Search for B→τν and B→Kν(ν)over-bar

被引：0

作者：

Browder, TE ^{[1
]}

Li, Y

Rodriguez, JL

Yamamoto, H

Bergfeld, T

Eisenstein, BI

Ernst, J

Gladding, GE

Gollin, GD

Hans, RM

Johnson, E

Karliner, I

Marsh, MA

Palmer, M

Plager, C

Sedlack, C

Selen, M

Thaler, JJ

Williams, J

Edwards, KW

Janicek, R

Patel, PM

Sadoff, AJ

Ammar, R

Bean, A

Besson, D

Davis, R

Kwak, N

Zhao, X

Anderson, S

Frolov, VV

Kubota, Y

Lee, SJ

Mahapatra, R

O'Neill, JJ

Poling, R

Riehle, T

Smith, A

Stepaniak, CJ

Urheim, J

Ahmed, S

Alam, MS

Athar, SB

Jian, L

Ling, L

Saleem, M

Timm, S

Wappler, F

Anastassov, A

Duboscq, JE

机构：

[1] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[2] Univ Hawaii Manoa, Honolulu, HI 96822 USA

[3] Univ Illinois, Urbana, IL 61801 USA

[4] Carleton Univ, Ottawa, ON K1S 5B6, Canada

[5] Inst Particle Phys, Ottawa, ON, Canada

[6] McGill Univ, Montreal, PQ H3A 2T8, Canada

[7] Ithaca Coll, Ithaca, NY 14850 USA

[8] Univ Kansas, Lawrence, KS 66045 USA

[9] Univ Minnesota, Minneapolis, MN 55455 USA

[10] SUNY Albany, Albany, NY 12222 USA

[11] Ohio State Univ, Columbus, OH 43210 USA

[12] Univ Oklahoma, Norman, OK 73019 USA

[13] Purdue Univ, W Lafayette, IN 47907 USA

[14] Univ Rochester, Rochester, NY 14627 USA

[15] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

[16] So Methodist Univ, Dallas, TX 75275 USA

[17] Syracuse Univ, Syracuse, NY 13244 USA

[18] Univ Texas, Austin, TX 78712 USA

[19] Univ Texas Pan Amer, Edinburg, TX 78539 USA

[20] Vanderbilt Univ, Nashville, TN 37235 USA

[21] Wayne State Univ, Detroit, MI 48202 USA

[22] CALTECH, Pasadena, CA 91125 USA

[23] Univ Calif San Diego, La Jolla, CA 92093 USA

[24] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[25] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[26] Univ Colorado, Boulder, CO 80309 USA

[27] Cornell Univ, Ithaca, NY 14853 USA

[28] Univ Florida, Gainesville, FL 32611 USA

[29] Harvard Univ, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.2950

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report results of a search for B --> tau nu in a sample of 9.7 x 10(6) charged B meson decays. We exclusively reconstruct the companion B decay to suppress background. We set an upper limit on the branching fraction B(B --> tau nu) < 8.4 X 10(-4) at 90% confidence level, We also establish B(B+/- --> K+/- nu <(nu )over bar >) < 2.4 X 10(-4) at 90% confidence level.

引用

页码：2950 / 2954

页数：5

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