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Measuring Coherent Pion Production at Low E n Jorge G. Morfín Fermilab

Measuring Coherent Pion Production at Low E n Jorge G. Morfín Fermilab. Coming into NuInt09 CC coherent pion production. Experiments with the SciBar detector in two beams yield results consistent with no CC coherent pion production at low neutrino energies. SciBar in K2K Beam.

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Measuring Coherent Pion Production at Low E n Jorge G. Morfín Fermilab

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  1. Measuring CoherentPion Production at Low EnJorge G. MorfínFermilab

  2. Coming into NuInt09CC coherent pion production Experiments with the SciBar detector in two beams yield results consistent with no CC coherent pion production at low neutrino energies SciBar in K2K Beam SciBar in BooNE Beam R. Gran - Neutrino Experiment Review

  3. Coming into NuInt09NC coherent pion production is “fine” MiniBooNE analysis of NC neutral pions. The model is doing a reasonable job (after some fitting) of getting both the resonance and coherent production kinematics. resonance πo coherent πo

  4. New at NuInt09SciBooNE (CC) Analysis n n  

  5. For NuInt1xMINERnA CC Coherent Selection(Based on original RS model) Resolutions: 0.5° track pointing Muon: 5% stop 12% curvature Charged Ep: 18%/sqrt (E) Cuts for a CC coherent Enriched sample X < 0.2 t < 0.2 GeV2 Pp > 600 MeV/c Final Sample: ≈ 30% efficiency ≈ 60% purity

  6. MINERnA CC Coherent Measurements Rein-Seghal Paschos- Kartavtsev RS Problems MINERnA MINERnA’s nuclear targets allow the first measurement of the A-dependence of scoh across a wide A range MiniBooNe, SciBooNE and K2K measurements

  7. MINERnA CC Coherent Pion Production: Low energies • With 4 x 1020 POT and a 3 ton fiducial volume, the LE neutrino beam will produce ~ 900 CC coherent pions in the important energy range of < 3 GeV and, with a (30)% detection efficiency, we will have ≈ 300 events in a final sample (≈ 60% purity).

  8. Performance:p0 Energy and Angle Reconstruction • p0’s cleanly identified • p0 energy resolution: 6%/sqrt(E) • p0 angular resolution better than smearing from physics Coherent, resonance events withp0

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