Update on SoLID Jian-ping Chen, Jefferson Lab SoLID Collaboration Meeting November 8-9, 2013

Main Progress:  pCDR, completed 1)All sub-systems have ‘final” conceptual design 2)Cost estimation, iterated with Hall A/Physics Division 3)Main contents, iterations in progress  Background: (Zhiwen Zhao, Rich Holmes, Rakitha Beminiwattha) 1)Difficulties with realistic background situation, especially for PVDIS 2)Optimize design of the baffles to reduce background 3)Identify source/profile of background 4)Considerations/impacts on triggers, offline PID and tracking  EM calorimeter: (Xiaochao) 1)Simulation and study impact of background, pile-up 2)Variable level of cuts (radial and azimuthal angle) for trigger 3)Pre-shower design, MAPMTs 4)Scintillator Pad Detector (SPD) to reduce photo background. 5)Impact on trigger 6)Full simulation for SIDIS 7)Set up pre-R&D test stand (with DAQ system)  Light Cherenkov: (Michael Paolone) 1)Simulation with background 2)Combined with EC for trigger and for offline analysis. SoLID Status Update

 Heavy Gas Cherenkov: (Mehdi Meziane) 1)Angular coverage 2)Space availability  QAD/Trigger System: (Alexandre Camsonne) 1) Updated design with new inputs from EC/LC (Alexandre’s talk) 2) Simulation/calculations 3) Test stand  GEMs 1)GEMs- China progress (Jianbei Liu) monthly meetings/fund application preparation 2) GEMs- US (Kondo Gnanvo) R&D/ construction for SBB / beam test at Fermi Lab Readout system study (SR vs INFN systems)  Other progress/issues: 1)Magnet:, preparation for extracting/moving CLEO magnet to JLab 2)Tracking (Ole Hansen) 3)Support structure 4)New available equipment (DIRC) 5)New collaborators 6)New proposals SoLID Status Update (II)

 pCDR “complete”  Director’s review: in two months?  Discussion with DOE: in a few months?  Submit MIE/MRI: 2014?  CD process: ?  Simulation/improvement: continuing  Pre-R&D: starting now  CDR/TDR Milestone, Schedule