Measurement of the decay amplitudes and branching fractions of B->J/psi K-* and B->J/psi K decays

被引：61

作者：

Jessop, CP

Lingel, K

Marsiske, H

Perl, ML

Schaffner, SF

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

Artuso, M

Efimov, A

Frasconi, F

Gao, M

Goldberg, M

He, D

Kopp, S

Moneti, GC

Mountain, R

Mukhin, Y

Schuh, S

Skwarnicki, T

Stone, S

Viehhauser, G

Xing, X

Bartelt, J

Csorna, SE

Jain, V

Marka, S

Freyberger, A

Godang, R

Kinoshita, K

Lai, IC

Pomianowski, P

Schrenk, S

Bonvicini, G

Cinabro, D

Greene, R

Perera, LP

Barish, B

Chadha, M

Chan, S

机构：

[1] SO METHODIST UNIV,DALLAS,TX 75275

[2] SYRACUSE UNIV,SYRACUSE,NY 13244

[3] VANDERBILT UNIV,NASHVILLE,TN 37235

[4] VIRGINIA POLYTECH INST & STATE UNIV,BLACKSBURG,VA 24061

[5] WAYNE STATE UNIV,DETROIT,MI 48202

[6] CALTECH,PASADENA,CA 91125

[7] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

[8] UNIV CALIF SANTA BARBARA,SANTA BARBARA,CA 93106

[9] UNIV COLORADO,BOULDER,CO 80309

[10] CORNELL UNIV,ITHACA,NY 14853

[11] UNIV FLORIDA,GAINESVILLE,FL 32611

[12] HARVARD UNIV,CAMBRIDGE,MA 02138

[13] UNIV HAWAII MANOA,HONOLULU,HI 96822

[14] UNIV ILLINOIS,CHAMPAIGN,IL 61801

[15] CARLETON UNIV,OTTAWA,ON K1S 5B6,CANADA

[16] MCGILL UNIV,MONTREAL,PQ H3A 2T8,CANADA

[17] ITHACA COLL,ITHACA,NY 14850

[18] UNIV KANSAS,LAWRENCE,KS 66045

[19] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[20] SUNY ALBANY,ALBANY,NY 12222

[21] OHIO STATE UNIV,COLUMBUS,OH 43210

[22] UNIV OKLAHOMA,NORMAN,OK 73019

[23] PURDUE UNIV,W LAFAYETTE,IN 47907

[24] PURDUE UNIV,W LAFAYETTE,IN 47907

[25] UNIV ROCHESTER,ROCHESTER,NY 14627

[26] UNIV TEXAS,AUSTIN,TX 78712

[27] BINP,RU-630090 NOVOSIBIRSK,RUSSIA

[28] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.79.4533

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we present the first full angular analysis in the color-suppressed modes B-0 --> J/psi K*(0) and B+ --> J/psi K*(+). This leads to a complete determination of the decay amplitudes of these modes including the longitudinal polarization Gamma(L)/Gamma = 0.52 +/- 0.07 +/- 0.04 and the P wave component \P\(2) = 0.16 +/- 0.08 +/- 0.04. In addition, we update the branching fractions for B --> J/psi K and B --> J/psi K*.

引用

页码：4533 / 4537

页数：5

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