Search for coherent charged pion production in neutrino-carbon interactions

M. Hasegawa, E. Aliu, S. Andringa, S. Aoki, J. Argyriades, K. Asakura, R. Ashie, H. Berns, H. Bhang, A. Blondel, S. Borghi, J. Bouchez, J. Burguet-Castell, D. Casper, C. Cavata, A. Cervera, S. M. Chen, K. O. Cho, J. H. Choi, U. DoreX. Espinal, M. Fechner, E. Fernandez, Y. Fukuda, T. Hara, K. Hayashi, A. Ikeda, T. Ishii, C. O. Kim, S. B. Kim, K. Kobayashi, T. Kobayashi, T. Maruyama, T. Morita, K. Nakamura, S. Nakayama, K. Okumura, T. Sasaki, H. Sato, M. Sekiguchi, K. Shiraishi, A. Suzuki, Y. Suzuki, T. Takahashi, M. Tanaka, S. Ueda, W. Wang, S. Yamada, S. Yamamoto, M. Yoshida

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156 Citations (Scopus)


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 0.60×10-2 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.

Original languageEnglish
Article number252301
JournalPhysical review letters
Issue number25
Publication statusPublished - Dec 16 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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