Large-scale anisotropy of the cosmic-ray muon flux in Kamiokande

被引:43
作者
Munakata, K
Kiuchi, T
Yasue, S
Kato, C
Mori, S
Hirata, KS
Kihara, K
Oyama, Y
Mori, M
Fujita, K
Hatakeyama, S
Koga, M
Maruyama, T
Suzuki, A
Ishizuka, T
Miyano, K
Okazawa, H
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
Horiuchi, T
Nishijima, K
Koshiba, M
Suda, T
Suzuki, AT
Hara, T
Nagashima, Y
Takita, M
Yamaguchi, T
Hayato, Y
Kaneyuki, K
Suzuki, T
Takeuchi, Y
机构
[1] NATL LAB HIGH ENERGY PHYS,IBARAKI,OSAKA 305,JAPAN
[2] MIYAGI UNIV EDUC,DEPT PHYS,MIYAGI 980,JAPAN
[3] TOHOKU UNIV,FAC SCI,MIYAGI 980,JAPAN
[4] NIIGATA UNIV,DEPT PHYS,NIIGATA 95021,JAPAN
[5] UNIV TOKYO,INST COSM RAY RES,TOKYO 188,JAPAN
[6] TOKAI UNIV,DEPT PHYS,KANAGAWA 25912,JAPAN
[7] TOKAI UNIV,INST RES & DEV,TOKYO 151,JAPAN
[8] KOBE UNIV,DEPT PHYS,KOBE,HYOGO 657,JAPAN
[9] OSAKA UNIV,DEPT PHYS,OSAKA 560,JAPAN
[10] TOKYO INST TECHNOL,DEPT PHYS,TOKYO 152,JAPAN
[11] GIFU UNIV,DEPT PHYS,GIFU 50111,JAPAN
[12] UNIV TOKYO,INST NUCL STUDY,TOKYO 188,JAPAN
来源
PHYSICAL REVIEW D | 1997年 / 56卷 / 01期
关键词
D O I
10.1103/PhysRevD.56.23
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The large-scale anisotropy of cosmic-ray primaries in the celestial coordinate was studied using cosmic-ray muons recorded in a large water Cherenkov detector, Kamiokande. The right-ascension distribution of the muon arrival directions deviated from an isotropic distribution with a 2.8 standard deviation, and agreed well with the first harmonics with an amplitude of (5.6 +/- 1.9) x 10(-4) and a phase of 8.0 degrees +/- 19.1 degrees. This is the deepest underground observation of the large-scale anisotropy of cosmic rays, and agrees with observations with other underground experiments and extensive air-shower array experiments.
引用
收藏
页码:23 / 26
页数:4
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