Difference between revisions of "SoLID Study"
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=== [[Solid GEM Digitization | Digitization ]] (Weizhi,Ole,Rich,Seamus) === | === [[Solid GEM Digitization | Digitization ]] (Weizhi,Ole,Rich,Seamus) === | ||
Revision as of 11:55, 16 May 2017
Contents
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
2017/01-2017/02
Sanghwa, MRPC simulation and digitization
Zhiwen, SIDIS He3 detection eff
Kalyan, SIDIS NH3 detection eff
Kalyan?, SIDIS NH3 trigger rate
Seamus/Yuxiang, electron generator merging resonance and DIS part
Yuxiang, hadron generator (SIDIS He3 window)
Ye Tian, EC for SIDIS and JPsi
Alex, DAQ deatime
??? justification for detector optimization
2016/09-2016/12
| 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,PVDIS | ongoing | detailed study for 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
The file size is large in order of 50GB, you can transfer them by using "scp jlabname@ftp.jlab.org:file" or other ways here https://cc.jlab.org/filetransfers
- sharing location
location on disk /work/halla/solid/sim/solid_gemc location on tape /mss/halla/solid/sim/solid_gemc/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 /home/zwzhao/solid/solid_svn/study/background/log_PVDIS_LD2 /home/zwzhao/solid/solid_svn/study/background/log_SIDIS_He3 /home/zwzhao/solid/solid_svn/study/background/log_SIDIS_NH3 /home/zwzhao/solid/solid_svn/study/background/log_JPsi_LH2
- file name
"*BeamOnTarget_1e9_skim.root", created by shooting 1e9 electron on target, full SoLID simulation, only events has any entry in any detector is kept, physics list used is "QGSP_BERT_HP+STD+Optical", including hadron,EM and optical process "*BeamOnTarget_1e9_skim.root", created by shooting 1e9 electron on target directly, only events has any entry in any detector is kept, physics list used is "STD+Optical",meaning no hardon, only EM and optical process "*dirty_weighted_eDIS_filenum100_1e6.root, *dirty_normalized_*_pi*HallD_filenum500_5e6.root, *dirty_normalized_*_allnoeHallD_filenum500_5e6.root" dirty means full SoLID simulation with physics list "QGSP_BERT_HP+STD+Optical" weighted means the generator events distribute evenly in certain kinematic space,then have weight linked to crossection and rate normalized means the generator events distribute according to crossection by probability and weight is a constant for each event eDIS means electron from target by the DIS electron generator mode in "eicRate" code pion*HallD means pion from target by the modified hallD generator allnoeHallD means all particles from the modified hallD generator which has no electron 5e6 are number of event filenum500 means sum of 500 small files of 1e4=5e6/500 events each
- note about normalization factor
for BeamOnTarget skim file, (current in A)/1.6e-19/(number of event) = rate in Hz, for PVDIS_current=50uA,SIDIS_He3=15uA,SIDIS_NH3=100nA,JPsi=3uA, number of event is in file name, which is not number of tree entries in skim root file for other file, (var8->at(0) in tree header)/filenum = rate in Hz, filenum is included in file name, this is because each small file is normalized separately see example here https://jlabsvn.jlab.org/svnroot/solid/study/background/background.C and https://jlabsvn.jlab.org/svnroot/solid/study/trigger/Get_PVDIS_LD2_trigger_rate.C
list of study
Generator
new electron generator combining both DIS and resonance region with existing code (?)
new hadron generator (Rakitha)
Trigger
Digitization (Weizhi,Ole,Rich,Seamus)
Tracking (Weizhi and Ole)
neutron background (Lorenzo)
with low neutron physics on, comparing to Fluka result
