CLAS Collaboration Meeting

Mar 6, 2018, 1:30 AM → Mar 9, 2018, 5:45 PM US/Eastern

Jefferson Lab

Tue, March 6

7:50 AM → 12:30 PM CLAS12 First Experiment Workshop

Remote connection: https://bluejeans.com/825591695

Convener: Latifa Elouadrhiri (Jefferson Lab)

8:30 AM General introduction/Experiment configuration

Speaker: Latifa Elouadrhiri (Jefferson Lab)

Slides CLAS-Collaboration-Latifa-03062018.pptx

8:45 AM Engineering run overview

Speaker: Nathan Baltzell (Jefferson Lab)

Slides baltzell_engrun_20180306.pdf

9:00 AM Beam line configuration and beam polarization

Speaker: Stepan Stepanyan (Jefferson Lab)

Slides Stepanyan_hallb_beamline.pdf

9:15 AM TORUS coil shape and field map calculation

Speaker: Dave Kashy (JLab)

Slides Coil_Winding_Accuracy_-_CLAS12_Collab_mtg_March_2018_DK_v2.pdf

9:30 AM TORUS magnet field measurement

Speaker: Mr Joseph Newton (Old Dominion University)

Slides TORUS_CollaborationMeeting.pdf

9:45 AM Solenoid magnetic field measurement

Speaker: Sebastian Kuhn (Old Dominion University)

Slides Solenoid.pptx

10:00 AM Coffee Break

10:15 AM DAQ/Trigger setting/perfomance for run group A

Speaker: Sergey Boyarinov (jlab)

Slides CLAS12_DAQ_Trigger_Online_Collab_Meeting_Mar_6_2018.pdf CLAS12_DAQ_Trigger_Online_Collab_Meeting_Mar_6_2018.pptx

10:30 AM Trigger optimization for run group A

Speaker: Dr Valery Kubarovsky (Jefferson Lab)

Slides 2018_03_06_CLAS_meeting_trigger.pdf

10:45 AM Trigger efficiency studies from MC simulations and from data

Speaker: Dr Rafayel Paremuzyan (University of New Hampshire)

Slides CLAS12_Workshop.pdf

11:00 AM Forward Tagger setting/calibration/performance -Status and plans

Speaker: Dr Andrea Celentano (INFN-Genova)

Slides 20180305_firstExperiment.pdf

11:15 AM Silicon Vertex Tracker setting/calibration/performance - status & plans

Speaker: Yuri Gotra (Jefferson Lab)

Slides 2018_03_06_svt.pdf

11:30 AM Micromegas setting/calibration/performance and - status and plans

Speaker: Dr Maxime DEFURNE (CEA Saclay)

Slides MM_update_mar18.pdf

11:45 AM Time-of-flight system setting/calibration/performance - status and plans

Speaker: Dr Daniel Carman (JLab)

Slides tof-status-20180306.pptx

12:05 PM Central Neutron Detector setting/calibration/performances - status and plans

Speaker: Silvia Niccolai (IPN Orsay)

Slides CND_status_report.pdf

12:30 PM → 2:00 PM CLAS Speaker Committee

12:30 PM → 2:00 PM Lunch

2:00 PM → 6:00 PM CLAS12 First Experiment Workshop

Remote connection: https://bluejeans.com/825591695

Convener: Latifa Elouadrhiri (Jefferson Lab)

2:00 PM High Threshold CerenKov setting/calibration/performance - status and plans

Speaker: Youri Sharabian (Jefferson Lab)

Slides HTCC_Status_Colab_Meet_Mar_06_2018.pptx

2:15 PM Drift Chambers setting/calibration/performance - status and plans

Speaker: Mac Mestayer (Jlab)

Slides dc-status-mar6-2018.pdf

2:30 PM DC Calibration - status and plans

Speaker: Latif Kabir (Mississippi State University)

Slides CLAS_Collaboration_March2018_Latif.pdf

2:45 PM Low Threshold Cerenkov setting/calibration performances - status and plans

Speaker: Dr Maurizio Ungaro (Jefferson Lab)

Slides LTCC_Coll._Meeting._3-18.pdf

3:00 PM RICH detector setting/calibration/performance - status and plans

Speaker: Mr Marco Contalbrigo (INFN Ferrara)

Slides RICH_RGA.pdf

3:15 PM Pre-shower calorimeter & electromagnetic calorimeter setting/calibration/performance - status and plans

