Measurement of single pi(0) production in neutral current neutrino interactions with water by a 1.3 GeV wide band muon neutrino beam

摘要

Neutral current single pi(0) production induced by neutrinos with a mean energy of 1.3 GeV is measured using a 1000 ton water Cherenkov detector in the K2K long baseline neutrino experiment. The cross section for this process relative to the total charged current cross section is measured to be 0.064 +/- 0.001(stat.) +/- 0.007(sys.). The momentum distribution of neutral current pi(0)s from a water target is measured with high statistics for the first time. (c) 2005 Elsevier B.V. All rights reserved.