sFGD beam test analysis

Wednesday 22 Jul 2020, 15:50 → 18:00 Europe/Zurich

https://stonybrook.zoom.us/j/7598419716?pwd=QmIyT0hwWkxkVWJwQnhmbDR6NVo1QT09

16:00 → 16:20 Introduction to the software

Speaker: Ciro Riccio (Università degli Studi di Napoli Federico II e INFN sezione di Napoli (IT))

Riccio_sfgdmeetingJuly222020.pdf

16:20 → 16:40 Event Scanning and Classification

Speaker: Leonel Lin

Event Scanning Presentation.pdf

Event Scanning Presentation.pptx

16:40 → 17:00 FV and dead material study

Speaker: Perri Zilberman

7-22-20_Pres_Final.pdf

17:00 → 17:10 CERN beam test paper

17:10 → 17:20 CERN beam test analysis update

Speaker: Wilf Shorrock (Imperial College (GB))

17:20 → 17:25 Meeting Minutes

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), Anushka Agarwal (AA), Leonel Lin (LL), Rachel Pellegrino (RP), César Jesús-Valls (CJV), Martin Tzavoz (MT), Mark D’Souza (MDS), Leonel Lin (LL), Michael Reh (MR)

 

CERN test beam data analysis:

 

• GY: need to discuss the discrepancy seen between MC and Data by Clark but probably in another meeting. The paper is still under review.

 

LANL neutron test beam:

 

• Ciro Riccio - Status of the software 
  • MT: This framework is very nice! Is it completely new w.r.t. sfgd_framework? CR: We decided to move to gitlab for different reasons: non-T2K people cannot have access to sfgd_framework. We are taking a lots from the sfgd_framework and we want to make this software in such a way that we can use it for next data analysis.
  • MT: Regarding the MC simulation, which environment you use. GY: I run the simulation at FNAL. 
  • CM: Do you plan to make a presentation about MC next week? GY: I will give an update next week about the MC 

 

• Leonel Lin - Event Scanning and classification
  • AT: Why you are looking for strait track?  
  • LL: We are looking at this events because we want to validate the clustering algorithm. 
  • AT: Are you doing this by eye? LL: Yes.
  • CJV: You can generate your events and cross-check the algorithm. 
  • CMG: Thank you for this which is a lot of work! 
  • AT: You can do a linear fit to shrink the sample? LL: This can be done.
  • CM: Duplicate events in CERN TB data? CJV: Duplicate events problem has been never solved.  
  • DD: This should be a coding issue regarding the gtrig, which will happen much more often in LANL data than CERN. GY: Can be solved with a cut on spill time.
  • DL: If t0 of the duplicate events is not the same this can mess up the relative timing. GY: If the number of such events it is not big we can throw these event away. CM: I would be careful in throwing event away, since we can create some systematic bias. 

 

• Perri Zilberman - FV and dead material study 
  • GY: probably the fiducial volume will be 2x2 cube
  • CM: Are you using neutron for this study? PZ: Yes
  • CM: Instead of neutrons it would be better to simulated proton and charged pions because G4 does not simulate neutron very well. GY: We are using neutron because we want to make a FV such that we want to reduce the impact of the secondary interactions (SI). CM: I see, then this is the right way to do.
  • CM: In general we need to understand the impact of SI from data.