Speaker: Dr Cole Smith (JLAB)

Slides CLAS12WorkshopMar2019PCALEC.pdf

3:30 PM Coffee Break

3:45 PM CLAS12 MC simulations and comparison with data

Speaker: Dr Maurizio Ungaro (Jefferson Lab)

Slides 20180302_bg_rates.pdf

4:00 PM Data processing status and organization

Speaker: Francois-Xavier Girod (JLab)

Slides report_Tue18Mar06.pdf

4:15 PM Data monitoring online and offline

Speaker: Andrey Kim (UCONN)

Slides Offline_Monitoring.pdf

4:30 PM Online reconstruction status

Speaker: Dr Vardan Gyurjyan (Jefferson Lab)

Slides hall-b-cm.03.04.pptx

4:45 PM Organization and path forward toward physics

Speaker: Latifa Elouadrhiri (Jefferson Lab)

Wed, March 7

8:30 AM → 12:45 PM CLAS Collaboration Meeting - Plenary

Remote connection: https://bluejeans.com/825591695

Convener: Raffaella De Vita (INFN - Genova)

8:30 AM Introductory Remarks

Speaker: Raffaella De Vita (INFN - Genova)

Slides 20180307_collmeet_intro.pdf

8:55 AM News from the Lab

Speaker: Robert McKeown (Jefferson Lab)

Slides BMCK_HallB_Mar18_Final.pptx

9:25 AM Hall B Status

Speaker: Dr Volker Burkert (Jefferson Lab)

Slides HallB-Status.pptx

10:15 AM Coffee Break

10:45 AM Accelerator Status

Speaker: Michael Tiefenback (JLab)

Slides AcceleratorUpdate_2018-03-07.pdf

11:15 AM Highlights from the Theory Group

Speaker: Dr Jianwei Qiu (Jefferson Lab)

Slides CLAS12-Qiu.pdf

11:45 AM Light Meson Decays

Speaker: James Ritman

Slides CLAS_CM-2018-Ritman.pdf

12:15 PM New Institution Membership Application (Duke U.)

Speaker: Dr Anselm Vossen (Duke University)

Slides DukeApplicationToClas12.pdf

12:30 PM New Institution Membership Application (MIT)

Speaker: Richard Milner (MIT)

Slides JLab_MIT_CLAS.pdf

12:45 PM → 2:00 PM Lunch

12:45 PM → 2:00 PM Membership Committee

Convener: Dr Bryan McKinnon (University of Glasgow)

2:00 PM → 3:30 PM CLAS Collaboration Meeting - Plenary: CLAS12 Engineering Run and First Experiment

Remote connection: https://bluejeans.com/825591695

Convener: Raffaella De Vita (INFN - Genova)

2:00 PM CLAS12 Engineering Run

Speaker: Dr Daniel Carman (JLab)

Slides erun-overview-mar18.pptx

2:40 PM Run-Group-A status report

Speaker: Latifa Elouadrhiri (Jefferson Lab)

Slides CLAS-Collaboration-Latifa-03072018.pptx

3:15 PM Discussion

3:30 PM → 4:00 PM Coffee Break

4:00 PM → 6:30 PM CLAS Collaboration Meeting - Plenary

Remote connection: https://bluejeans.com/825591695

Convener: Raffaella De Vita (INFN - Genova)

4:00 PM JLAB Scientific Computing Status and Perspectives

Speaker: Sandy Philpott (Jefferson Lab)

Slides IT_SciComp_CLASCollab.pdf

4:30 PM CLAS12 Event Builder Status

Speaker: Nathan Baltzell (Jefferson Lab)

Slides baltzell-20180306.pdf

4:50 PM New HIPO format and common-tools updates

Speaker: Gagik Gavalian (Jefferson Lab)

Slides HIPODataFormat-Gavalian.pdf

5:15 PM CLAS12 Offline code management and validation

Speaker: Nathan Harrison (Jefferson Lab)

Slides collabMeeting_software_Mar2018.pdf

5:35 PM Machine learning techniques applied to CLAS12 PID

Speaker: Mr Daniel Lersch (Juelich Research Center)

Slides CLAS_collabTalk_Mar2018_PID.pdf

5:55 PM Discussion

6:30 PM → 8:00 PM Reception

Thu, March 8

8:30 AM → 12:40 PM Nuclear Physics Working Group 1

Remote connection: https://bluejeans.com/7168882426

Convener: Dr Michael Wood (Canisius College)

8:30 AM Nuclear Physics Working Group business

Slides NPWG_business_08Mar2018.pdf

8:40 AM probing the repulsive core of the NN interaction from A(e,e’pp)/A(e,e’p) measurements.

