CLAS12 User’s Activities

CLAS12 Steering CommitteeAppointed by CLAS Users Coording Committee (Dave Tedeschi, Chair)

• Function: To assist the CCC and Jlab to organize and facilitate the role of the CLAS users in the 12 GeV upgrade.

• Meet periodically to discuss issues which may arise.

• Organize meetings and workshops focused on the CLAS12 equipment andphysics (present workshop)

• etc.

CLAS12 User’s Group Steering Committee

Jlab • Dave Kashy• Dennis Weygand• Latifa Elouadrhiri

External Users• Michel Garcon -Saclay• Ralf Gothe -South Carolina• Guenther Rosner-Glasgow

• Paul Stoler-RPI (Chair)• Dave Tedeschi-South Carolina

Hall B Upgrade Project Organization

MOU

• Formalize understanding and recognition between Lab management, users and their institutions

1. Arizona State Univ. (US) Beamline, Tagging System M

2. Argonne National Laboratory (US) Cerenkov Counter M3. California State University (US) Cerenkov Counters M4. Catholic University of America (US) Software ?5. College of William & Mary (US) Calorimetry, Magnet Mapping MM6. Edinburgh University (UK) Software 7. Fairfield University (US) Polarized Target ?8. Florida International University, Miami (US) Beamline/Moller polarimeter M9. Glasgow University (UK) Online, Data Acquisition 10. Grenoble University (France) Central Detector11. Hampton University (US) Central Tracking ?12. Idaho State University (US) Drift chambers M 13. INFN –University Bari (Italy) tbd14. INFN –University Catania (Italy) tbd15. INFN – Fermi Center (Italy) tbd16. INFN – Frascati (Italy) Central Detector17. INFN –University Ferrara (Italy) tbd18. INFN – University Genoa (Italy) Cental Detector19. INFN – ISS/Rome 1 (Italy) tbd20. ITEPhysics (Russia) Magnets, Simulations21. James Madison University (US) Calorimetry M22. Kyungpook National University (Republic of Korea) CD TOF M23. Los Alamos National Laboratory (US) Silicon Tracker ?24. Moscow State University, Skobeltsin Institute (Russia) Software, SVT M 25. Moscow State University (High Energy Physics) (Russia) Silicon Tracker26. Norfolk State University (US) Preshower Calorimeter M27. Ohio University (US) Preshower Calorimeter M28. Orsay (Univ. Paris) (France) Central Detector, Neutron Counter29. Old Dominion University (US) Drift Chambers M30. Renselear Polytechnic Institute (US) Cerenkov Counters M31. Rice University Houston (US) CD TOF ?32. CEA Saclay (France) Central Tracking 33. Temple Univ., Philadelphia (US) Cerenkov Counters ?34. Thomas Jefferson National Accelerator Facility (US) Project coordination & oversight35. University of Connecticut (US) Cerenkov Counters M36. University of New Hampshire (US) Central Tracker, Offline Software M37. University of Richmond (US) Offline Software M38. University of South Carolina (US) Forward TOF M39. University of Virginia (US) Beamline/Polarized Targets M40. Yerevan Physics Institute (Armenia) Calorimetry M41. Virginia Polytechnic Institute (US) ? M

CLAS12 Institutions and Areas of Responsibilities

Physics Programs

• Deep Exclusive reactions. GPDs, factorization.• DVCS high W, polarization• Semi inclusive reactions. SIDIS. Transversity.• High Q2 excited baryon form factors.• Quasi-real photoproduction.• Color transparency, hadronization.• Nucleons in nuclei.

CLAS12 Approved ExperimentsProposal Contact

PersonPhysics Energy

(GeV)PAC days

Parallel Running

Run Group

Comment

PR-09-103 Gothe, Mokeev

N* at high Q2 11 60

80

2020

120E12-06-119a Sabatie DVCS pol. beam 11 80

E12-06-112 Avakian ep→eπ+/-/0 X 11 60

E12-06-108 Stoler DVMP in π0,η prodL/T separation

11 80

8.86.6

2020

E12-06-119b Sabatie DVCS pol. target 11 120 120

505

175

Assume polarized

experiments run 50% of

time w/ reversed field

E12-06- 109 Kuhn Long. Spin Str. 11 82

E12-07-107 Avakian TMD SSA 11 103

PR-09-007(b) Hafidi Partonic SIDIS 11 103

PR-09-009 Avakian Spin-Orbit Corr. 11 103

E12-06-106 Hafidi Color Trans. ρ0 11 40 40 40

E12-06-117 Brooks Quark Hadronizat. 11 60 60 60

E12-06-113 Bültman Neutron Str. Fn. 11 40 40 40 cond. appr.

E12-07-104 Gilfoyle Neutron mag. FF 11 56 56

2682

007/008 need 26d reversed

fieldPR-09-007(a) Hafidi Partonic SIDIS 11 56

PR-09-008 Contalbrigo Boer-Mulders w/ Kaons

11 56

Total 1139 517

The CLAS Collaborationis a Mosaic

• Most CLAS collaboration members are citizens of nations other than the US, primarily European.

• This is our primary strength.

So, please join us and feel welcome!

It can be a lot of fun!

PAC34 Approved Proposals

Proposal Title Spokespersons PAC days

PAC action

PR-09-003 Nucleon resonance studies with CLAS12

Burkert, Cole, Gothe, Joo, Mokeev,, Stoler

60

PR-09-007 Studies of Partonic Distributions using semi-inclusive production of Kaons

Avakian, Benmokhtar, El Alaoui, Hafidi, Mirazita

159

PR-09-008 Studies of Boer-Mulders Asymmetry in Kaon Electroproduction w/ hydrogen and deuterium targets

Avakian, Contalbrigo, Joo, Meziani, Seitz

56

PR-09-009 Studies of Spin-Orbit Correlations in Kaon Electroproduction in DIS with polarized hydrogen and deuterium targets

Avakian, Cisbani, Griffioen, Hafidi, Rossi

103

PAC34 – Hall B Letters of Intent

Proposal Title Spokespersons PAC days PAC comments

LOI-09-001 DVCS on the Neutron with CLAS12

S. Niccolai, R. De Vita, M. Mirazita, A. El Alaoui

60 YES

LOI-09-004 Transverse Spin Effects in Kaon SIDIS with transversely polarized Target (HD)

H. Avakian 80 YES

LOI-09-005 Semi-inclusive pion production on Deuteron and Proton w/ CLAS12

N. Kalantarians 56 YES

LOI-09-005 Production of Cascades and Omega minus baryons at CLAS12 and GlueX (This LOI is either for Hall B or Hall D)

Nefkens, Starostin - yes (want to see more “meat” next

time)

Avakian, Contalbrigo, Rossi, vv

Detector in the HallCLAS12 & Infrastructure in Hall B

CLAS12 – Detector Package

HTCC Supported on Cart on Space Frame Subway

Central DetectorsCTOF, SVTSupported from Solenoid

Forward DetectorsLTCC, FTOF, PCAL, ECAL all Supported by Forward Carriage

Drift Chambers Supported

Central Detector

Forward Detector

CLAS12 - Detector