Study of exclusive radiative B meson decays

被引：158

作者：

Coan, TE ^{[1
]}

Fadeyev, V

Maravin, Y

Narsky, I

Stroynowski, R

Ye, J

Wlodek, T

Artuso, M

Ayad, R

Boulahouache, C

Bukin, K

Dambasuren, E

Karamov, S

Kopp, S

Majumder, G

Moneti, GC

Mountain, R

Schuh, S

Skwarnicki, T

Stone, S

Viehhauser, G

Wang, JC

Wolf, A

Wu, J

Csorna, SE

Danko, I

McLean, KW

Márka, S

Xu, Z

Godang, R

Kinoshita, K

Lai, IC

Schrenk, S

Bonvicini, G

Cinabro, D

Perera, LP

Zhou, GJ

Eigen, G

Lipeles, E

Schmidtler, M

Shapiro, A

Sun, WM

Weinstein, AJ

Würthwein, F

Jaffe, DE

Masek, G

Paar, HP

Potter, EM

Prell, S

Sharma, V

机构：

[1] So Methodist Univ, Dallas, TX 75725 USA

[2] Syracuse Univ, Syracuse, NY 13244 USA

[3] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

[6] CALTECH, Pasadena, CA 91125 USA

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

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

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

[10] Univ Colorado, Boulder, CO 80309 USA

[11] Cornell Univ, Ithaca, NY 14853 USA

[12] Univ Florida, Gainesville, FL 32611 USA

[13] Harvard Univ, Cambridge, MA 02138 USA

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

[15] Univ Illinois, Urbana, IL 61801 USA

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

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

[18] Ithaca Coll, Ithaca, NY 14850 USA

[19] Univ Kansas, Lawrence, KS 66045 USA

[20] Univ Minnesota, Minneapolis, MN 55455 USA

[21] SUNY Albany, Albany, NY 12222 USA

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

[23] Univ Oklahoma, Norman, OK 73019 USA

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

[25] Univ Rochester, Rochester, NY 14627 USA

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

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.84.5283

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied exclusive, radiative B meson decays to charmless mesons in 9.7 X 10(6) B (B) over bar decays accumulated with the CLEO detector. We measure B(B-0 --> K*(0)(892)gamma) = (4.55(-0.68)(+0.72) +/- 0.34) X 10(-5) and B(B+ --> K*(+)(892)gamma) = (3.76(-0.83)(+0.89) +/- 0.28) X 10(-5). We have searched for CP asymmetry in B --> K*(892)gamma decays and measure A(CP) = + 0.08 +/- 0.13 +/- 0.03. We report the first observation of B --> K-2*(1430)gamma decays with a branching fraction of (1.66(-0.53)(+0.59) +/- 0.13) x 10(-5). No evidence for the decays B --> rho gamma and B-0 --> omega gamma is found and we limit B(B --> (rho/omega)gamma)/B(B --> K*(892)gamma) < 0.32 at 90% C.L.

引用

页码：5283 / 5287

页数：5

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