sFGD beam test analysis

Europe/Zurich
    • 16:00 16:20
      LANL analysis status report 20m
      Speaker: Guang Yang (Stony Brook University)
    • 16:20 16:40
      Wrap-around update 20m
      Speaker: Shih-Kai Lin (Louisiana State University)
    • 16:40 17:00
      Charge cut study 20m
      Speaker: Wilf Shorrock (Imperial College (GB))
    • 17:00 17:20
      Comparison of 0 and 180 configurations 20m
      Speaker: Ms Andriaseta Sitraka (South Dakota School of Mines and Technology)
    • 17:20 17:35
      CERN beam test analysis update 15m
      Speaker: Wilf Shorrock (Imperial College (GB))
    • 17:35 17:45
      CERN beam test paper 10m
    • 17:45 17:50
      Meeting Minutes 5m
      Speaker: Ciro Riccio (Università degli Studi di Napoli Federico II e INFN sezione di Napoli (IT))
      Attendees: Guang Yang (GY), Ciro Riccio (CR), Shih-Kai Lin (SKL), Abraham Teklu (AT), Eric Chong (EC), Dana Douqa (DD), Perri Zilberman (PZ), David Last (DL), Clark McGrew (CMG), Andriaseta Sitraka (AS), César Jesús-Valls (CJV), Martin Tzavoz (MT), Chang Kee Jung (CKJ), Wilf Shorrock (WS), Vittorio Paolone (VP), David Martinez Caicedo (DMC), Etam Noah (EN), Cristopher Mauger (CM)
       
      LANL neutron test beam:
       
        • MCG: By multi-track do you mean multi-track from the same vertex? GY: Yes.
        • CKJ: Detector is not uniform along z because we do not have the same MPPC everywhere. Also neutron elastic scattering would be a problem. GY: Yes, we should rely on the MC for that. 
        • CKJ: We should have as primary goal the understanding of the response of the detector. 
        • GY: Not sure about the air gap value. CKJ: We should know the dimension of the detector. These numbers should be in the CERN TB paper? EN: No, actually. GY: I will use as default geometry the one without air gap
        • CMG: Can we have a GitHub group as we did in CAPTAIN? GY: Yes, this is the idea. CR: We have already a GitLab project where we have a package where Guang will push all his code.
        • CM: slide 5: Is there some angle dependence here? CKJ: FV should be very very tight and we must understand how the angular dependence has an impact. GY: Full talk by Perri next week on this topic. 
        • CM: slide 6: the plots are MC or data? GY: Both are MC. 
        • CMG: slide 6: You are probably introducing some bias using the +-1 tick cut. GY: I am giving this talk because we need feedback on these topics. The voxelization is something we should look over again to check the results with a better MC. 
        • CM: The pion/proton samples? Will you distribute isotropically such events? Yes, starting from the geometric center of the detector. 
        • CKJ: Do you want to specify the angle? GY: We need the angle w.r.t. beam direction. 
        • DL: 180 degree we observe hot channels induced by beam.
        • CKJ: How many events have single track? GY: I have a MC estimation. For low energy the one track is dominant, while for higher we observe more multi-track events. 
       
      • Shih-Kai Lin - Wrap-around update
        • DL: Do you confirm that the peaks are micropulse times apart aka 1.778877us or whatever (715/716) ticks apart . SKL: Yes, I confirm it.
        • GY: David, you told me that we are missing 4 hits and not just the first, right? DL: It was a rudimentary check. We should rely on this study since it is more accurate. 
        • SKL: Are people suggesting to look macropulse per macropulse? GY: Yes. 
        • CKJ: slide 10: we can ask beam scientist at LANL to confirm that.
        • CKJ: Why we have duplication? GY: if we lift the dt cut, within every trig time (10 microsecond), all hit will be associated with possible t0 trigger, which means one hit will be repeated for 5-6 times.
        • SKL: Is there a better way to look at multiple counting? DL: We can discuss offline.
       
      • Wilf Shorrock - Charge cut study
        • GY: I will give you an updated version of the MC but this should not change the results you are showing here.

       

      • Comparison of 0 and 180 configurations - Andriaseta Sitraka
        • Postponed to the next meeting