OBSERVATION OF GAMMA-(4S) DECAYS INTO NON-BBBAR FINAL-STATES CONTAINING PSI-MESONS

被引：22

作者：

ALEXANDER, J

ARTUSO, M

BEBEK, C

BERKELMAN, K

CASSEL, DG

CHEU, E

COFFMAN, DM

CRAWFORD, G

DEWIRE, JW

DRELL, PS

EHRLICH, R

GALIK, RS

GITTELMAN, B

GRAY, SW

HALLING, AM

HARTILL, DL

HELTSLEY, BK

KANDASWAMY, J

KATAYAMA, N

KREINICK, DL

LEWIS, JD

MISTRY, NB

MUELLER, J

NAMJOSHI, R

NANDI, S

NORDBERG, E

OGRADY, C

PETERSON, D

PISHARODY, M

RILEY, D

SAPPER, M

SILVERMAN, A

STONE, S

WORDEN, H

WORRIS, M

SADOFF, AJ

AVERY, P

BESSON, D

GARREN, L

YELTON, J

BOWCOCK, T

KINOSHITA, K

PIPKIN, FM

PROCARIO, M

WILSON, R

WOLINSKI, J

XIAO, D

AMMAR, R

BARINGER, P

COPPAGE, D

机构：

[1] ITHACA COLL,ITHACA,NY 14850

[2] UNIV FLORIDA,GAINESVILLE,FL 32611

[3] HARVARD UNIV,CAMBRIDGE,MA 02138

[4] UNIV KANSAS,LAWRENCE,KS 66045

[5] UNIV MARYLAND,COLLEGE PK,MD 20742

[6] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[7] SYRACUSE UNIV,SYRACUSE,NY 13244

[8] OHIO STATE UNIV,COLUMBUS,OH 43210

[9] PURDUE UNIV,W LAFAYETTE,IN 47907

[10] UNIV ROCHESTER,ROCHESTER,NY 14627

[11] SUNY ALBANY,ALBANY,NY 12222

[12] VANDERBILT UNIV,NASHVILLE,TN 37235

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.64.2226

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the observation of I mesons from IV(4=S) decays which are too energetic to come from =B mesons. These events provide the first evidence for non-=BBA decays of the IV(4=S). The measured rate is =B [IV(4=s)A I=X]=(0.22A+0.06A+0.04)% for I momentum above 2 GeV/=c.

引用

页码：2226 / 2229

页数：4

共 15 条

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