Search for proton decay through p → (ν)over-barK+ in a large water Cherenkov detector

被引：112

作者：

Hayato, Y ^{[1
]}

Earl, M

Fukuda, Y

Hayakawa, T

Inoue, K

Ishihara, K

Ishino, H

Itow, Y

Kajita, T

Kameda, J

Kasuga, S

Kobayashi, K

Kobayashi, Y

Koshio, Y

Miura, M

Nakahata, M

Nakayama, S

Obayashi, Y

Okada, A

Okumura, K

Sakurai, N

Shiozawa, M

Suzuki, Y

Takeuchi, K

Takeuchi, Y

Totsuka, Y

Yamada, S

Habig, A

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

机构：

[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[2] Univ Tokyo, Inst Cosm Ray Res, Tanashi, Tokyo 1888502, Japan

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

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

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

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

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

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

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

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

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

[12] Univ Calif 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] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[20] Univ Tokyo, Tokyo 1130033, Japan

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

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

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

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.83.1529

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present results of a search for proton decays, p --> <(nu)over bar>K+, using data from a 33 kt . yr exposure of the Super-Kamiokande detector. Two decay modes of the kaon, K+ --> mu(+)nu(mu) and K+ --> pi(+)pi(0), were studied. The data were consistent with the background expected from atmospheric neutrinos; therefore a lower limit on the partial lifetime of the proton tau/B(p --> <(nu)over bar>K+) was found to be 6.7 X 10(32) years at 90% confidence level.

引用

页码：1529 / 1533

页数：5

共 17 条

[1] Suggested new modes in supersymmetric proton decay [J].

Babu, KS ;

Pati, JC ;

Wilczek, F .

PHYSICS LETTERS B, 1998, 423 (3-4) :337-347

[2]

BARNETT RM, 1996, PHYS REV D, V54, P375

[3]

BARNETT RM, 1996, PHYS REV D, V54, P85

[4] NUCLEAR DEEXCITATIONS OF NUCLEON HOLES ASSOCIATED WITH NUCLEON DECAYS IN NUCLEI [J].

EJIRI, H .

PHYSICAL REVIEW C, 1993, 48 (03) :1442-1444

[5]

EJIRI H, COMMUNICATION

[6] A PHENOMENOLOGICAL COMPARISON OF CONVENTIONAL AND SUPERSYMMETRIC GUTS [J].

ELLIS, J ;

NANOPOULOS, DV ;

RUDAZ, S .

NUCLEAR PHYSICS B, 1982, 202 (01) :43-62

[7] Measurement of a small atmospheric νμ/νe ratio [J].

Fukuda, Y ;

Hayakawa, T ;

Ichihara, E ;

Inoue, K ;

Ishihara, K ;

Ishino, H ;

Itow, Y ;

Kajita, T ;

Kameda, J ;

Kasuga, S ;

Kobayashi, K ;

Kobayashi, Y ;

Koshio, Y ;

Martens, K ;

Miura, M ;

Nakahata, M ;

Nakayama, S ;

Okada, A ;

Oketa, M ;

Okumura, K ;

Ota, M ;

Sakurai, N ;

Shiozawa, M ;

Suzuki, Y ;

Takeuchi, Y ;

Totsuka, Y ;

Yamada, S ;

Earl, M ;

Habig, A ;

Hong, JT ;

Kearns, E ;

Kim, SB ;

Masuzawa, M ;

Messier, MD ;

Scholberg, K ;

Stone, JL ;

Sulak, LR ;

Walter, CW ;

Goldhaber, M ;

Barszczak, T ;

Gajewski, W ;

Halverson, PG ;

Hsu, J ;

Kropp, WR ;

Price, LR ;

Reines, F ;

Sobel, HW ;

Vagins, MR ;

Ganezer, KS ;

Keig, WE .

PHYSICS LETTERS B, 1998, 433 (1-2) :9-18

[8] UNITY OF ALL ELEMENTARY-PARTICLE FORCES [J].

GEORGI, H ;

GLASHOW, SL .

PHYSICAL REVIEW LETTERS, 1974, 32 (08) :438-441

[9]

GOTO T, HEPPH9808255

[10] EXPERIMENTAL LIMITS ON NUCLEON LIFETIME FOR LEPTON+MESON DECAY MODES [J].

HIRATA, KS ;

KAJITA, T ;

KIFUNE, T ;

KIHARA, K ;

NAKAHATA, M ;

NAKAMURA, K ;

OHARA, S ;

OYAMA, Y ;

SATO, N ;

TAKITA, M ;

TOTSUKA, Y ;

YAGINUMA, Y ;

MORI, M ;

SUZUKI, A ;

TAKAHASHI, K ;

TANIMORI, T ;

YAMADA, M ;

KOSHIBA, M ;

SUDA, T ;

MIYANO, K ;

MIYATA, H ;

TAKEI, H ;

KANEYUKI, K ;

NAGASHIMA, Y ;

SUZUKI, Y ;

BEIER, EW ;

FELDSCHER, LR ;

FRANK, ED ;

FRATI, W ;

KIM, SB ;

MANN, AK ;

NEWCOMER, FM ;

VANBERG, R ;

ZHANG, W .

PHYSICS LETTERS B, 1989, 220 (1-2) :308-316

← 1 2 →