Speaker: Axel Schmidt (MIT)

Slides schmidt_clas18.pdf

9:00 AM Analysis of recoil neutrons from EG2 data

Speaker: Dr Igor Korover (NRCN)

Slides Clas_March2018_final.pdf

9:20 AM Constraining neutrino energy reconstructions using electron scattering data

Speaker: Mariana Khachatryan (ODU)

Slides Clas_collab_march2018.pdf

9:40 AM Update on the Analysis of Lambda Electroproduction in EG2 Data.

Speaker: Sereres Johnston (ANL)

Slides LambdaPresentationMarch2018.pdf

10:00 AM The center of mass motion of short-range correlated nucleon pairs studied via the A(e,e'pp) reaction

Speaker: Erez Cohen (Tel Aviv University)

Slides ppSRCcmErez.pdf

8:30 AM → 10:30 AM Hadron Spectroscopy Working Group

Remote connection: https://bluejeans.com/681949276

Convener: Marco Battaglieri (INFN-GE)

8:30 AM Hadron Spectroscopy Working Group Business

Speaker: Dr Marco Battaglieri (INFN-GE)

Slides HSWG-Mar18-summary.pdf

8:50 AM JPAC activity update

Speaker: Jannes Nys (Ghent University)

Slides CLAS2018_(1).pdf

9:10 AM Event generator for exclusive Npi and KY electroproduction at Q^2 up to 12 GeV^2

Speaker: Mr Valerii Klimenko (Moscow State University)

Slides Klimenko_talk.pdf

9:30 AM Analysis of eta->pi+pi-pi0 with CLAS6

Speaker: Mr Daniel Lersch (Juelich Research Center)

Slides CLAS6G12_080318.pdf

9:50 AM K+Sigma- E observable from g14

Speaker: Dr Nicholas Zachariou (University of Edinburgh)

Slides nzachariou_ClasCollab032018.pdf

10:10 AM Lambda-Nucleon Scattering with g12

Speaker: Joey Rowley (Ohio University)

Slides CLAS-Collab-Presentation.pptx

8:30 AM → 1:30 PM Deep Processes Working Group

Remote connection: https://bluejeans.com/824862932

Convener: Mr Marco Contalbrigo (INFN Ferrara)

8:30 AM Deep Processes Working Group Business

Speaker: Marco Contalbrigo (INFN Ferrara)

Slides DPWGreprt_2018_08.pdf

8:35 AM Status report on the polarized target for Run Group C

Speaker: Chris Keith (JLAB)

Slides CLAS_2018_cdk.pdf

8:55 AM Status of DVCS on unpolarized protons in Clas12

Speaker: Guillaume CHRISTIAENS (CEA)

Slides PresentationDVCS_V3.pdf

9:10 AM Status of nDVCS simulations

Speaker: Rong Wang (ORSAY)

Slides Simulation_of_nDVCS_at_CLAS12__2018-03-08.pdf

9:30 AM Deep virtual pi-pi production on the proton in the sigma-meson and rho-meson regime

Speaker: Dilini Bulumulla (ODU)

Slides Dilini_Bulumulla.pdf

9:50 AM Update on E1-f SIDIS analysis for azimuthal modulations

Speaker: Nathan Harrison (Jefferson Lab)

Slides harrison_DPWG_Mar2018.pdf

10:10 AM Update on preparations for BONuS12

Speaker: Aruni Nadeeshani (ODU)

Slides BONuS12_clas.pdf

1:25 PM CLAS12 DVMP

Speaker: Paul stoler (Rensselaer Polytechnic Institute)

10:30 AM → 11:00 AM Coffee Break

11:00 AM → 12:30 PM Nuclear Physics Working Group 1

Remote connection: https://bluejeans.com/7168882426

Convener: Dr Michael Wood (Canisius College)

11:00 AM Analysis of charged and neutral pion hadronization with EG2 data

Speakers: Raphaël Dupré (IPN Orsay), hayk hakobyan (UTFSM)

Slides HHakobyan_CallMeeting.pdf

11:20 AM Tagging SRCs and the EMC effect from A(e,e’p_recoil) measurements.

