TCS with ECCE
Uncover the detailed analysis of TCS events in particle physics, focusing on event generation, cross-section and acceptance calculations, phase space reconstruction, and pseudorapidity counts. Dive into the significance of scattered protons, decay lepton pairs, and missing mass observations across different beam energies. Witness the insights gained from experimental data and kinematic studies for a comprehensive understanding of TCS phenomenon.
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Presentation Transcript
TCS with ECCE Kayleigh Gates
Events generated 500k events at beam energy 5x41 500k events at beam energy 18x275 Only negative helicity in the upcoming plots positive helicity generated but not yet included. Final state detected scattered proton (Roman Pots) and decay lepton pair (Calorimeters). Scattered electron reconstructed as missing X , as in the yellow report.
Events Generated TCS+BH+Interference YR/PARTONS TCS kinematics used t = -1GeV2to 0 GeV2 Q'2= 2GeV2 to 10GeV2 Phi = 0 to 2pi PhiS = 0 to 2pi Theta = pi/4 to 3pi/4 y = 0.01 to 0.95 Q2= 0 GeV2to 0.15GeV2
Cross section and acceptance 5x41 Integrated cross section out of EpIC around 0.3nb, cross section here displayed as femtobarns divided by integrated luminosity of 10?? 1 1nb = 106?? ? 2 ? ?? where ? = ? + ?2 ? = 2
Cross section and acceptance 18x275 Acceptance drops for all variables at higher beam energies.
2D phase space 5x41 Good reconstruction of Q 2 between 2GeV2 to 10GeV2 at low t.
2D phase space 18x275 Slightly poorer reconstruction at higher Q 2 at low t. Poorer t reconstruction overall.
Pseudorapidity counts and acceptance 5x41 Top = scattered proton Middle = scattered electron Bottom = virtual photon reconstructed from decay lepton pair
Pseudorapidity counts and acceptance 18x275 Scattered proton far forward for both beam energies Roman Pots essential Acceptance noted to drop at higher beam energies
Missing Mass Top = 5x41 Bottom = 18x275 18x275 shifted off zero, looked to be corrected by preliminary study into adding 1% momentum smearing to Roman Pots
Next Steps 1% Momentum smearing to mimic RP resolution Check calorimeter calibration Rectify ranges on 2D plots
