PHYSICAL REVIEW D 101, 012007 (2020)

ISSN: 1550-7998, SCIE

Measurement of the muon neutrino charged-current single π+ production on hydrocarbon using the T2K off-axis near detector ND280

The T2K Collaboration (K. Abe, ..., N. T. Hong Van, ...)

We report the measurements of the single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K offaxis near detector using 5.56 × 10^20 protons on target. The analysis uses data control samples for the background subtraction and the cross section signal, defined as a single negatively charged muon and a single positively charged pion exiting from the target nucleus, is extracted using an unfolding method. The model-dependent cross section, integrated over the T2K off-axis neutrino beam spectrum peaking at 0.6 GeV, is measured to be σ = (11.76 +- 0.44(stat) +-2.39(syst)) × 10^−40 cm2 nucleon^−1. Various differential cross sections are measured, including the first measurement of the Adler angles for single charged pion production in neutrino interactions with heavy nuclei target.

DOI: 10.1103/PhysRevD.101.012007