Speaker: Barak Schmookler (MIT)

Slides clas_coll_mar18.pdf

11:40 AM Probing 2N-SRC via (e,e'N) reactions off 3,4He and 12C targets

Speaker: Reynier Cruz Torres (MIT)

Slides 180308_CLAS_meeting.pdf

12:00 PM Using Kinematic Fitting for CLAS EG6 Event Selection

Speaker: Mr Frank Cao (UConn)

Slides 180309_clascollab_kinfit-dvmp.pdf

11:00 AM → 12:30 PM Hadron Spectroscopy Working Group

Remote connection: https://bluejeans.com/681949276

Convener: Marco Battaglieri (INFN-GE)

11:00 AM A Study of Lambda(1520) photoproduction

Speaker: Mr Utsav Shrestha (Ohio University)

Slides shrestha1.pdf

11:20 AM Polarization Observables from Strangeness Photoproduction on g9a

Speaker: Dr Stuart Fegan (GWU)

Slides SFegan_CLAS_HSWG_Mar2018.pdf

11:40 AM Polarization Observables T and F in the gamma p to p pi0 reaction (g9b)

Speaker: Mr Hao Jiang (University of South Carolina)

Slides clas2_haojiang.pdf

12:00 PM Analysis Reviews status

Speaker: Dr Marco Battaglieri (INFN-GE)

Slides HSWG-Mar18-reviews.pdf

11:00 AM → 12:40 PM Deep Processes Working Group

Remote connection: https://bluejeans.com/824862932

Convener: Mr Marco Contalbrigo (INFN Ferrara)

11:00 AM Beam spin asymmetries (A_LU) from Kaon (K+ and K-) SIDIS

Speaker: Mr David Riser (University of Connecticut)

Slides 2018_March_Collaboration.pdf

11:20 AM Plans for di-hadron analysis

Speaker: Dr Anselm Vossen (Indiana University)

Slides CollabMeetingDeepProcessesVossen.pdf

11:40 AM Acceptance Corrections for Inclusive DIS: Bin-by-bin method vs. Matrix conversion method

Speaker: Prof. Kyungseon Joo (University of Connecticut)

Slides Deep_Process_March_2018_Joo.pdf Deep_Process_March_2018_Joo.pptx

11:55 AM Analysis framework for hard scattering processes

Speaker: Gagik Gavalian (Jefferson Lab)

Slides TMD-Extraction.pdf

12:10 PM Data output for extraction of SFs from DIS and SIDIS

Speaker: Avakian Harut (JLAB)

Slides 2017.march8.jlab.DPWG.pdf

12:25 PM Strategy of the CLAS12 data analysis

12:30 PM → 2:30 PM Lunch

12:30 PM → 2:30 PM CLAS Coordinating Committee Meeting

Convener: Raffaella De Vita (INFN - Genova)

2:30 PM → 4:00 PM CLAS WGs Joint Session: CLAS12 physics and analyses

Remote connection: https://bluejeans.com/825591695

Conveners: Latifa Elouadrhiri (Jefferson Lab), Dr Marco Battaglieri (INFN-GE), Mr Marco Contalbrigo (INFN Ferrara), Dr Michael Wood (Canisius College)

2:30 PM First look at CLAS12 data from online and offline data processing

Speaker: Francois-Xavier Girod (JLab)

Slides report_Thu18Mar08.pdf

3:00 PM Analysis of elastic scattering at 2.2 GeV

Speaker: Nick Markov (University of Connecticut)

Slides elasticCSCollab.pdf

3:20 PM CLAS12 kinematic corrections

Speakers: Joshua Artem Tan, Dr Stefan Diehl (University of Connecticut)

Slides Diehl_CLAS_meeting_march_kincorr.pdf

3:40 PM Discussion

4:00 PM → 4:30 PM Coffee Break

4:30 PM → 6:10 PM CLAS WGs Joint Session: CLAS12 physics and analyses

Remote connection: https://bluejeans.com/825591695

Conveners: Latifa Elouadrhiri (Jefferson Lab), Dr Marco Battaglieri (INFN-GE), Mr Marco Contalbrigo (INFN Ferrara), Dr Michael Wood (Canisius College)

4:30 PM Normalized electron yields

Speaker: Andrey Kim (UCONN)

Slides NormalizedElectronYield.pdf

4:50 PM First look at DIS and SIDIS

Speaker: Dr Harut Avagyan (Jefferson Lab)

