. 71 00:11:06.810 --> 00:11:24.360 Edgar Carrera: Instead of an electron I give them the same name for the variables that's fine and then nothing to touch here, except that I need to make room in my route file and now create a couple of branches for this. 72 00:11:27.660 --> 00:11:29.730 Edgar Carrera: And I have to rename them, of course. 73 00:11:33.990 --> 00:11:37.830 Edgar Carrera: And here i'll have to replace the electron. 74 00:11:41.880 --> 00:11:42.150 VU- Andrius Juodagalvis: That I. 75 00:11:42.990 --> 00:11:44.160 VU- Andrius Juodagalvis: don't share your screen. 76 00:11:44.490 --> 00:11:44.910 Oh. 77 00:11:46.260 --> 00:11:47.190 Edgar Carrera: matt you didn't. 78 00:11:48.390 --> 00:11:49.410 Edgar Carrera: You didn't alert me. 79 00:11:57.480 --> 00:12:03.960 Edgar Carrera: Okay sorry i'll repeat this right so we're trying to do what we're trying to do is, you can see now right. 80 00:12:05.310 --> 00:12:07.470 Edgar Carrera: Well, thanks for thanks for letting me know. 81 00:12:09.990 --> 00:12:10.260 Edgar Carrera: yeah. 82 00:12:11.670 --> 00:12:27.060 Edgar Carrera: yeah so so again for those who may be joining later didn't follow we're trying to add again had this variable that we added for electrons we were going to try to we're trying to do this. 83 00:12:27.090 --> 00:12:28.620 Edgar Carrera: The same for me once. 84 00:12:29.670 --> 00:12:32.220 Edgar Carrera: And now we know how to do it so. 85 00:12:32.490 --> 00:12:36.780 Edgar Carrera: we'll just replicate what we did for electron So the first thing that I did. 86 00:12:37.080 --> 00:12:59.040 Edgar Carrera: was to copy the the heather the the actual heather that I need for getting the transcript tracks and the IP tools together into the mian so I just copied that and then I added these two variables here for the nuance I changed the name and I booked. 87 00:13:00.480 --> 00:13:27.120 Edgar Carrera: Space in my life in my root file by adding these branches and some description of them, and I was about to change the name of these ones, I have to change them to new on, and I will do that right now for this one and essentially all the ones that follow so that's right. 88 00:13:28.680 --> 00:13:29.220 Edgar Carrera: Then. 89 00:13:30.660 --> 00:13:33.240 Edgar Carrera: If I go if I keep going. 90 00:13:35.940 --> 00:13:37.290 Edgar Carrera: right if I keep going. 91 00:13:39.090 --> 00:13:40.440 Edgar Carrera: I remember that. 92 00:13:40.980 --> 00:13:45.930 Edgar Carrera: We had to get some sort of primary vertex. 93 00:13:46.680 --> 00:13:47.130 Okay. 94 00:13:49.770 --> 00:13:52.410 Edgar Carrera: We have to get the the primary vertex because the. 95 00:13:52.620 --> 00:13:53.460 Edgar Carrera: Remember the. 96 00:13:53.940 --> 00:13:54.930 Edgar Carrera: This is. 97 00:13:56.700 --> 00:14:04.230 Edgar Carrera: Absolute impact the render method takes the primary vertex as the reference point that's the does the issue. 98 00:14:05.640 --> 00:14:06.420 Edgar Carrera: And so. 99 00:14:07.710 --> 00:14:22.980 Edgar Carrera: forth fortunately for news is a little bit easier because the primary vertex is already there, so this is the same this primary vertex already works for us, so we don't have to recalculate it, it was already needed for some of the. 100 00:14:23.010 --> 00:14:29.010 Edgar Carrera: variables that are obtain here, for instance, this lose medium and. 101 00:14:29.040 --> 00:14:32.580 Edgar Carrera: tight variable that refer to the same things that we discussed for. 102 00:14:32.580 --> 00:14:47.010 Edgar Carrera: electrons okay and alright so so that is done I don't have to worry about that I already have my primary vertex and the next thing is just to get the information. 103 00:14:48.540 --> 00:14:53.940 Edgar Carrera: So i'll recap be or copy this tracked. 104 00:14:55.320 --> 00:15:01.350 Edgar Carrera: Here and i'll put it, a similar place just underneath to maintain the order. 