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K2K Collaboration; Hasegawa, M.; Burguet Castell, Jordi; Cervera Villanueva, Anselmo; Gómez Cadenas, Juan José; Novella Garijo, Pau; Vidal Sitjes, Gabriel; Tornero López, Ana María | |||
Aquest document és un/a article, creat/da en: 2005 | |||
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We report the result from a search for charged-current coherent pion production induced by muon neutrinos with a mean energy of 1.3 GeV. The data are collected with a fully active scintillator detector in the K2K long-baseline neutrino oscillation experiment. No evidence for coherent pion production is observed, and an upper limit of 0.60x10(-2) is set on the cross section ratio of coherent pion production to the total charged-current interaction at 90% confidence level. This is the first experimental limit for coherent charged pion production in the energy region of a few GeV. | |||
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