Slides 2018.March8.jlab.ccm.pdf

5:10 PM Analysis of low-q, quasi-real processes

Speaker: Dr Derek Glazier (University of Glasgow)

Slides QuasiRealGlazier.pdf

5:30 PM Analysis of ep->eppi0 from CLAS12 2.2 GeV data and comparison with CLAS e1e

Speaker: Ken Hicks (Ohio University)

Slides 2018-03-CLAS-eppi0-2GeV.pdf

5:50 PM Discussion

Fri, March 9

8:40 AM → 12:45 PM CLAS Collaboration Meeting - Plenary

Remote connection: https://bluejeans.com/825591695

Convener: Raffaella De Vita (INFN - Genova)

8:40 AM Hadron Spectroscopy

Speaker: Marco Battaglieri (INFN-GE)

Slides HSWG-Mar18-summary.pdf

9:00 AM Nuclear Physics Report

Speaker: Dr Michael Wood (Canisius College)

Slides NPWG_report_08Mar2018.pdf

9:20 AM Deep Processes Report

Speaker: Mr Marco Contalbrigo (INFN Ferrara)

Slides DPWGreprt_2018_08_final.pdf

9:40 AM Coherent omega phoproduction on the deuteron

Speaker: Mr Taya chetry (Ohio University)

Slides CLAS0318_taya.pdf

10:05 AM Q2 dependence of the deuteron spin structure function g1 and its moments from EG4

Speaker: Dr Alexandre Deur (Thomas Jefferson National Accelerator Facility)

Slides EG4_ND3results_feb18.pdf

10:30 AM Coffee Break

10:50 AM Study of Color Transparency in Exclusive Vector Meson Electroproduction off Nuclei

Speaker: Dr Lamiaa El Fassi (MSU)

Slides CT_CLASColl0318.pdf

11:15 AM Measurement of the helicity asymmetry E in omega -> pi+pi-pi0 photoproduction

Speaker: Mr Zulkaida akbar (Florida State University)

Slides ZulkaidaAkbar_CLASplenary.pdf

11:40 AM Membership Committee Report

Speaker: Dr Bryan McKinnon (University of Glasgow)

Slides CLASMemCommMar2018Report.pdf

11:55 AM Speakers Committee Report

Speaker: Dr Lamiaa El Fassi (MSU)

Slides CSC_report_03_2018.pdf

12:10 PM Service work Commitee Report

Speaker: Silvia Niccolai (IPN Orsay)

Slides SWC_report_3_2018.pdf

12:25 PM Final Remarks and Closeout

Speaker: Raffaella De Vita (INFN - Genova)

Slides 20180308_collmeet_closing.pdf 201803_collmeet_dtilles.pdf

12:45 PM → 2:15 PM Lunch

1:00 PM → 5:45 PM Deep Processes Working Group

Remote connection: https://bluejeans.com/824862932

Convener: Mr Marco Contalbrigo (INFN Ferrara)

1:25 PM CLAS12 DVMP

Speaker: Paul stoler (Rensselaer Polytechnic Institute)

Slides CLAS12-DVMP.pdf

1:30 PM Theoretical Overview of Status of DVMP

Speaker: Christian Weiss (Jefferson Lab)

Slides weiss18_clas18.pdf

2:10 PM Overview and status of phi experiment

Speaker: Francois-Xavier Girod (JLab)

Slides girod_CLAS_090318.pdf

2:35 PM Analysis of pi0 at 12 GeV

Speaker: Andrey Kim (UCONN)

3:00 PM Coffee Break

3:15 PM Decomposing quark flavors via DVMP

Speaker: Prof. simonetta liuti (university of virginia)

Slides sl_HallB_pi018.pdf

3:45 PM Decomposing quark flavors via eta and pi0

Speaker: Dr Valery Kubarovsky (Jefferson Lab)

Slides 2018_03_09_transversity-CLAS.pdf

4:10 PM Forward and backward BSA from pi+ pi0 and pi-

Speaker: Diehl Stefan (UCONN)

Slides Diehl_CLAS_meeting_march_BSA.pdf

4:35 PM BSA from pi0 exclusive channel on 4He

Speaker: Mr Frank Cao (UConn)

Slides 180309_clascollab_kinfit-dvmp.pdf

5:00 PM Data output for extraction in hard processes

Speaker: Dr Harut Avagyan (Jefferson Lab)

Slides Harut_2017.march8.jlab.DPWG.pdf

5:20 PM Group discussion