105 00:15:02.910 --> 00:15:07.530 Edgar Carrera: Again I create an object which has. 106 00:15:09.330 --> 00:15:12.210 Edgar Carrera: Which is called the truck builder essentially. 107 00:15:13.290 --> 00:15:22.110 Edgar Carrera: obtains all the information that he needs for the events from the event setup essentially that's what it what it do what it does and. 108 00:15:25.860 --> 00:15:31.890 Edgar Carrera: And yeah with this thing you can you can create the transient truck builder. 109 00:15:33.570 --> 00:15:41.340 Edgar Carrera: That creates your transit trucks that you need to determine for determining this this parameter that we need and. 110 00:15:42.480 --> 00:15:58.650 Edgar Carrera: It does it by starting from the track of the object so here, I have to pass the track of the object the track of the object is me on course, but it's not called GS F tracks like have to check how it is called, and. 111 00:15:58.680 --> 00:16:01.530 Edgar Carrera: I suppose is me on best track, as you can see here. 112 00:16:01.950 --> 00:16:03.090 Edgar Carrera: Okay, so I guess. 113 00:16:03.150 --> 00:16:04.050 Edgar Carrera: I can just. 114 00:16:06.270 --> 00:16:11.460 Edgar Carrera: add this as me on best track that will give me the. 115 00:16:11.490 --> 00:16:12.750 Edgar Carrera: Best drug for the moon. 116 00:16:13.860 --> 00:16:32.400 Edgar Carrera: And the absolute impact that under will take care of building the measure this pair object for me if I give the transient track and the primary vertex but my primary vertex as so above is called PV so i'll just give it that. 117 00:16:33.540 --> 00:16:42.540 Edgar Carrera: And the rest, should be the same, except that i'm calling my variables me on and me on here and not electron. 118 00:16:43.920 --> 00:16:46.230 Edgar Carrera: And that's that should be at. 119 00:16:51.090 --> 00:17:01.140 Edgar Carrera: I can compare with the answer, or you can download the answer if you feel more comfortable that way, but let me then me check that. 120 00:17:03.210 --> 00:17:04.980 Edgar Carrera: That I did everything correctly. 121 00:17:09.180 --> 00:17:12.180 Edgar Carrera: So my answer should be here. 122 00:17:26.970 --> 00:17:29.040 Edgar Carrera: Oh, see I forgot to clear my. 123 00:17:30.120 --> 00:17:30.720 I think. 124 00:17:32.730 --> 00:17:34.020 I forgot. 125 00:17:36.960 --> 00:17:45.570 Edgar Carrera: yeah well it doesn't make too much difference if you declare it as a double or as a float for our purposes, but I suppose in my answer, I was using float. 126 00:17:46.590 --> 00:17:50.400 Edgar Carrera: That doesn't really matter, but I did forget to. 127 00:17:51.690 --> 00:17:57.150 Edgar Carrera: I did forget to clear this variable so that's a good thing, remember, I have to. 128 00:17:58.710 --> 00:18:00.030 Edgar Carrera: Just copy them from here. 129 00:18:09.390 --> 00:18:09.750 Edgar Carrera: Okay. 130 00:18:21.780 --> 00:18:24.240 Edgar Carrera: Alright that's nothing that's good. 131 00:18:28.410 --> 00:18:32.100 Edgar Carrera: So I save it and I have to recombine. 132 00:19:09.120 --> 00:19:18.090 Edgar Carrera: Okay, it looked like it compile and now I have to run it again to check that my variables are being written. 133 00:19:19.680 --> 00:19:21.690 Edgar Carrera: Under the nuance branch. 134 00:19:23.220 --> 00:19:25.470 Edgar Carrera: Or the meals directory inside my fire. 135 00:19:55.110 --> 00:19:57.900 Edgar Carrera: Alright, so I opened this. 136 00:20:03.600 --> 00:20:06.750 Edgar Carrera: I check my nuance and the variable should be there. 137 00:20:08.190 --> 00:20:12.450 Edgar Carrera: And there you go the variable exists, and I think i'm happy. 138 00:20:18.210 --> 00:20:19.620 Edgar Carrera: Okay, so. 139 00:20:23.490 --> 00:20:26.220 Edgar Carrera: I don't know if you were able to follow. 