Search For Nucleon Decay Via N -> (Nu)Over-Bar Pi(0) And P -> (Nu)Over-Bar Pi(+) In Super-Kamiokande Koichiro Abe , Y Hayato , Tsutomu Iida , K Iyogi , J Kameda , Y Koshio , Y Kozuma , Ll Marti , Motohiko Miura , S Moriyama , M Nakahata , Satoshi Nakayama , Y Obayashi , Hiroo Sekiya , M Shiozawa , Yoshiyuki Suzuki , Atsushi Takeda , Y Takenaga , Kazuya Ueno , K Ueshima , Sumio Yamada , Takako Yokozawa , C Ishihara , H Kaji , T Kajita , K Kaneyuki , K P Lee , T Mclachlan , Ko Okumura , Youichi Shimizu , N Tanimoto , E Kearns , M Litos , J L Raaf , J L Stone , L Sulak , Martin B Goldhaber , K Bays , W R Kropp , S Mine , C Regis , A Renshaw , M B Smy , H W Sobel , K S Ganezer , J C Hill , W E Keig , Jum Suk Jang , Jin Young Kim , I T Lim , J Albert , K Scholberg , C W Walter , R Wendell , T Wongjirad , Takehiro Ishizuka , Shuji Tasaka , J G Learned , S Matsuno , S N Smith , Takaaki Hasegawa , Toshihiko Ishida , Tomoya Ishii , T Kobayashi , T Nakadaira , Koji Nakamura , K Nishikawa , Yasuo Oyama , K Sakashita , T Sekiguchi , Toshiro Tsukamoto , A Suzuki , Y Takeuchi , Masaaki Ikeda , A Minamino , T Nakaya , Yasuo Fukuda , Y Itow , G Mitsuka , Tetsuya Tanaka , C K Jung , G Lopez , I J Taylor , C Yanagisawa , H Ishino , A Kibayashi , S Mino , Tetsuo Mori , M Sakuda , H Toyota , Y Kuno , Michihiro C Yoshida , S B Kim , B S Yang , H Okazawa , Y Choi , K Nishijima , Masanori Koshiba PHYSICAL REVIEW LETTERS（2014）
摘要
We present the results of searches for nucleon decay via n --> (nu) over bar pi(0) and p --> (nu) over bar pi(+) using data froma combined 172.8 kt. yr exposure of Super-Kamiokande-I,-II, and-III. We set lower limits on the partial lifetime for each of these modes: tau(n-->(nu) over bar pi 0) > 1.1 x 10(33) years and tau(p-->(nu) over bar pi+) > 3.9 x 10(32) years at a 90% confidence level.
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