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ND Sessions Summary II

Mike Kordosky UCL Ely, 2005. ND Sessions Summary II. Nathaniel: Calibration. Donna: y-fitting. Donna: y-fitting. Debdatta: DIS event selection. nu. nu-bar. LE beam. nu. ME beam. nu-bar. reco energy (0-50 GeV). Masaki: Track Angle.

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ND Sessions Summary II

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  1. Mike Kordosky UCL Ely, 2005 ND Sessions Summary II

  2. Nathaniel: Calibration

  3. Donna: y-fitting

  4. Donna: y-fitting

  5. Debdatta: DIS event selection nu nu-bar LE beam nu ME beam nu-bar reco energy (0-50 GeV)

  6. Masaki: Track Angle • Supression of small angle tracks in ME,HE data • Possibly due to poor DIS model at low x • New DIS model may fix LE ME HE Muon track cosine

  7. Debdatta & Donna: X-section Before After F2(x,Q2) Q2 (1-1000 GeV2)

  8. M.K.: Intranuke • Intranuke makes large difference • But not silver bullet

  9. Tricia: BMPT reweighting Peak Position Best Fit Best Fit • Tried to modify BMPT parameterization to fit data • Large modifications cause little change in peak Data Nominal MC ~1% Best Fit Reco Neutrino Energy (GeV) Trial #

  10. Tricia: pT & energy spectra Data=black, MC=red LE LE-10 pion pT 0 - 0.09 GeV/c 0.09 – 0.4 GeV/c 0.4+ GeV/c HE ME reco neutrino energy (0-30 GeV)

  11. Mark QE, Niki clean CC Niki: Clean CC ME Data Mark: ~70% QE ME MC reco. neutrino energy (GeV) reco. muon energy (GeV)

  12. K2K Mark: Low Q2 suppression ME MC Q2 (0-2 GeV2) ME Data ~70% Pure QE MiniBoone Q2 (0-2 GeV2) Q2 (0-3 GeV2)

  13. Tingjun et al: Nue variables

  14. Niki/David NC/CC PID variables Niki Dave PID parameter

  15. Conclusions • Lots of work being done understanding beam scan • Shift in energy distribution seen in many samples • Many things to think about: • reconstruction (Niki's talk) • physics effects (intranuke... but consider QE too) • calibration • beam effects (pT & energy, not BMPT “tuning”) • Fairly good agreement in shower shape variables (Nue group) • Low Q2 suppression in QE sample? • NC/CC PID variables reasonably agree between data and MC • Glad we did the beam scan!

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