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Analysis on TP detector

Analysis on TP detector. Jaewon Park University of Rochester. MINERvA/Jupiter Group Meeting, Dec 19, 2007. Plan. Basic things. Calorimeter calibration Minimum energy or minimum track length Track efficiencies. Study done mostly using truth process information (no particle id)

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Analysis on TP detector

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  1. Analysis on TP detector Jaewon Park University of Rochester MINERvA/Jupiter Group Meeting, Dec 19, 2007

  2. Plan • Basic things. • Calorimeter calibration • Minimum energy or minimum track length • Track efficiencies. • Study done mostly using truth process information (no particle id) • Focus on processes for TP detector at LE beam: • NC/CC, nu+N->pi0+(mu)+X • NC/CC, nu+N->p+pi0+(mu) • QE nu_e • Before doing particle Id, • Define requirement that defines data sample set. • Particle Id, • Calculate (mis)identification efficiency. • Can we see rare channel(CC nu_e) out of resembling event?

  3. Event sample size • Haven’t check actual (event rate)*(volume)*(time) calculation. • Relative fraction is shown True event info

  4. Traker ECal Minos TP geometry • Geant3-based minerva MC simulation • Using TP geometry + LE beam spectrum • 10 Tracker + 10 Ecal • Start with restriction that primary vertex is within pure plastic part of tracker. • Check track efficiencies. • Calorimeter performance

  5. Track efficiencies Muon Proton

  6. Track efficiencies Tracker is not tuned for gamma Pi+/Pi- Gamma

  7. Track efficiencies Electron (CC nu_e)

  8. Calorimeter energy • Use same calibration constant as full minerva detector. • Do calorimetric energy sum of every hits of reconstructed track. • Haven’t included OD hit energy yet.

  9. Containment • Initial event generated at vz=(-43,0) • Compare with vz=(-43,-30) selection • (start position of gamma track)<-30 will be also useful. Proton Gamma

  10. Containment • Initial event generated at vz=(-43,0) • Leakage in histogram mainly from high energy particle. • Low energy(red) particle shows much less leakage. • How do we know certain track is really low energy particle without looking at true MC value? Proton Gamma E<1.5GeV (53% of reco track) E<0.5GeV (63% of reco track)

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