Search for lepton-flavor-violating decays of the neutral kaon

被引：30

作者：

Abouzaid, E. ^{[5
]}

Arenton, M. ^{[11
,12
]}

Barker, A. R. ^{[6
]}

Bellantoni, L. ^{[8
]}

Bellavance, A. ^{[1
]}

Blucher, E. ^{[5
]}

Bock, G. J. ^{[8
]}

Cheu, E. ^{[2
]}

Coleman, R. ^{[8
]}

Corcoran, M. D. ^{[1
]}

Cox, B. ^{[11
,12
]}

Erwin, A. R. ^{[13
]}

Escobar, C. O. ^{[4
]}

Glazov, A. ^{[5
]}

Golossanov, A. ^{[11
,12
]}

Gomes, R. A. ^{[4
]}

Gouffon, P. ^{[10
]}

Hsiung, Y. B. ^{[8
]}

Jensen, D. A.

Kessler, R. ^{[5
]}

Kotera, K. ^{[9
]}

Ledovskoy, A. ^{[11
,12
]}

McBride, P. L. ^{[8
]}

Monnier, E. ^{[5
,14
]}

Nguyen, H. ^{[8
]}

Niclasen, R. ^{[6
]}

Phillips, D. G., II ^{[11
,12
]}

Ping, H. ^{[13
]}

Ramberg, E. J. ^{[8
]}

Ray, R. E. ^{[8
]}

Ronquest, M. ^{[11
,12
]}

Santos, E. ^{[10
]}

Slater, W. ^{[3
]}

Smith, D. ^{[11
,12
]}

Solomey, N. ^{[5
]}

Swallow, E. C. ^{[5
,7
]}

Toale, P. A. ^{[6
]}

Tschirhart, R. ^{[8
]}

Wah, Y. W. ^{[5
]}

Wang, J. ^{[2
]}

White, H. B. ^{[8
]}

Whitmore, J. ^{[8
]}

Wilking, M. J. ^{[6
]}

Winstein, B.

Winston, R. ^{[5
]}

Wolfe, C. ^{[1
]}

Worcester, E. T. ^{[5
]}

Worcester, M. ^{[5
]}

Yamanaka, T. ^{[9
]}

Zimmerman, E. D. ^{[6
]}

机构：

[1] Rice Univ, Houston, TX 77005 USA

[2] Univ Arizona, Tucson, AZ 85721 USA

[3] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[4] Univ Estadual Campinas, BR-13083970 Campinas, SP, Brazil

[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[6] Univ Colorado, Boulder, CO 80309 USA

[7] Elmhurst Coll, Elmhurst, IL 60126 USA

[8] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[9] Osaka Univ, Osaka 5600043, Japan

[10] Univ Sao Paulo, BR-05315970 Sao Paulo, Brazil

[11] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA

[12] Univ Virginia, Inst Nucl & Particle Phys, Charlottesville, VA 22901 USA

[13] Univ Wisconsin, Madison, WI 53706 USA

[14] CNRS, CPP Marseille, F-75700 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.100.131803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Fermilab KTeV experiment has searched for lepton-flavor-violating decays of the K-L meson in three decay modes. We observe no events in the signal region for any of the modes studied, and we set the following upper limits for their branching ratios at the 90% C.L.: BR(K-L ->pi(0)mu(+/-)e(-/+))< 7.6x10(-11); BR(K-L ->pi(0)pi(0)mu(+/-)e(-/+))< 1.7x10(-10); BR(pi(0)->mu(+/-)e(-/+))< 3.6x10(-10). This result represents a factor of 82 improvement in the branching ratio limit for K-L ->pi(0)mu(+/-)e(-/+) and is the first reported limit for K-L ->pi(0)pi(0)mu(+/-)e(-/+).

引用

页数：5

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