OBSERVATION OF B-]PSI-PI DECAYS

被引：18

作者：

ALEXANDER, JP

BEBEK, C

BERKELMAN, K

BLOOM, K

BROWDER, TE

CASSEL, DG

CHO, HA

COFFMAN, DM

CROWCROFT, DS

DRELL, PS

DUMAS, D

EHRLICH, R

GAIDAREV, P

GARCIASCIVERES, M

GEISER, B

GITTELMAN, B

GRAY, SW

HARTILL, DL

HELTSLEY, BK

HENDERSON, S

JONES, CD

JONES, SL

KANDASWAMY, J

KATAYAMA, N

KIM, PC

KREINICK, DL

LUDWIG, GS

MASUI, J

MEVISSEN, J

MISTRY, NB

NG, CR

NORDBERG, E

PATTERSON, JR

PETERSON, D

RILEY, D

SALMAN, S

SAPPER, M

WURTHWEIN, F

AVERY, P

FREYBERGER, A

RODRIGUEZ, J

YANG, S

YELTON, J

CINABRO, D

LIU, T

SAULNIER, M

WILSON, R

YAMAMOTO, H

BERGFELD, T

EISENSTEIN, BI

机构：

[1] UNIV FLORIDA,GAINESVILLE,FL 32611

[2] HARVARD UNIV,CAMBRIDGE,MA 02138

[3] UNIV ILLINOIS,URBANA,IL 61801

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

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

[6] UNIV KANSAS,LAWRENCE,KS 66045

[7] ITHACA COLL,ITHACA,NY 14850

[8] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[9] SUNY ALBANY,ALBANY,NY 12222

[10] OHIO STATE UNIV,COLUMBUS,OH 43210

[11] UNIV OKLAHOMA,NORMAN,OK 73019

[12] PURDUE UNIV,W LAFAYETTE,IN 47907

[13] UNIV ROCHESTER,ROCHESTER,NY 14627

[14] SO METHODIST UNIV,DALLAS,TX 75275

[15] SYRACUSE UNIV,SYRACUSE,NY 13244

[16] VANDERBILT UNIV,NASHVILLE,TN 37235

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

[18] CALTECH,PASADENA,CA 91125

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

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

[21] UNIV COLORADO,BOULDER,CO 80309

[22] UNIV HAWAII MANOA,HONOLULU,HI 96822

[23] INP,NOVOSIBIRSK,RUSSIA

来源：

PHYSICS LETTERS B | 1995年 / 341卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)01481-Q

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have found the first evidence for the Cabibbo suppressed, color suppressed decay B- --> psi pi(-) in a data sample of 4 million B decays obtained by the CLEO detector at the Cornell Electron Storage Ring (CESR). The branching ratio is found to be (4.3 +/- 2.3)% of the Cabibbo allowed B- --> psi K- decay mode, which is consistent with theoretical expectations.

引用

页码：435 / 440

页数：6

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