140 00:20:27.510 --> 00:20:28.380 Edgar Carrera: If not. 141 00:20:29.700 --> 00:20:31.530 Edgar Carrera: The solution is. 142 00:20:34.290 --> 00:20:36.360 Edgar Carrera: is right there, as you can see. 143 00:20:37.680 --> 00:20:38.970 Edgar Carrera: You should point you to. 144 00:20:40.050 --> 00:20:44.520 Edgar Carrera: To a file that can be saved as me on analyzer that's you see. 145 00:20:46.230 --> 00:20:46.890 Edgar Carrera: And it's your run. 146 00:21:09.150 --> 00:21:15.330 Edgar Carrera: Okay, and i'm gonna let you do this one done look at the solution Okay, because it's just one liner. 147 00:21:16.800 --> 00:21:23.610 Edgar Carrera: But it's a little bit interesting to see whether you, you get the feeling of where to look. 148 00:21:26.220 --> 00:21:45.630 Edgar Carrera: This is another variable that was used in his analysis that we pretend to reproduce say it is a variable that we don't currently have, in the version of our immune analyzer and it is a, it is very similar is an isolation variable but it takes another. 149 00:21:48.240 --> 00:21:57.810 Edgar Carrera: parameter here, which is related to the contamination due to pile up Okay, so you can read the description here, it says essentially. 150 00:21:59.040 --> 00:22:01.230 Edgar Carrera: says that let's see. 151 00:22:03.480 --> 00:22:13.320 Edgar Carrera: Well, I read it, I read the whole thing right, so it says the moon isolation is based on the some of the PT of the charge and neutral hydrants. 152 00:22:14.340 --> 00:22:23.010 Edgar Carrera: And gay, so you have here the the charge and you draw hydrants I may have, I may have. 153 00:22:26.640 --> 00:22:27.540 Edgar Carrera: This correct. 154 00:22:33.420 --> 00:22:33.810 Excellent. 155 00:22:46.200 --> 00:22:46.470 well. 156 00:22:55.470 --> 00:22:56.040 Edgar Carrera: Well, anyway. 157 00:22:58.260 --> 00:23:01.320 Edgar Carrera: What will check later But OK, so the. 158 00:23:02.460 --> 00:23:10.380 Edgar Carrera: yeah it says that the moon isolation is based on the sum of the beauty of the charge and neutral headroom as well as photons reconstructed in a Cone. 159 00:23:11.700 --> 00:23:14.700 Edgar Carrera: of R equals 0.4 around the me one. 160 00:23:15.870 --> 00:23:22.650 Edgar Carrera: As you notice this is already done here right because this isolation variable takes already. 161 00:23:24.570 --> 00:23:34.020 Edgar Carrera: takes care of the of the charge hydrants then neutral hydrants and the and the, the photons right so so that's not news. 162 00:23:35.910 --> 00:23:55.350 Edgar Carrera: And they say the some of the beauty of the charge had runs associated to vertices other than the primary vertex is a use the correct for pileup contamination in the total flux of neutrals found in the neon isolation Cone. 163 00:23:57.240 --> 00:24:08.490 Edgar Carrera: that's what it's telling us and it tells us that a factor of beta 0.5 is used to scale this contribution, so the expression that. 164 00:24:10.470 --> 00:24:14.610 Edgar Carrera: manifests this statement here is this one that you can find. 165 00:24:15.780 --> 00:24:30.000 Edgar Carrera: Here, so this is the isolate the relative isolation very so you some these quantities in in a cone of 04 and then you divided by the beauty of the of the party. 166 00:24:31.050 --> 00:24:36.900 Edgar Carrera: And we don't have this variable, and so we need to implement, so your task is to. 167 00:24:38.430 --> 00:24:39.030 Edgar Carrera: is to. 168 00:24:40.200 --> 00:24:49.050 Edgar Carrera: To to check this to check how to do this, and for that I have put some hints here, by the way, we're calling this variable. 169 00:24:50.640 --> 00:24:58.530 Edgar Carrera: PF realize oh zero for the core i'm not exactly sure why you know why but anyway. 170 00:24:59.790 --> 00:25:02.250 Edgar Carrera: that's how we are calling this and. 171 00:25:03.780 --> 00:25:18.540 Edgar Carrera: And so, there are some hints here at first, we already have most of this variable implemented implemented under very similar ice variables, as I showed you here right, so this is very, very similar but it's eventually missing some. 172 00:25:20.430 --> 00:25:24.330 Edgar Carrera: Some term and and some function inside. 