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Phys Rev Lett. 2005 Dec 16;95(25):252301. Epub 2005 Dec 12.

Search for coherent charged pion production in neutrino-carbon interactions.

Hasegawa M1, Aliu E, Andringa S, Aoki S, Argyriades J, Asakura K, Ashie R, Berns H, Bhang H, Blondel A, Borghi S, Bouchez J, Burguet-Castell J, Casper D, Cavata C, Cervera A, Chen SM, Cho KO, Choi JH, Dore U, Espinal X, Fechner M, Fernandez E, Fukuda Y, Gomez-Cadenas J, Gran R, Hara T, Hasegawa T, Hayashi K, Hayato Y, Helmer RL, Hill J, Hiraide K, Hosaka J, Ichikawa AK, Iinuma M, Ikeda A, Inagaki T, Ishida T, Ishihara K, Ishii T, Ishitsuka M, Itow Y, Iwashita T, Jang HI, Jeon EJ, Jeong IS, Joo KK, Jover G, Jung CK, Kajita T, Kameda J, Kaneyuki K, Kato I, Kearns E, Kerr D, Kim CO, Khabibullin M, Khotjantsev A, Kielczewska D, Kim JY, Kim SB, Kitching P, Kobayashi K, Kobayashi T, Konaka A, Koshio Y, Kropp W, Kubota J, Kudenko Y, Kuno Y, Kutter T, Learned J, Likhoded S, Lim IT, Loverre PF, Ludovici L, Maesaka H, Mallet J, Mariani C, Maruyama T, Matsuno S, Matveev V, Mauger C, McConnel K, McGrew C, Mikheyev S, Minamino A, Mine S, Mineev O, Mitsuda C, Miura M, Moriguchi Y, Morita T, Moriyama S, Nakadaira T, Nakahata M, Nakamura K, Nakano I, Nakaya T, Nakayama S, Namba T, Nambu R, Nawang S, Nishikawa K, Nitta K, Nova F, Novella P, Obayashi Y, Okada A, Okumura K, Oser SM, Oyama Y, Pac MY, Pierre F, Rodriguez A, Saji C, Sakuda M, Sanchez F, Sarrat A, Sasaki T, Sato H, Scholberg K, Schroeter R, Sekiguchi M, Sharkey E, Shiozawa M, Shiraishi K, Sitjes G, Smy M, Sobel H, Stone J, Sulak L, Suzuki A, Suzuki Y, Takahashi T, Takenaga Y, Takeuchi Y, Taki K, Takubo Y, Tamura N, Tanaka M, Terri R, T'jampens S, Tornero-Lopez A, Totsuka Y, Ueda S, Vagins M, Whitehead L, Walter CW, Wang W, Wilkes RJ, Yamada S, Yamamoto S, Yanagisawa C, Yershov N, Yokoyama H, Yokoyama M, Yoo J, Yoshida M, Zalipska J; K2K Collaboration.

Author information

1
Department of Physics, Kyoto University, Kyoto 606-8502, Japan.

Abstract

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 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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