Tau neutrinos favored over sterile neutrinos in atmospheric muon neutrino oscillations

被引：718

作者：

Fukuda, S

Fukuda, Y

Ishitsuka, M

Itow, Y

Kajita, T

Kameda, J

Kaneyuki, K

Kobayashi, K

Koshio, Y

Miura, M

Moriyama, S

Nakahata, M

Nakayama, S

Obayashi, Y

Okada, A

Okumura, K

Sakurai, N

Shiozawa, M

Suzuki, Y

Takeuchi, H

Takeuchi, Y

Toshito, T

Totsuka, Y

Yamada, S

Earl, M

Habig, A ^{[1
]}

Kearns, E

Messier, MD

Scholberg, K

Stone, JL

Sulak, LR

Walter, CW

Goldhaber, M

Barszczak, T

Casper, D

Gajewski, W

Kropp, WR

Mine, S

Price, LR

Smy, M

Sobel, HW

Vagins, MR

Ganezer, KS

Keig, WE

Ellsworth, RW

Tasaka, S

Kibayashi, A

Learned, JG

Matsuno, S

Takemori, D

机构：

[1] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[2] Boston Univ, Dept Phys, Boston, MA 02215 USA

[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[4] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[5] Calif State Univ Dominguez Hills, Dept Phys, Carson, CA 90747 USA

[6] George Mason Univ, Dept Phys, Fairfax, VA 22030 USA

[7] Gifu Univ, Dept Phys, Gifu 5011193, Japan

[8] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA

[9] KEK, Inst Particle & Nucl Studies, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[10] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

[11] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

[12] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87544 USA

[13] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[14] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[15] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[16] Niigata Univ, Dept Phys, Niigata 9502181, Japan

[17] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan

[18] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea

[19] Shizuoka Univ, Dept Syst Engn, Hamamatsu, Shizuoka 4328561, Japan

[20] Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan

[21] Univ Tokyo, Tokyo 1130033, Japan

[22] Tokai Univ, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan

[23] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

[24] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

[25] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.85.3999

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The previously published atmospheric neutrino data did not distinguish whether muon neutrinos were oscillating into tau neutrinos or sterile neutrinos, as both hypotheses fit the data. Using data recorded in 1100 live days of the Super-Kamiokande detector, we use three complementary data samples to study the difference in zenith angle distribution due to neutral currents and matter effects. We find no evidence favoring sterile neutrinos, and reject the hypothesis at the 99% confidence level. On the other hand, we find that oscillation between muon and tan neutrinos suffices to explain all the results in hand.

引用

页码：3999 / 4003

页数：5

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