173 00:25:26.610 --> 00:25:27.720 Edgar Carrera: You can see that. 174 00:25:28.860 --> 00:25:35.400 Edgar Carrera: From this object these ISO 04 object which essentially. 175 00:25:38.670 --> 00:25:45.300 Edgar Carrera: So this is a little bit trickier because it has this aura c++ function sure so out of auto. 176 00:25:48.090 --> 00:26:06.780 Edgar Carrera: Type deaths are very nice because they work fast, but when you read the code, it takes more time to figure out what type, they are right, so you have to find a way to figure out what kind of object these uptick this but it's easy if you consider which. 177 00:26:08.070 --> 00:26:22.050 Edgar Carrera: method you are reading from and so these ISIS 04 object is evidently given this information about the some of the charge hydrants. 178 00:26:22.620 --> 00:26:36.510 Edgar Carrera: Okay, and everything else, so my guess because I haven't tried this I just implemented the solution that new dish made and I haven't looked really but my My suspicion is that. 179 00:26:37.860 --> 00:26:47.610 Edgar Carrera: There is a similar method that this object is given, which is related to the pilot contamination that they talked about here okay. 180 00:26:48.330 --> 00:27:03.180 Edgar Carrera: And we find it, and that would be this one, now that they call by lab charge by lab or something we find this, then we can construct this expression and replace it and make a new variable and. 181 00:27:04.590 --> 00:27:22.740 Edgar Carrera: And added here as a new variable here, of course, you need to save this variable make room for this right, so the clarity here and then make room in the root file clear it and then get the information and you're done. 182 00:27:24.630 --> 00:27:27.420 Edgar Carrera: So is this is this clear. 183 00:27:29.610 --> 00:27:30.270 Edgar Carrera: This is. 184 00:27:31.470 --> 00:27:35.550 Edgar Carrera: This is like one liner here is just one line that you have to implement. 185 00:27:37.350 --> 00:27:42.090 Edgar Carrera: very similar to this isolation variables that we just were seeing here. 186 00:27:48.240 --> 00:27:50.280 Edgar Carrera: So i'll give you. 187 00:27:51.870 --> 00:27:54.210 Edgar Carrera: So what time do we have for this. 188 00:28:04.680 --> 00:28:05.040 Edgar Carrera: yeah. 189 00:28:06.270 --> 00:28:09.120 Edgar Carrera: yeah 40 minutes right then 10 minutes yeah. 190 00:28:10.320 --> 00:28:28.650 Edgar Carrera: yeah so i'll give you five minutes and and, if not you're allowed to look at the solution and see how we implemented it, so the one thing i'm gonna guide you through is try to get this information from this object that that I can do so when I see is that this meal on. 191 00:28:30.360 --> 00:28:42.690 Edgar Carrera: is getting this information, using this method Okay, and I know what these millionaires I know exactly because this is my bad my bad noon that's what we have been using all along. 192 00:28:43.020 --> 00:28:54.510 Edgar Carrera: it's my bad noon, and of course the main class that gives me this bad me on is this this class, so I have to look somehow at this class the bad candidates class. 193 00:28:54.960 --> 00:29:08.520 Edgar Carrera: And I always find everything object related under data formats that's a common thing for cms is w and so i'll just jump really quick to cms is w on get. 194 00:29:10.020 --> 00:29:12.930 Edgar Carrera: And and go to the data format. 195 00:29:15.180 --> 00:29:16.110 Edgar Carrera: Data formats. 196 00:29:18.390 --> 00:29:21.900 Edgar Carrera: Right and look for bad candidates. 197 00:29:23.970 --> 00:29:28.620 Edgar Carrera: So i'll go for bad candidates where's the bad candidates. 