OBSERVATIONS OF LAMBDA-C+ SEMILEPTONIC DECAY

被引：32

作者：

ALBRECHT, H

EHRLICHMANN, H

HAMACHER, T

KRUGER, A

NAU, A

NIPPE, A

REIDENBACH, M

SCHAFER, M

SCHRODER, H

SCHULZ, HD

SEFKOW, F

WURTH, R

APPUHN, RD

HAST, C

HERRERA, G

KOLANOSKI, H

LANGE, A

LINDNER, A

MANKEL, R

SCHIEBER, M

SIEGMUND, T

SPAAN, B

THURN, H

TOPFER, D

WALTHER, A

WEGENER, D

PAULINI, M

REIM, K

VOLLAND, U

WEGENER, H

MUNDT, R

OEST, T

SCHMIDTPARZEFALL, W

FUNK, W

STIEWE, J

WERNER, S

BALL, S

GABRIEL, JC

GEYER, C

HOLSCHER, A

HOFMANN, W

HOLZER, B

KHAN, S

KNOPFLE, KT

SPENGLER, J

BRITTON, DI

CHARLESWORTH, CEK

EDWARDS, KW

KAPITZA, H

KRIEGER, P

机构：

[1] UNIV DORTMUND,INST PHYS,W-4600 DORTMUND 50,GERMANY

[2] UNIV ERLANGEN NURNBERG,INST PHYS,W-8520 ERLANGEN,GERMANY

[3] UNIV HAMBURG,INST EXPTL PHYS 2,W-2000 HAMBURG 50,GERMANY

[4] UNIV HEIDELBERG,INST HOCHENERGIEPHYS,W-6900 HEIDELBERG,GERMANY

[5] MAX PLANCK INST NUCL PHYS,W-6900 HEIDELBERG 1,GERMANY

[6] UNIV KARLSRUHE,INST EXPTL KERNPHYS,W-7500 KARLSRUHE,GERMANY

[7] EDVARD KARDELJ UNIV,INST J STEFAN,YU-61111 LJUBLJANA,YUGOSLAVIA

[8] EDVARD KARDELJ UNIV,ODDELEK FIZ,YU-61111 LJUBLJANA,YUGOSLAVIA

[9] UNIV LUND,INST PHYS,S-22362 LUND,SWEDEN

[10] MOSCOW THEORET & EXPTL PHYS INST,MOSCOW 117259,USSR

[11] UNIV S CAROLINA,COLUMBIA,SC 29208

来源：

PHYSICS LETTERS B | 1991年 / 269卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0370-2693(91)91480-J

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Direct observations of the semileptonic decay of LAMBDA-c+ in the decay channels LAMBDA-c+ --> LAMBDA-e+X and LAMBDA-c+ --> LAMBDA-mu+X have been made using the ARGUS detector at the DORIS II e+e- storage ring. The cross section times branching ratio were found to be sigma(e+e- --> LAMBDA-c+X).BR(LAMBDA-c+ --> LAMBDA-e+X) = 4.20 +/- 1.28 +/- 0.71 pb and sigma(e+e- --> LAMBDA-c+X).BR(LAMBDA-c+ --> LAMBDA-mu+X) = 3.91 +/- 2.02 +/- 0.90 pb.

引用

页码：234 / 242

页数：9

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