Investigation of semileptonic B meson decays to p-wave charm mesons

被引：36

作者：

Anastassov, A ^{[1
]}

Duboscq, JE

Fujino, D

Gan, KK

Hart, T

Honscheid, K

Kagan, H

Kass, R

Lee, J

Spencer, MB

Sung, M

Undrus, A

Wanke, R

Wolf, A

Zoeller, MM

Nemati, B

Richichi, SJ

Ross, WR

Skubic, P

Bishai, M

Fast, J

Hinson, JW

Menon, N

Miller, DH

Shibata, EI

Shipsey, IPJ

Yurko, M

Glenn, S

Johnson, SD

Kwon, Y

Roberts, S

Thorndike, EH

Jessop, CP

Lingel, K

Marsiske, H

Perl, ML

Savinov, V

Ugolini, D

Wang, R

Zhou, X

Coan, TE

Fadeyev, V

Korolkov, I

Maravin, Y

Narsky, I

Shelkov, V

Staeck, J

Stroynowski, R

Volobouev, I

Ye, J

机构：

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

[2] Univ Oklahoma, Norman, OK 73019 USA

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

[4] Univ Rochester, Rochester, NY 14627 USA

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

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

[7] Syracuse Univ, Syracuse, NY 13244 USA

[8] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

[11] CALTECH, Pasadena, CA 91125 USA

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

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

[14] Univ Colorado, Boulder, CO 80309 USA

[15] Cornell Univ, Ithaca, NY 14853 USA

[16] Univ Florida, Gainesville, FL 32611 USA

[17] Harvard Univ, Cambridge, MA 02138 USA

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

[19] Univ Illinois, Champaign, IL 61801 USA

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

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

[22] Ithaca Coll, Ithaca, NY 14850 USA

[23] Univ Kansas, Lawrence, KS 66045 USA

[24] Univ Minnesota, Minneapolis, MN 55455 USA

[25] SUNY Albany, Albany, NY 12222 USA

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

[27] BINP, RU-630090 Novosibirsk, Russia

[28] Yonsei Univ, Seoul 120749, South Korea

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

[30] Univ Texas, Austin, TX 78712 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.80.4127

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied semileptonic B meson decays with a p-wave charm meson in the final state using 3.29 x 10(6) B (B) over bar events collected with the CLEO II detector at the Cornell Electron-Positron Storage Ring. We find a value for the exclusive semileptonic product branching fraction B(B- --> D(1)(0)l(-) <(nu)over bar>(l))B(D-1(0)-->D(*+)pi(-) )= (0.373 +/- 0.085 +/- 0.052 +/- 0.024)% and an upper limit for B(B- --> D(2)(*0)l(-)<(nu)over bar>)(l))B(D2O --> D*+ pi(-)) < 0.16% (90% C.L.). Furthermore, we present the first measurement of the q(2) spectrum for B- --> D(1)(0)l(-)<(nu)over bar>(l).

引用

页码：4127 / 4131

页数：5

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