Kinematic reconstruction of atmospheric neutrino events in a large water Cherenkov detector with proton identification

@inproceedings{Fechner2009KinematicRO,
  title={Kinematic reconstruction of atmospheric neutrino events in a large water Cherenkov detector with proton identification},
  author={Maximilien Fechner and Ke. Abe and Yoshinari Hayato and Takuma Iida and Masafumi Ikeda and Jun Kameda and Kobayashi Kensuke and Yusuke Koshio and Makoto Miura and Shigetaka Moriyama and Masayuki Nakahata and Shinsaku Nakayama and Yoshiki Obayashi and Hirotsugu Ogawa and Hiroyuki Sekiya and Manabu Shiozawa and Yoshitaka Suzuki and Atsushi Takeda and Yumiko Takenaga and Yasushi Tak{\'e}uchi and Keiji Ueno and Keiji Ueshima and Hiroshi Watanabe and Shoichi Yamada and Sumiaki Hazama and Isao Higuchi and Chiaki Ishihara and Takaaki Kajita and Kazutoshi Kaneyuki and Gaku Mitsuka and Hisakazu Nishino and Kimihiro Okumura and N. Tanimoto and Mark Robert Vagins and Franccois Dufour and Edward Kearns and Michael Litos and Jennifer Lynne Raaf and Jennifer L Stone and Lawrence Sulak and Wei Wang and Maurice Goldhaber and Steven Dazeley and Radomir Svoboda and Kyle D. Bayes and David William Casper and J. P. Cravens and William Kropp and Shun'ichi Mine and Christopher Regis and Michael Burghard Smy and Henry W. Sobel and Kenneth Samuel Ganezer and James C. Hill and William E. Keig and J. S. Jang and Jae Yool Kim and In Lim and Kate Scholberg and Christopher William Walter and Roger A. Wendell and Sadataka Tasaka and John G. Learned and Satsuki Matsuno and Y Watanabe and Takeshi Hasegawa and Takao Ishida and Tomoyuki Ishii and Tetsuo Kobayashi and Takeshi Nakadaira and Kotaro Nakamura and Kousuke Nishikawa and Yoshiki Oyama and Kazuki Sakashita and Tetsuhiro Sekiguchi and Toshiaki Tsukamoto and A. T. Suzuki and Akihiro Minamino and Tsuyoshi Nakaya and Misako Yokoyama and Y. Fukuda and Yoshitaka Itow and Tetsuya S. Tanaka and Chang Kee Jung and G. D. Lopez and C. Mcgrew and Ryan Terri and Chisato Yanagisawa and Naoya Tamura and Yuichi Idehara and Makoto Sakuda and Yoshitaka Kuno and Masahiro Yoshida and Sun Bae Kim and B. S. Yang and Takeharu Ishizuka and Hiromu Okazawa and Youl Ki Choi and Hyunkwan Seo and Yusuke Furuse and K. Nishijima and Yuya Yokosawa and Masatoshi Koshiba and Yuya Totsuka and Shaofan Chen and Yuekun Heng and Zhanmin Yang and Hong-hao Zhang and D. Kielczewska and Eric Thrane and R. Jeffrey Wilkes},
  year={2009}
}
We report the development of a proton identification method for the Super-Kamiokande (SK) detector. This new tool is applied to the search for events with a single proton track, a high purity neutral current sample of interest for sterile neutrino searches. After selection using a neural network, we observe 38 events in the combined SK-I and SK-II data corresponding to 22 85.1 days of exposure, with an estimated signal-to-background ratio of 1.6 to 1. Proton identification was also applied to a… CONTINUE READING