1. General Update Jian-ping Chen, JLab SoLID Collaboration Meeting
May 6-7, 2016

2. Overview Progress Since Last Meeting (Jan.)
SoLID Time-line discussion with JLab management
February Budget Briefing at DOE, time line presented to DOE
Pre-R&D discussion with DOE (Paul)
Stony Brook Workshop
Focus on physics: transversity/tensor charge; TMDs (OAM, 3-d Imaging)
Trento Workshop
Broad discussions, issues, new developments
Address Recommendations: Science
SIDIS: workshops, projections/impacts, systematics, simulations/tracking
PVDIS: background simulations, trigger;
New initiatives: PVDIS-EMC, PVDIS-Spin; workshops
J/y/TCS: Systematics, performance, bin migration, …; workshops
GPDs: New initiatives: DDVCS, DVMP on Pol He3, ...; workshops
Progress in subsystems
Magnet: JLab plan
Detectors: ECal, GEMs, TOF, …
DAQ/Electronics
Software frame/Tracking
Simulations: background, trigger

3. Timeline and pre-R&D plan
End 2016: Address recommendations related to science review
(August complete the studies of relevant issues, Oct. mail review?)
Spring 2017: Update pCDR -> Draft MIE
Spring-Summer 2017: Science Review
Feb 2018: Budget briefing to have SoLID in
2017/2018: CD0
FY2020: CD3, start full project
Pre-R&D/R&D plan:
1st year prepare for science review: simulations, magnet, DAQ
2nd -3rd year prepare for MIE: detectors, simulations
Effort continues/increases after CD0 (PED: Project Engineering and Design)
pre-R&D plan submitted to DOE, iterations on-going, details requested

5. Recommendations Related to Science
SIDIS
Make strong science case: workshops (Stony Brook, ECT, INT)
Comparison with CLAS12/SBS
Study systematics
Tracking
Kaon identification (TOF)
PVDIS
Background study
Q2/performance/systematics
J/y
Bin Migration
Background
Developing GPD program
DDVCS
Others (DVMP, TCS with polarized targets)

6. SoLID-TMD Related Workshops
Stony Brook Workshop (
Physics on Transversity/Tensor Charge
help Beyond SM Test (EDM)
Physics with TMDs, Orbital Angular Momentum
Physics with TMDs, 3-d Imaging
Now, What will be before SoLID (CLAS12, Hall A/C, COMPASS,…)
SoLID Impact, Future (EIC)
ECT Trento Workshop (
COMPASS TMD results
Polarized D-Y from COMPASS, Fermi Lab, RHIC-W program
New study: W+Y, issue Y term not under control at low PT
B-Space: Bessel weighting
Transversity from SIDIS and dihadron, tension with Soffer’s bound
LQCD for TMDs
Direct access OAM/GTMD: off-forward SIDIS?

7. Progress in Sub-Systems (ECal)

8. Time-Of-Flight Detectors
Goal(s):
- Initial plan is to have MRPC <100 ps for pion identification up to 2.5 GeV/c
- Above 2.5 GeV/c Heavy Gas Cherenkov for pion identification
- Kaon identification more demanding requirements:
better separation and higher in momentum
requires <30 ps resolution with the SoLID SIDIS environment
- Tsinghua U: upgrade/improved hardware could make MRPC intrinsic to <20 ps
need readout system upgrade
Expanding collaboration effort
- Joint effort with EIC R&D project, Micky Chiu joined SoLID
EIC R&D achieved <20 ps on bench test, lab test now
options for readout system
- Option with (LA)PPT detector R&D, Junqi Xie joined SoLID
See Junqi’s talk for details

9. New Proposals/LOIs GPD program: PVDIS program
- DDVCS on proton: Alexandre Camsonne et al.,
LOI last PAC with two stages, 1st stage run-group proposal (this time)
2nd stage dedicated run (later)
- DVMP with Polarized He3, Zhihong Ye et al., (this time)
- DVCS with polarized He3, Zhihong Ye et al., (later?)
- TCS withy polarized proton, Dustin Keller et al., (later?)
PVDIS program
- PVDIS-EMC: Seamus Riordan, et al., resubmission
- PVDIS-Spin: Yuxiang Zhao, et al., (this time?)
Half day session on Sat afternoon to discuss these new proposals.
Will have a formal review session before PAC for the run-group proposals.
(other proposals need SoLID collaboration endorsements should also present).