Measurement of single π0 production in neutral current neutrino interactions with water by a 1.3 GeV wide band muon neutrino beam

S. Nakayama, C. Mauger, M. H. Ahn, S. Aoki, Y. Ashie, H. Bhang, S. Boyd, D. Casper, J. H. Choi, S. Fukuda, Y. Fukuda, R. Gran, T. Hara, M. Hasegawa, T. Hasegawa, K. Hayashi, Y. Hayato, J. Hill, A. K. Ichikawa, A. IkedaT. Inagaki, T. Ishida, T. Ishii, M. Ishitsuka, Y. Itow, T. Iwashita, H. I. Jang, J. S. Jang, E. J. Jeon, K. K. Joo, C. K. Jung, T. Kajita, J. Kameda, K. Kaneyuki, I. Kato, E. Kearns, A. Kibayashi, D. Kielczewska, B. J. Kim, C. O. Kim, J. Y. Kim, S. B. Kim, K. Kobayashi, T. Kobayashi, Y. Koshio, W. R. Kropp, J. G. Learned, S. H. Lim, I. T. Lim, H. Maesaka

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Abstract

Neutral current single π0 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 π0s from a water target is measured with high statistics for the first time.

Original languageEnglish (US)
Pages (from-to)255-262
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume619
Issue number3-4
DOIs
StatePublished - Jul 21 2005

Bibliographical note

Funding Information:
We thank the KEK and ICRR Directorates for their strong support and encouragement. K2K is made possible by the inventiveness and the diligent efforts of the KEK-PS machine and beam channel groups. We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. This work has been supported by the Ministry of Education, Culture, Sports, Science and Technology, Government of Japan and its grants for Scientific Research, the Japan Society for Promotion of Science, the US Department of Energy, the Korea Research Foundation, the Korea Science and Engineering Foundation, the CHEP in Korea, and Polish KBN grant 1P03B03826 and 1P03B08227.

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