Difference between revisions of "Meetings DDVCS"

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Tuesdays at 10 AM

Alexandre Camsonne is inviting you to a scheduled ZoomGov meeting.

Topic: SoLID DDVCS and CLFV Time: This is a recurring meeting Meet anytime

Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1612135179?pwd=VXFDTVkwYUFmR2dldmxhdWtFaDR1UT09

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• 2023/01/31
  • [DDVCS]
  • [DDVCS tasks]
  • Zhiwen shows introduction of detector setup
    • Sonny - close muons detector could help for pion background - large angle
    • Zhiwen - running single pion background
    • JP Chen - pion background in large angle muons - how good muons/pion ?
    • Alex : check PVDIS setup with muon detector for CLFV
    • Ron : 30 m2 500 K$ in hardware straw tubes, Fermilab 2 inch diameter tube, + electronics
    • Scintillators more 10 m2 for 300 K$ 800 $ per PMT, scintillator 6 cm thick
    • MRPC : 10 m2 4 M$ + electronics - 1 cm strip size -

• 2022/12/13
  • Minimum DDVCS setup

500px

• • Updates
    • Simulation
      • Eric and Zhiwen discussing with Discussion with Zhiwen, Eric and Sebastian, to work on simulation
      • Marie has files generated that could be also used for cross checks https://solid.jlab.org/wiki/index.php/DEEPGen_event_generator
      • update meson part of gen
    • need to check the iron
    • Pythia background : check with Zhiwen ( Ye Tian can run Pythia ) , should run in DDVCS simulation and look at muons ( look at what was done for other experiments like SIDIS), look at J/Psi for the tail , check with J/Psi proposal
    • Yulia got samples and file reader, Yulia is able to run and make histograms, still need to at analysis, early January : maybe go for LOI for this PAC ( could be run group if DDVCS approved )
    • preliminary simulation check by Xinzhan, seems to be able to work, Xinzhan can help on proposal, Geant4 simulation for crystals ( 22 MHz / per crystal for 2 cm x 2 cm )
    • Ron Gilman interested to contribute to proposal for muon detector

• 2022/10/31
  • sticking to GEMC and Weizhi's tracking for this year
  • SoLID muon task tracker : https://redmine.jlab.org/projects/solid-muons/issues

• 2016/06/07
  • Patrick's slide about rates in muon detector [1]

• 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) [[3]]
    • Weizhi's talk about GEM occupancy for J/psi [[4]]

• 2016/05/03
  • Agenda
    • Patrick ( working on energy spectrum in muon detector )
    • Generated files, kinematic ( Zhiwen / Alex )
    • Draft SoLID presentation (Eric) [5]
    • Draft proposal ( Zhiwen ) [6]
    • pptxpdf 2 pi background

• 2016/04/26
  • Agenda
    • Update Mechanical design [7]
    • Update DDVCS generator
    • Update counting rates (Eric) [8]
    • [9] exp draft in progress, Zhiwen
    • [10] two pion background, Zhiwen
    • Draft slides

• 2016/04/19
  • Agenda
    • Update DDVCS generator (Marie) [11]
    • Update trigger and background(Zhiwen) pptxpdf
    • Update detector (Patrick) [12]

• 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

File:Image 2 solid.jpg File:Image 1 solid.jpg

• 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 [13]
  • 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