198 00:29:31.020 --> 00:29:43.620 Edgar Carrera: Here, and they interfaces the headers of the different classes and hear everything lives in here, you know the electrons the me on the jets everything so. 199 00:29:44.040 --> 00:29:55.080 Edgar Carrera: This is the first place, you went to look, if you want to add more information to these different objects because it's very likely that the information that you need is already food as as a method here. 200 00:29:55.770 --> 00:30:05.220 Edgar Carrera: So you come to the meal on, and you have all the information that you can extract from these New York and and look. 201 00:30:06.510 --> 00:30:30.240 Edgar Carrera: So these object is essentially taking advantage of this and getting this information from a method called PF isolation and our 0404 Cone and that's what i'm going to search for but I need to look under the correct version, which is the set. 202 00:30:32.370 --> 00:30:34.770 Edgar Carrera: I guess it's the seven six X. 203 00:30:36.900 --> 00:30:37.410 Edgar Carrera: Okay. 204 00:30:44.370 --> 00:30:45.090 Edgar Carrera: and 205 00:30:48.960 --> 00:30:52.590 Edgar Carrera: yeah but sometimes the way that it works is. 206 00:30:54.090 --> 00:30:55.350 Edgar Carrera: That these. 207 00:30:57.510 --> 00:31:06.120 Edgar Carrera: These variables are so general that they don't really belong to the moon itself right, so they have to be one level up. 208 00:31:07.080 --> 00:31:16.530 Edgar Carrera: And if you don't find it here, so you can find all these different methods, but these variable is apparently more general than just for me on. 209 00:31:17.190 --> 00:31:26.730 Edgar Carrera: And, and it should be, it should be gotten from perhaps one of these classes so which one is it. 210 00:31:27.720 --> 00:31:42.690 Edgar Carrera: pretty sure it should be or my feeling is that it should be under the general ledger right because New York has a laptop and if I try to find some general information about a laptop then it may be, is here. 211 00:31:45.870 --> 00:31:53.250 Edgar Carrera: unless someone knows exactly from cms where it is I haven't I haven't done this, I don't want to do it live but let's see. 212 00:31:58.290 --> 00:31:59.220 Edgar Carrera: let's see. 213 00:32:04.710 --> 00:32:05.520 Edgar Carrera: Here, neither. 214 00:32:07.620 --> 00:32:08.070 Edgar Carrera: Oh man amen. 215 00:32:09.660 --> 00:32:12.270 Edgar Carrera: it's not right it's not very easy to find it. 216 00:32:27.900 --> 00:32:28.140 Edgar Carrera: yeah. 217 00:32:45.870 --> 00:32:48.720 Edgar Carrera: that's what I meant about detective work. 218 00:32:50.370 --> 00:32:52.020 Edgar Carrera: We don't usually find this. 219 00:32:54.210 --> 00:32:57.060 Edgar Carrera: We usually find this much easier. 220 00:33:27.390 --> 00:33:27.600 Edgar Carrera: Oh. 221 00:33:30.420 --> 00:33:35.790 Edgar Carrera: I think I think this is the one right interface isolated BF. 222 00:33:48.240 --> 00:33:48.690 This is a. 223 00:33:50.490 --> 00:33:51.570 Edgar Carrera: particle flow. 224 00:33:57.180 --> 00:33:59.460 Edgar Carrera: Article flow can date. 225 00:34:18.780 --> 00:34:19.350 Edgar Carrera: and 226 00:34:22.110 --> 00:34:26.730 Edgar Carrera: Isolated particle flow candidate, I hope it is here. 227 00:34:34.950 --> 00:34:35.280 Edgar Carrera: Oh. 228 00:34:48.840 --> 00:34:49.290 Edgar Carrera: Mr. 229 00:34:58.440 --> 00:35:02.220 Edgar Carrera: There is a prize that dinner some it. 230 00:35:03.570 --> 00:35:04.230 Edgar Carrera: First. 231 00:35:13.470 --> 00:35:15.480 Edgar Carrera: I wish my dish was here. 232 00:35:22.650 --> 00:35:23.610 Edgar Carrera: should be there them. 233 00:35:33.990 --> 00:35:34.860 Edgar Carrera: I know what to do. 234 00:35:37.830 --> 00:35:38.910 Edgar Carrera: Right broken. 235 00:35:43.530 --> 00:35:45.480 Edgar Carrera: Sorry search for this method instead. 