Meetings DDVCS

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Date and Location: Weekly Tuesday 10:15AM

Conference ID 	892856650 
Desktop sharing and video https://bluejeans.com/892856650
(You don't need to call in by phone if your PC has a mic and a speaker, 
but do REMEMBER to turn off mic and speaker to avoid echo if you use phoneline for audio)
Audio Dial: 18882402560 (US or Canada only) (see all numbers) and enter the Conference ID
meeting system "bluejeans" howto https://hallaweb.jlab.org/wiki/index.php/Bluejeans_howto

• 2016/06/07
  • Patrick's slide about rates in muon detector Media:Patrick slides 6 7.pdf

• 2016/05/31
  • pptxpdf SoLID DDVCS mm signal stat error, Zhiwen
  • pptxpdf SoLID DDVCS ee, Zhiwen

• 2016/05/24
  • Agenda
    • Discussion possible e+e- measurement
    • Muon detector update (Patrick) [2]
    • pptxpdf 2 pi background

• 2016/05/17
  • Agenda
    • Detector support costs about 160 kEuros File:Https://hallaweb.jlab.org/wiki/images/a/ab/CostEstimateMuonSupport.png
    • Electronics costs about 300 K$
    • Simulation update
    • New Generated files, normalization
    • Update muon detector (Patrick) [Media:DDVCS_slides_5_17.pdf]
    • Weizhi's talk about GEM occupancy for J/psi [3]

• 2016/05/03
  • Agenda
    • Patrick ( working on energy spectrum in muon detector )
    • Generated files, kinematic ( Zhiwen / Alex )
    • Draft SoLID presentation (Eric) Media:SoLID-DDVCS-May-3rd-2016.pdf
    • Draft proposal ( Zhiwen ) [4]
    • pptxpdf 2 pi background

• 2016/04/26
  • Agenda
    • Update Mechanical design Media:IPNO 26 04 2016.pdf
    • Update DDVCS generator
    • Update counting rates (Eric) [5]
    • [6] exp draft in progress, Zhiwen
    • [7] two pion background, Zhiwen
    • Draft slides

• 2016/04/19
  • Agenda
    • Update DDVCS generator (Marie) Media:DDVCSgenstatus 19avril2016.pdf
    • Update trigger and background(Zhiwen) pptxpdf
    • Update detector (Patrick) Media:Moran DDVCS 4 18.pdf

• 2016/04/12
  • Agenda
    • Patrick thickness study
      • File:Pion-rates-Patric.png
    • summary discussion with Eric on detector
    • pptxpdf Simulation update, Zhiwen
    • Proposal writing planning

• • Agenda
    • Discussion mechanical design muon detector
    • Update from Patrick on Muon detector simulation
    • Update from Marie on Event Generator
  • Summary
    • Patrick not done yet with plots, will send in the next few days
    • Discussion about trigger rates, triggering on the third detectors after two layers of detector seems ok
    • Marie : still testing / debugging bad bins
    • Mechanical design : Christine has a preliminary design which covers the acceptance using 12 pieces of iron ( 6 out of 8 large iron slabs ) can only have two layers without getting additionnal iron

• 2016/03/29
  • Agenda
    • Discussion mechanical design muon detector
    • Discussion Large angle muon detector ( Kondo )
    • Discussion funding requests and responsibilities between institutions ( All )
    • Background update from Zhiwen ( not sure if he will be around but we can discuss what he sent )
    • Update from Patrick on Muon detector simulation
    • Update from Eric about new VGG code testing
    • Update from Marie on Event Generator
    • Organization proposal directory ( Alex )
  • Summary
    • Marie : checking the grid, working for TCS, small issue with DDVCS grid, working on it
    • Eric VGG setup working now, can check kinematics

• 2016/03/22
  • Marie Grid ran last week, seems to work, Marie cross checking.
  • pptxpdf Simulation update (Zhiwen)
  • Eric/Michel : implemented right Jacobian for Jacobian the lab. About 20 % because assumed photon mass. How mass muon is implemented, previous had only electron mass for pair. New version with muon coming this week

• 2016/03/18
  • Patrick's slides [8]
  • pptxpdf Simulation update (Zhiwen)

• 2016/03/10
  • Update Temple Detector simulation
  • Task lists
    • Alexandre muon detector and experimental setup
    • Eric : counting rates BH with VGG
    • Zhiwen : more detailed on simulation
    • Temple : muon and pion efficiency rejection and optimization of absorber ( 3 layers , from 30 up to 90 cm thickness )
    • muon background effect of vertex cut
  • Update DDVCS files event generation
  • pptxpdf Simulation update (Zhiwen)

• 2015/06/03
  • Tasks
    • Simulation trigger rates ( Zhiwen )
    • Simulation pion contamination ( Zhiwen, French students ? )
    • Simulation effect of muon loss of acceptance bottom ?
    • Check event generator , (finer grid) ( Marie and student )
    • Detector around end cap
    • Install GEMC ( Alexandre ,Dominique ) Done !
    • VGG study ( Alexandre , Eric , Dominique )
    • Write up for SoLID committee and PAC

• 2015/05/26 & 2015/05/28
  • pptxpdf more about background, Zhiwen Zhao
  • Tasks
    • Simulation trigger rates ( Zhiwen )
    • Simulation pion contamination ( Zhiwen, French students ? )
    • Simulation effect of muon loss of acceptance bottom ?
    • Check event generator , (finer grid) ( Marie and student )
    • Detector around end cap
    • Install GEMC ( Alexandre ,Dominique )
    • VGG study ( Alexandre , Eric , Dominique )
    • Write up for SoLID committee and PAC

• 2015/05/09
  • pptxpdf (after fixing a bug in the code, kinematics should be correct now) Zhiwen Zhao
• 2015/04/21
  • Kinematic Eric Voutier updated slides pdf
  • Detector configurations Alexandre Camsonne pdf
• 2015/03/31
  • pptxpdf Zhiwen Zhao
• 2015/03/24
  • pptxpdf Zhiwen Zhao
• 2015/03/17
  • pptxpdf Zhiwen Zhao