Measurement of the Flux and Zenith-Angle Distribution of Upward Throughgoing Muons by Super-Kamiokande

Y Fukuda,T Hayakawa,E Ichihara,K Inoue,K Ishihara,H Ishino,Y Itow,T Kajita,J Kameda,S Kasuga,K Kobayashi,Y Kobayashi,Y Koshio,M Miura,M Nakahata,S Nakayama,A Okada,K Okumura,N Sakurai,M Shiozawa,Y Suzuki,Y Takeuchi,Y Totsuka,S Yamada,M Earl,A Habig,E Kearns,MD Messier,K Scholberg,JL Stone,LR Sulak,CW Walter,M Goldhaber,T Barszczak,D Casper,W Gajewski,WR Kropp,LR Price,F Reines,M Smy,HW Sobel,MR Vagins,KS Ganezer,WE Keig,RW Ellsworth,S Tasaka,JW Flanagan,A Kibayashi,JG Learned,S Matsuno,VJ Stenger,D Takemori, T Ishii,J Kanzaki,T Kobayashi,S Mine,K Nakamura,K Nishikawa,Y Oyama,A Sakai,M Sakuda,O Sasaki,S Echigo,M Kohama,AT Suzuki,TJ Haines,E Blaufuss,BK Kim,R Sanford,R Svoboda,ML Chen,JA Goodman,GW Sullivan,J Hill,CK Jung,K Martens,C Mauger,C McGrew,E Sharkey,B Viren,C Yanagisawa,W Doki,K Miyano,H Okazawa,C Saji,M Takahata,Y Nagashima,M Takita,T Yamaguchi,M Yoshida,SB Kim,M Etoh,K Fujita,A Hasegawa,T Hasegawa,S Hatakeyama,T Iwamoto, M Koga,T Maruyama,H Ogawa,J Shirai,A Suzuki,F Tsushima,M Koshiba,M Nemoto,K Nishijima,T Futagami,Y Hayato,Y Kanaya,K Kaneyuki,Y Watanabe,D Kielczewska,RA Doyle,JS George,AL Stachyra,LL Wai,RJ Wilkes,KK Young

Physical review letters（1999）

引用 839|浏览37

暂无评分

摘要

A total of 614 upward throughgoing muons of minimum energy 1.6 GeV are observed by Super-Kamiokande during 537 detector live days. The measured muon flux is [1.74 +/- 0.07(stat) +/- 0.02(sys)] x 10(-13) cm(-2) s(-1) sr(-1) compared to an expected flux of [1.97 +/- 0.44(theor)] x 10(-13) cm(-2) s(-1) sr(-1). The absolute measured flux is in agreement with the prediction within the errors. However, the zenith-angle dependence of the observed upward throughgoing muon flux does not agree with no-oscillation predictions. The observed distortion in shape is consistent with the nu(mu) <-> nu(tau) oscillation hypothesis with sin(2) 2 theta > 0.4 and 1 x 10(-3) < Delta m(2) < 1 x 10(-1) eV(2) at 90% confidence level. [S0031-9007(99)08762-1].

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要