236 00:36:03.390 --> 00:36:04.740 Edgar Carrera: Okay, it looks like. 237 00:36:06.840 --> 00:36:08.070 Edgar Carrera: It comes from here. 238 00:36:17.130 --> 00:36:17.940 Edgar Carrera: yeah well. 239 00:36:20.460 --> 00:36:21.570 Edgar Carrera: Not very evident. 240 00:36:24.930 --> 00:36:26.070 Edgar Carrera: But it looks so. 241 00:36:27.180 --> 00:36:29.910 Edgar Carrera: yeah, this is the thing that gives you this methods. 242 00:36:31.020 --> 00:36:36.660 Edgar Carrera: So it's actually it's much more general than a particle of flow or. 243 00:36:39.840 --> 00:36:40.260 Edgar Carrera: See. 244 00:36:43.260 --> 00:36:43.560 yeah. 245 00:36:45.390 --> 00:36:55.950 Edgar Carrera: It it comes from this right, and so you have all these methods for this object and voila we we found our. 246 00:36:56.760 --> 00:37:14.430 Edgar Carrera: Our guilty subject So you see here that this is the sum of charged particles, not from the TV exactly as what the information that we had from the analysis tell us that we need to add this with this factor of 0.5. 247 00:37:15.870 --> 00:37:18.480 Edgar Carrera: To our definition so that's why we did. 248 00:37:19.770 --> 00:37:35.310 Edgar Carrera: So if you download so see it's not an easy task task, sometimes to find information, but one way or another, you can explore the code and try to navigate through it and, eventually, you can find it so. 249 00:37:36.150 --> 00:37:56.190 Edgar Carrera: So let's let's implement while we don't have time to do it live, but what we what we will do is to compare the original file to this solution that I have put somewhere here, and you will see that that's essentially the. 250 00:37:59.010 --> 00:38:09.210 Edgar Carrera: The modification that we needed to do so i'll compare these two versions of the file I put it. 251 00:38:10.500 --> 00:38:10.980 Edgar Carrera: here. 252 00:38:12.030 --> 00:38:15.120 Edgar Carrera: And it will show so. 253 00:38:16.920 --> 00:38:20.580 Edgar Carrera: So yes, so here is the. 254 00:38:24.510 --> 00:38:26.040 This is a bit difficult to. 255 00:38:27.480 --> 00:38:28.680 Edgar Carrera: I guess i'll just copy that. 256 00:38:30.900 --> 00:38:32.820 Edgar Carrera: I just download the solution. 257 00:38:34.110 --> 00:38:35.100 Edgar Carrera: and show it to you. 258 00:38:38.220 --> 00:38:38.490 Okay. 259 00:38:39.540 --> 00:38:40.200 Edgar Carrera: So. 260 00:38:43.170 --> 00:39:03.090 Edgar Carrera: They should be the updated updated version already, and here it is so the rest is the same, you know the booking of the of the variables in such is the same, but this is the show line where we extract information so once we found the guilty suspect, you know this term that gives us the. 261 00:39:04.140 --> 00:39:13.740 Edgar Carrera: The some pilot beauty which corrects for the pile up, we can add it following the expression that was given g. 262 00:39:14.730 --> 00:39:32.280 Edgar Carrera: We can add this variable to our collection of variables, and it is formed in a very, very, very similar way, of the other pileup sorry the isolation variables, but taking the Max value of this some okay. 263 00:39:33.420 --> 00:39:47.820 Edgar Carrera: that's that's the that's the implementation of this new variable and, of course, after you do, that some you have to divided by the PT of the particle itself in this case the moon and that's relative variable. 264 00:39:50.040 --> 00:40:07.050 Edgar Carrera: All right, and I think that's all for now I hope that you have gotten feeling of what it takes to get information from different kind of objects, we have treated to essentially electrons and nuance. 265 00:40:07.830 --> 00:40:22.920 Edgar Carrera: We have gotten the variables that we need for our analysis on Wednesday so we're good to go for electrons and neurons and now i'm going to hand over to to Julie, who I hope is connected, but first we need to stop the recording. 266 00:40:24.660 --> 00:40:26.070 Edgar Carrera: And how are we going to do this.