First measurement of the muon neutrino charged current single pion production cross section on water with the T2K near detector

Abe, K. and Andreopoulos, C. and Antonova, M. and Aoki, S. and Ariga, A. and Assylbekov, S. and Autiero, D. and Ban, S. and Barbi, M. and Barker, G. J. and Barr, G. and Bartet-Friburg, P. and Batkiewicz, M. and Bay, F. and Berardi, V. and Berkman, S. and Bhadra, S. and Bienstock, S. and Blondel, A. and Bolognesi, S. and Bordoni, S. and Brailsford, D. and Bravar, A. and Bronner, C. and Avanzini, M. Buizza and Calland, R. G. and Campbell, T. and Cao, S. and Rodríguez, J. Caravaca and Castillo, R. and Catanesi, M. G. and Cervera, A. and Cherdack, D. and Chikuma, N. and Christodoulou, G. and Coleman, J. and Collazuol, G. and Coplowe, D. and Dealtry, T. and Finch, A. J. and Grant, N. and Knox, A. and Kormos, L. L. and Lamont, I. and Lawe, M. and Nowak, J. and O'Keeffe, H. M. and Ratoff, P. N. and Shaw, D. and Southwell, L. (2017) First measurement of the muon neutrino charged current single pion production cross section on water with the T2K near detector. Physical Review D, 95 (1). ISSN 1550-7998

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Abstract

The T2K off-axis near detector, ND280, is used to make the first differential cross section measurements of muon neutrino charged current single positive pion production on a water target at energies ${\sim}0.8$~GeV. The differential measurements are presented as a function of muon and pion kinematics, in the restricted phase-space defined by $p_{\pi^+}>200$MeV/c, $p_{\mu^-}>200$MeV/c, $\cos \theta_{\pi^+}>0.3$ and $\cos \theta_{\mu^-}>0.3$. The total flux integrated $\nu_\mu$ charged current single positive pion production cross section on water in the restricted phase-space is measured to be $\langle\sigma\rangle_\phi=4.25\pm0.48~(\mathrm{stat})\pm1.56~(\mathrm{syst})\times10^{-40}~\mathrm{cm}^{2}/\mathrm{nucleon}$. The total cross section is consistent with the NEUT prediction ($5.03\times10^{-40}~\mathrm{cm}^{2}/\mathrm{nucleon}$) and 2$\sigma$ lower than the GENIE prediction ($7.68\times10^{-40}~\mathrm{cm}^{2}/\mathrm{nucleon}$). The differential cross sections are in good agreement with the NEUT generator. The GENIE simulation reproduces well the shapes of the distributions, but over-estimates the overall cross section normalization.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Subjects:
ID Code:
82843
Deposited By:
Deposited On:
14 Nov 2016 11:58
Refereed?:
Yes
Published?:
Published
Last Modified:
03 Apr 2020 03:27