INTT Weekly meeting

Thursday 1 May 2025, 20:00 → 23:00 US/Eastern

Meeting URL 

https://zoom.us/j/92149923535

 

INTT 2025/5/2 9:00am

Study of INTT Overflow flags : Shan-Yu Chen

  Overflow flag is studied using the 1M Au+Au events in 2024.
    Results  shows:
    + Overflow is localized at certain ladders.
  +  The amounts of the overflow is strongly correlated with the hot channels.
    -> overflow is significantly reduced by using the hot map.
      ->   some overflow still remain.

   + checked the correlation w/ adjacent(pre/next) events and BCO interval 
      ->  no correlation w/ the previous/next event
    ->   no correlation w/ BCO interval

   + the fraction of overflow hits = 0.007 % including FULLCHIP and FULLROC
      -> no visible effect on the data analysis

  Questions:
    + online channel mask may help reducing the overflow flag. good to check 

   Proposal from the discussion
     -  The hot channel/chip should be masked by online.
     -  Shan-Yu and ChengWei provides the channel mask in the online format.

GL1-INTT matching at packet level : Genki NUKAZUKA
  
 + BCO matching between GL1-INTT was studied with 2025 cosmic data (2months).
        the matching fraction was different with the INTT servers. INTT0 shows lowest fraction.
 + matching fraction was changed by time Apr/12 and Apr/26 
      - the hot channel mask was changed on Apr/26
 
  + increasing BCO range of the searching window to sync between GL1 and BCO can help

  + INTT tracking with EMC require GL1 BCO. it is hard to do this because we study the BCO problem

  + Next step to understand the situation
    -> checking the raw level data can help?

 

INTT Simulation Optimization : Milan Stojanovic (Purdue University)
  + Welcome back to INTT!!
 + INTT response in simulation was different with data found in dN/deta and other analyses. 
   -> diffusion tuning doesn't fix the problem

  + discussed about the analysis plan

 

BeamTest analysis update for Publication : Cheng-Wei Shih
  +  beam test analysis was updated.
    -> systematic error on the ADC distribution is evaluated by using 6th ADC bin matching 
    -> detection efficiency was systematically checked with several conditions
       -  all the values are ~99.5%
       -  position dependence was also studied.

 All the plots were to be shown in the paper
  - need to review carefully 
  - Unfortunately we didn't have enough time to review the analyses and plots in the meeting.
     Plan to discuss next week.

 

Call for the paper preparation for the 3rd test beam experiment : Genki
  discussion was postponed

20:00 → 20:20 Study of INTT Overflow flags

Speaker: Shan-Yu Chen (National Central University)

INTT_20250502.pdf

20:20 → 20:40 BeamTest analysis update for Publication

Would like to also request pre-approval for plots presented in the slide today

Speaker: Cheng-Wei Shih (National Central University)

INTT_2025_05_02_BeamTest2.pdf

20:40 → 21:00 GL1-INTT matching at packet level

Speaker: Dr Genki NUKAZUKA (RIKEN/RIKEN BNL Research Center)

20250501_GL1_INTT_packet_level_matching.pdf

21:00 → 21:20 Call for the paper preparation for the 3rd test beam experiment

It's better to discuss this next week because many people (probably) cannot attend this INTT meeting.

Speaker: Dr Genki NUKAZUKA (RIKEN/RIKEN BNL Research Center)

21:20 → 21:40 INTT Simulation Optimization

Speaker: Milan Stojanovic (Purdue University)

INTT_Simulation_Optimization_20250501.pdf

21:40 → 22:00 Draft slide for INTT meeting 2025/05/09 (85% completed)

Draft slide for INTT meeting 2025/05/09, the beam test analysis for publication

Speaker: Cheng-Wei Shih (National Central University)

INTT_2025_05_09_BeamTest3.pdf