6th International Workshop on Neutrino-Nucleus Interactions in the Few-GeV Region (NUINT 09)

Measurement of inclusive p0 production in the charged current interactions of neutrinos in a 1.3 GeV wide band beam in the K2K-Scibar detector

19 May 2009, 18:30

2h

Sitges (Barcelona) Spain

Poster Single pion production Poster session and cocktail reception

Speaker

camillo mariani (Columbia university)

Description

In this poster we report on the measurement of the rate of the inclusive π production induced by charged-current neutrino interactions in the K2K SciBar detector, at a mean energy of 1.3 GeV in the K2K near detector. Out of a sample of 11,606 charged current neutrino interactions, we select 479 π0 events with two reconstructed photons. We find that the cross section ratio of the inclusive π0 production to the charged-current quasi-elastic cross section averaged over the K2K neutrino beam is: σCCp0 / σCCQE = 0.443 ± 0.033(stat.) ± 0.036(syst.) that shows an excess of (49 ± 16)% (statistical and systematic errors added in quadrature) with respect to the prediction of our reference Monte Carlo simulation. Taking the single pion contribution from the charged-current single pi+ production measurement, the results above corresponds to a measurement of the charged-current deep inelastic cross section σCC−DIS / σCCQE = 0.381 ± 0.013(stat.) ± 0.046(syst.)

Presentation materials

Poster

mariani_nuint09.pdf.pdf

proceedings

mariani.pdf.pdf

transfer of copyright agreement

copyright_agreement.pdf