Observation of exclusive two-body B decays to kaons and pions

被引：74

作者：

Godang, R ^{[1
]}

Kinoshita, K

Lai, IC

Pomianowski, P

Schrenk, S

Bonvicini, G

Cinabro, D

Greene, R

Perera, LP

Zhou, GJ

Chadha, M

Chan, S

Eigen, G

Miller, JS

O'Grady, C

Schmidtler, M

Urheim, J

Weinstein, AJ

Wurthwein, F

Bliss, DW

Masek, G

Paar, HP

Prell, S

Sharma, V

Asner, DM

Gronberg, J

Hill, TS

Lange, DJ

Morrison, RJ

Nelson, HN

Nelson, TK

Roberts, D

Ryd, A

Balest, R

Behrens, BH

Ford, WT

Gritsan, A

Park, H

Roy, J

Smith, JG

Alexander, JP

Baker, R

Bebek, C

Berger, BE

Berkelman, K

Bloom, K

Boisvert, V

Cassel, DG

Crowcroft, DS

Dickson, M

机构：

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

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

[3] CALTECH, Pasadena, CA 91125 USA

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

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

[6] Univ Colorado, Boulder, CO 80309 USA

[7] Cornell Univ, Ithaca, NY 14853 USA

[8] Univ Florida, Gainesville, FL 32611 USA

[9] Harvard Univ, Cambridge, MA 02138 USA

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

[11] Univ Illinois, Urbana, IL 61801 USA

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

[13] Inst Particle Phys, Montreal, PQ, Canada

[14] McGill Univ, Montreal, PQ, Canada

[15] Ithaca Coll, Ithaca, NY 14850 USA

[16] Univ Kansas, Lawrence, KS 66045 USA

[17] Univ Minnesota, Minneapolis, MN 55455 USA

[18] SUNY Albany, Albany, NY 12222 USA

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

[20] Univ Oklahoma, Norman, OK 73019 USA

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

[22] Univ Rochester, Rochester, NY 14627 USA

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

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

[25] Syracuse Univ, Syracuse, NY 13244 USA

[26] Vanderbilt Univ, Nashville, TN 37235 USA

[27] Univ Texas, Austin, TX 78712 USA

[28] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[29] BINP, RU-630090 Novosibirsk, Russia

[30] Yonsei Univ, Seoul 120749, South Korea

[31] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.80.3456

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied two-body charmless hadronic decays of B mesons into the final states pi pi, K pi and KK. Using 3.3 x 10(6) B (B) over bar pairs collected with the CLEO-II detector, we have made the first observation of the decay B-0 --> K(+)pi(-), the sum of B+ --> pi(+)pi(0) and B+ --> K(+)pi(0) decays, and see strong evidence for the decay B+ --> K-0 pi(+) (an average over charge-conjugate states is always implied). We place upper limits on branching fractions for the remaining decay modes.

引用

页码：3456 / 3460

页数：5

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