Simulation studies for j/psi at 12 A Gev and 30 A GeV energies
Mukesh Kumar SharmaResearch Scholar
University of Jammu
04/21/23 15th CBM-India Collaboration Meeting, BHU
OUTLINE
MOTIVATIONMuCh GEOMETRYDATA SET USEDOBSERVATION
04/21/23 25th CBM-India Collaboration Meeting, BHU
MOTIVATION
MuCh Detector is aimed to detect dimuon in heavy ion collision
SIS100 simulation with new geometryOptimization of geometryThe aim is to study supression of heavy quarks
resonances J/psi .The supression of these heavy quarks resonances is most promising signature of QGP
04/21/23 35th CBM-India Collaboration Meeting, BHU
CbmRoot Version: Trunk version
MuCh geometry : Standard Geometry
• 2 layers in 5 stations
• Distance between layers ->10 cm.
• Gap between absorbers ->20 cm
• 3 layers at the last trigger station
• Total 13 layers
• Total length of MuCh = 350 cm
Signal : J/ decayed muons from Pluto
Background : minimum bias UrQMD events for Au+ Au at 12 GeV and p-Au at 30GeV for 3k events
Input : reconstructed MuCh hits
Simulation
Absorber thickness (cm):20 20 20 30 35 100
04/21/23 45th CBM-India Collaboration Meeting, BHU
DATA SET USED• Simulation of Au-Au and p-Au at 12 GeV and
30 GeV for 3k events• Cuts used 70% hit criterion(reconstructable
track)• No. of Much-hits >10• No. of sts-Hits>4• Event Generation Signal events->Pluto Background-> URQMD04/21/23 55th CBM-India Collaboration Meeting, BHU
OBSERVATIONFOR
SIGNAL EVENTS
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12 Gev 30 GeV
Au-Au at 12 GeV p-Au at 30 Gev
MOMENTUM DISTRIBUTION
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Au-Au at 12 GeV p-Au at 30 Gev
Pt DISTRIBUTION
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Au-Au at 12 GeVp-Au at 30 Gev
RAPIDITY DISTRIBUTION
04/21/23 95th CBM-India Collaboration Meeting, BHU
PSEUDORAPIDITY DISTRIBUTION
Au-Au at 12 GeV p-Au at 30 Gev04/21/23 105th CBM-India Collaboration Meeting, BHU
p-Au at 30 GevAu-Au at 12 GeV
Rapidity vs Pt
04/21/23 115th CBM-India Collaboration Meeting, BHU
Au-Au at 12 GeV p-Au at 30 Gev
INVARIANT MASS DISTRIBUTION
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OBSERVATIONSFOR
EMBEDED EVENTS
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MOMENTUM DISTRIBUTION
Au-Au at 12 GeV
p-Au at 30 Gev04/21/23 145th CBM-India Collaboration Meeting, BHU
Pt DISTRIBUTION
Au-Au at 12 GeV
p-Au at 30 Gev04/21/23 155th CBM-India Collaboration Meeting, BHU
RAPIDITY DISTRIBUTION
Au-Au at12Gev
p-Au at 30 Gev04/21/23 165th CBM-India Collaboration Meeting, BHU
PSEUDORAPIDITY DISTRIBUTION
Au-Au at12Gev
p-Au at 30 Gev04/21/23 175th CBM-India Collaboration Meeting, BHU
Au-Au at12Gev
Rapidity vs Pt
p-Au at 30 Gev04/21/23 185th CBM-India Collaboration Meeting, BHU
Au-Au at12Gevp-Au at 30 Gev
Invariant mass distribution
04/21/23 195th CBM-India Collaboration Meeting, BHU
FUTURE PLANS
Geomtry Optimization for SIS100 Particle production studies at 12 A Gev and 30
A Gev for Au-Au and p-Au. Comparison with the results from AGS
experiments
04/21/23 205th CBM-India Collaboration Meeting, BHU
THANKS
04/21/23 215th CBM-India Collaboration Meeting, BHU
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