CLAS12 User’s Activities

CLAS12 Steering Committee Appointed 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 and physics (present workshop) etc.

CLAS12 User’s Group Steering Committee Jlab Dave Kashy Dennis Weygand Latifa Elouadrhir i 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 SystemM 2.Argonne National Laboratory (US) Cerenkov CounterM 3.California State University (US)Cerenkov CountersM 4.Catholic University of America (US)Software? 5.College of William & Mary (US)Calorimetry, Magnet MappingMM 6.Edinburgh University (UK)Software 7.Fairfield University (US)Polarized Target? 8.Florida International University, Miami (US)Beamline/Moller polarimeterM 9.Glasgow University (UK) Online, Data Acquisition 10.Grenoble University (France) Central Detector 11.Hampton University (US)Central Tracking? 12.Idaho State University (US)Drift chambersM 13.INFN –University Bari (Italy)tbd 14.INFN –University Catania (Italy)tbd 15.INFN – Fermi Center (Italy) tbd 16.INFN – Frascati (Italy)Central Detector 17.INFN –University Ferrara (Italy)tbd 18.INFN – University Genoa (Italy)Cental Detector 19.INFN – ISS/Rome 1(Italy)tbd 20.ITEPhysics (Russia)Magnets, Simulations 21.James Madison University (US) CalorimetryM 22.Kyungpook National University (Republic of Korea)CD TOFM 23.Los Alamos National Laboratory (US)Silicon Tracker? 24.Moscow State University, Skobeltsin Institute (Russia)Software, SVTM 25.Moscow State University (High Energy Physics) (Russia) Silicon Tracker 26.Norfolk State University (US) Preshower CalorimeterM 27.Ohio University (US)Preshower CalorimeterM 28.Orsay (Univ. Paris) (France)Central Detector, Neutron Counter 29.Old Dominion University (US)Drift ChambersM 30.Renselear Polytechnic Institute (US) Cerenkov CountersM 31.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 & oversight 35.University of Connecticut (US) Cerenkov CountersM 36.University of New Hampshire (US)Central Tracker, Offline SoftwareM 37.University of Richmond (US)Offline SoftwareM 38.University of South Carolina (US)Forward TOFM 39.University of Virginia (US) Beamline/Polarized TargetsM 40.Yerevan Physics Institute (Armenia)Calorimetry M 41.Virginia Polytechnic Institute (US)?M CLAS12 Institutions and Areas of Responsibilities

12 GeV Upgrade – Hall B MOUs Status* UniversityMOU TypeStatus ArgonneCollaborationDrafted, JLab edits in progress Arizona StateCollaborationDrafted California StateCollaborationDrafted Univ of ConnecticutCollaborationDrafted, JLab edits in progress Florida InternationalCollaborationDrafted Idaho Accel. CenterCollaborationDrafted, JLab edits in progress James MadisonCollab. with NSF detector construction Drafted, JLab edits in progress *data as of Feb 9th, Burkert/Elouadrhiri have more recent status on MOUs which have progressed from JLab edits to start of univ. review process.

12 GeV Upgrade – Hall B MOUs Status* UniversityMOU TypeStatus Kyungpook NationalCollaborationDrafted, JLab edits in progress Moscow StateCollaborationDrafted, JLab edits in progress Univ of New HampshireCollaborationDrafted Norfolk StateWith NSF detector construction Drafted, univ. review in progress Ohio Univ.With NSF detector construction Draft in progress Old DominionCollaborationDraft in progress Rensselaer Polytechnic CollaborationComplete

12 GeV Upgrade – Hall B MOUs Status* UniversityMOU TypeStatus Univ. of RichmondCollaborationDrafted, JLab edits in progress Univ. of S. CarolinaCollaborationDrafted, JLab edits in progress Virginia PolytechnicCollaborationDrafted William & MaryWith detector engineer support Complete William & MaryWith NSF detector construction Draft in progress Yerevan Physics Inst.CollaborationDrafted

Physics Programs Deep Exclusive reactions. GPDs, factorization. DVCS high W, polarization Semi inclusive reactions. SIDIS. Transversity. High Q 2 excited baryon form factors. Quasi-real photoproduction. Color transparency, hadronization. Nucleons in nuclei.

CLAS12 Approved Experiments ProposalContact Person PhysicsEnergy (GeV) PAC days Parallel Running Run Group Comment PR Gothe, Mokeev N* at high Q E aSabatieDVCS pol. beam1180 E Avakian ep→eπ +/-/0 X1160 E StolerDVMP in π 0,η prod L/T separation E bSabatieDVCS pol. target Assume polarized experiments run 50% of time w/ reversed field E KuhnLong. Spin Str.1182 E AvakianTMD SSA11103 PR (b)HafidiPartonic SIDIS11103 PR AvakianSpin-Orbit Corr E HafidiColor Trans. ρ E BrooksQuark Hadronizat.1160 E BültmanNeutron Str. Fn.1140 cond. appr. E GilfoyleNeutron mag. FF /008 need 26d reversed field PR (a)HafidiPartonic SIDIS1156 PR ContalbrigoBoer-Mulders w/ Kaons 1156 Total

The CLAS Collaboration is 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 ProposalTitleSpokespersonsPAC days PAC action PR Nucleon resonance studies with CLAS12 Burkert, Cole, Gothe, Joo, Mokeev,, Stoler 60 PR Studies of Partonic Distributions using semi- inclusive production of Kaons Avakian, Benmokhtar, El Alaoui, Hafidi, Mirazita 159 PR Studies of Boer-Mulders Asymmetry in Kaon Electroproduction w/ hydrogen and deuterium targets Avakian, Contalbrigo, Joo, Meziani, Seitz 56 PR 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 ProposalTitleSpokespersonsPAC daysPAC comments LOI DVCS on the Neutron with CLAS12 S. Niccolai, R. De Vita, M. Mirazita, A. El Alaoui 60YES LOI Transverse Spin Effects in Kaon SIDIS with transversely polarized Target (HD) H. Avakian80YES LOI Semi-inclusive pion production on Deuteron and Proton w/ CLAS12 N. Kalantarians56YES LOI 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 Hall CLAS12 & Infrastructure in Hall B

CLAS12 – Detector Package HTCC Supported on Cart on Space Frame Subway Central Detectors CTOF, SVT Supported from Solenoid Forward Detectors LTCC, FTOF, PCAL, ECAL all Supported by Forward Carriage Drift Chambers Supported

Central Detector Forward Detector CLAS12 - Detector