Difference between revisions of "SoLID Study"

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(timeline and milestone: Rich on (PVDIS) acceptance and Q2; Q2 blank-filling)
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Revision as of 09:06, 6 September 2016

Introduction

A collection of studies often involve more than one subsystems

most of codes are at https://jlabsvn.jlab.org/svnroot/solid/study/

timeline and milestone

what who goal by Sep,response to director review status goal by Dec,prepare for science review status
acceptances and efficiency Zhiwen, Kalyan, Rich Holmes simple geometry acceptance for all, detailed acceptances and efficiency study for SIDIS He3 ongoing detailed study for PVDIS,JPsi,SIDIS NH3
PVDIS Q2 Bob Michaels, Paul Souder, Rich Holmes general method and sensitivities ongoing method details
SIDIS impact Tianbo,Zhihong,Kalyan transversity,tensor charge for SoLID,SBS,CLAS12 ongoing other TMD
J/psi bin migration and signal/background Michael Paolone and Zhiwen Zhao 4 fold and 3 fold ongoing  ?
Magnet optimization ANL  ?  ?
EC old trigger function wrapper Yuxiang as is done in March trigger
EC new trigger Rakitha PVDIS,SIDIS_He3 PVDIS done PVDIS ECAL Trigger PVDIS Background SummaryPVDIS trigger fuction PVDIS trigger_efficiency_numbers, SIDIS_He3 ongoing JPsi,SIDIS_NH3
LGC trigger response Michael PVDIS,SIDIS,JPis done in March, can be adjusted (PVDIS threshold: 2P.E, 2pmts for one sector)
SPD and MRPC trigger Sanghwa SPD trggier ongoing MRPC trigger
PVDIS e trigger Yuxiang as is done in July trigger_rate
SIDIS e trigger Yuxiang as is ongoing
SIDIS hadron trigger Yuxiang as is ongoing
JPsi e trigger Yuxiang as is
DAQ deadtime Alex,Bob as is ongoing
GEM response parameterization Nilanga with source onging with beam
GEM Digitization and Occupancy Weizhi SIDIS_He3 done with initial result, need UVa input to finalize PVDIS,JPis,SIDIS_NH3
tracking Weizhi tracking fitting for all, track finding for SIDIS_He3 done with tracking fitting for all, ongoing with track finding for SIDIS_He3 track finding for others
Baffles optimization Rich as is done
Radiation and activation Lorenzo as is done
Kaon identification TOF group initial study done more study
unified simulation Zhiwen Zhao and all as is done fine tuning, testing with software framework
software framework Ole identify and make the choice, short doc done with choice, working on doc testing

full simulation and file sharing

We will run full simulation with all subsystems and generate various files at a shared central location

They can used for studies like acceptance,trigger, background, GEM etc and ensure consistent results

simulation file sharing location by Zhiwen

location /home/zwzhao/background (a link to /w/work6501/zwzhao/work_halla/solid/solid_svn/solid/study/background)
dir
  PVDIS_LD2_JLAB_VERSION_1.2
  PVDIS_LD2_JLAB_VERSION_1.3
  SIDIS_He3_JLAB_VERSION_1.2
  SIDIS_NH3_JLAB_VERSION_1.3
  JPsi_LH2_JLAB_VERSION_1.2   
subdir
  pass1
  pass2
  pass3
  pass4
  ...
refer details in
  /home/zwzhao/background/log_PVDIS_LD2
  /home/zwzhao/background/log_SIDIS_He3
  /home/zwzhao/background/log_SIDIS_NH3
  /home/zwzhao/background/log_JPsi_LH2

hadron background file sharing location by Rakitha

/work/halla/solid/rakithab/halld/lund_format

list of study

Generator

new electron generator combining both DIS and resonance region with existing code (?)

new hadron generator (Rakitha)

Trigger

GEM related

GEM digitization validation

SoLID GEM digitization is based on the SBS GEM digitization

According to Evaristo, the SBS GEM digitization is "Unfortunately not validated; we used the old COMPASS data to validate the digitization"

The way to do GEM digitization validation maybe

1. Extract information directly from hardware test
2. do standalone GEM simulations to matching hardware test condition

hardware test can be used

1. some cosmic or beam test with charge particles
2. the latest UVa xray test result (p13 of here) 

charge particle response can provide all input for digitization Solid_GEM_Digitization#GEM_response

low energy photon response can provide additional info about low energy photons convert into ionization to make a GEM hit to anchor simulation, this is important because they dominate the background

Digitization (Weizhi,Ole,Rich,Seamus)

Occupancy (Weizhi,Seamus,Alex)

Tracking (Weizhi and Ole)

neutron background (Lorenzo)

with low neutron physics on, comparing to Fluka result

acceptance (Zhiwen and Kalyan)

previous Study

Compare to geant3 result

rate and background

pi e Ratio

Figure of Merit for baffle designs

SIDIS/PVDIS Cherenkov