MEASUREMENT OF THE FLUX AND ZENITH-ANGLE DISTRIBUTION OF UPWARD THROUGH-GOING MUONS IN KAMIOKANDE II+III

Authors
HATAKEYAMA S HARA T FUKUDA Y HAYAKAWA T INOUE K ISHIHARA K ISHINO H JOUKOU S KAJITA T KASUGA S KOSHIO Y KUMITA T MATSUMOTO K NAKAHATA M NAKAMURA K OKUMURA K SAKAI A SHIOZAWA M SUZUKI J SUZUKI Y TOMOEDA T TOTSUKA Y HIRATA KS KIHARA K OYAMA Y KOSHIBA M NISHIJIMA K HORIUCHI T FUJITA K KOGA M MARUYAMA T SUZUKI A MORI M SUDA T SUZUKI AT ISHIZUKA T MIYANO K OKAZAWA H NAGASHIMA Y TAKITA M YAMAGUCHI T HAYATO Y KANEYUKI K SUZUKI T TAKEUCHI Y TANIMORI T TASAKA S ICHIHARA E MIYAMOTO S NISHIKAWA K
Citation
S. Hatakeyama et al., MEASUREMENT OF THE FLUX AND ZENITH-ANGLE DISTRIBUTION OF UPWARD THROUGH-GOING MUONS IN KAMIOKANDE II+III, Physical review letters, 81(10), 1998, pp. 2016-2019
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
81
Issue
10
Year of publication
1998
Pages
2016 - 2019
Database
ISI
SICI code
0031-9007(1998)81:10<2016:MOTFAZ>2.0.ZU;2-8
Abstract
The flux of upward through-going muons of minimum (mean) threshold ene rgy >1.6 (3.0) GeV is measured, based on a total of 372 events observe d by the Kamiokande II + III detector during 2456 detector live days. The observed muon flux was Phi(obs) = [1.94 +/- 0.10(stat.)(-0.06)(+0. 07)sys.)] x 10(-13) cm(-2)s(-1) sr(-1), which is compared to an expect ed value of Phi(theo) = [2.46 +/- 0.54(theo.)] x 10(-13) cm(-2)s(-1) s r(-1). The observation is in agreement with the prediction within the errors. The zenith-angle dependence of the observed upward through-goi ng muons supports the previous indication of neutrino oscillations mad e by Kamiokande using sub- and multi-GeV atmospheric neutrino events.