Flavor-specific inclusive B decays to charm

被引：68

作者：

Coan, TE ^{[1
]}

Fadeyev, V

Korolkov, I

Maravin, Y

Narsky, I

Shelkov, V

Staeck, J

Stroynowski, R

Volobouev, I

Ye, J

Artuso, M

Azfar, F

Efimov, A

Goldberg, M

He, D

Kopp, S

Moneti, GC

Mountain, R

Schuh, S

Skwarnicki, T

Stone, S

Viehhauser, G

Xing, X

Bartelt, J

Csorna, SE

Jain, V

McLean, KW

Marka, S

Godang, R

Kinoshita, K

Lai, IC

Pomianowski, P

Schrenk, S

Bonvicini, G

Cinabro, D

Greene, R

Perera, LP

Zhou, GJ

Barish, B

Chadha, M

Chan, S

Eigen, G

Miller, JS

O'Grady, C

Schmidtler, M

Urheim, J

Weinstein, AJ

Wurthwein, F

Bliss, DW

Masek, G

机构：

[1] So Methodist Univ, Dallas, TX 75275 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] Univ Colorado, Boulder, CO 80309 USA

[10] Cornell Univ, Ithaca, NY 14853 USA

[11] Univ Florida, Gainesville, FL 32611 USA

[12] Harvard Univ, Cambridge, MA 02138 USA

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

[14] Univ Illinois, Urbana, IL 61801 USA

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

[16] Inst Particle Phys, Montreal, PQ, 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 | 1998年 / 80卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.80.1150

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the branching fractions for B --> (D) over bar X, B --> DX, and B --> (D) over bar Xl(+)v. From these results and some previously measured branching fractions, we obtain B(b --> c (c) over bar s) = (21.9 +/- 3.7)%, B(b --> sg) < 6.8% at 90% C.L., and B(D-0 --> K- pi(+)) = (3.69 +/- 0.20)%. implications for the "B semileptonic decay problem" (measured branching fraction being below theoretical expectations) are discussed. With the increase in the value of B(b --> c (c) over bar s) due to B --> DX, the discrepancy is no longer statistically compelling. [S0031-9007(97)05231-9].

引用

页码：1150 / 1155

页数：6

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