SoLID Study

Introduction

This is page is collection of study using SoLID software

the code are at https://jlabsvn.jlab.org/svnroot/solid/study/

timeline and milestone (as 2016/02)

short term (before 2016/08, response to director review)

what	when	who	status
Acceptances for 3 experiments	May	Zhiwen and Kalyan
PVDIS Q2	May?	Bob Michaels
SIDIS impact	Aug?	Tianbo,Zhihong,Kalyan
J/psi bin migration and signal/background	May?	Temple
Magnet optimization	Aug?	ANL?
hadron generators	April	Rakitha
electron generator (combine DIS and resonance regions)	May?	???
generating overall simulations files	as often as needed	Zhiwen
EC old response function wrapper	March	Yuxiang	Done! on 2/19
EC new response (PVDIS)	March	Rakitha
EC new response (SIDIS)	April	Rakitha
LGC trigger response	March	Michael
SPD and MRPC trigger response	April	Yuxiang
PVDIS e trigger	April	Michael,Yuxiang
SIDIS e trigger	May	Michael,Yuxiang
SIDIS hadron trigger	May	Michael,Yuxiang
DAQ deadtime	Aug?	Alex,Bob,Yuxiang?
GEM response parameterization	May?	UVa group
GEM Digitization and Occupancy	May	Weizhi
tracking	Aug	Weizhi
Baffles optimization	May	Rich

near term (before 2017/02, science review?)

Radiation/activation Lorenzo

Kaon identification TOF group

simulation and software framework Ole

full simulation and file sharing (Zhiwen)

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

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

file sharing location

(/home/zwzhao/work_halla is a link to /w/work6501/zwzhao)
/home/zwzhao/work_halla/solid/solid_svn/solid/study/background/PVDIS_LD2_JLAB_VERSION_1.2
/home/zwzhao/work_halla/solid/solid_svn/solid/study/background/SIDIS_He3_JLAB_VERSION_1.2
/home/zwzhao/work_halla/solid/solid_svn/solid/study/background/JPsi_LH2_JLAB_VERSION_1.2
Currently finished some files without LGC as 2016/01/21

list of study

Generator

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

new hadron generator (Rakitha)

GEM related

GEM digitization validation(?)

Extract information from

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

This is to provide input for digitization, including energy threshold (Solid_GEM_Digitization#GEM_response), cluster width, avalanche charge, efficiency for both charge particle, and efficiency for low energy photons which dominates the background in SoLID, and more.

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"

Maybe the way to extract some information is do standalone GEM simulations matching test?

neutron background (Lorenzo)

with low neutron physics on, comparing to Fluka result