1ST EVIDENCE OF CHI-C PRODUCTION IN B-MESON DECAYS

被引：12

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, GERMANY

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

[3] UNIV HAMBURG, INST EXPTL PHYS 2, W-2000 HAMBURG 13, 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, SLOVENIA

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

[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 USA

来源：

PHYSICS LETTERS B | 1992年 / 277卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)90981-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have obtained the first evidence for B meson decays into chi(c) mesons. The inclusive branching ratio for the decay B --> chi(c1)X was measured to be (1.05 +/- 0.35 +/- 0.25)% assuming no chi(c2) production. In addition, four candidates for the exclusive decay B+/- --> chi(c1)K+/- have been observed, corresponding to a branching ratio of (0.19 +/- 0.13 +/- 0.06)%.

引用

页码：209 / 214

页数：6

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