MEASUREMENT OF THE BBBAR FRACTION IN HADRONIC Z DECAYS

被引：22

作者：

KRAL, JF

ABRAMS, GS

ADOLPHSEN, CE

AVERILL, D

BALLAM, J

BARISH, BC

BARKLOW, T

BARNETT, BA

BARTELT, J

BETHKE, S

BLOCKUS, D

BONVICINI, G

BOYARSKI, A

BRABSON, B

BREAKSTONE, A

BULOS, F

BURCHAT, PR

BURKE, DL

CENCE, RJ

CHAPMAN, J

CHMEISSANI, M

CORDS, D

COUPAL, DP

DAUNCEY, P

DESTAEBLER, HC

DORFAN, DE

DORFAN, JM

DREWER, DC

ELIA, R

FELDMAN, GJ

FERNANDES, D

FIELD, RC

FORD, WT

FORDHAM, C

FREY, R

FUJINO, D

GAN, KK

GATTO, C

GERO, E

GIDAL, G

GLANZMAN, T

GOLDHABER, G

CADENAS, JJG

GRATTA, G

GRINDHAMMER, G

GROSSEWIESMANN, P

HANSON, G

HARR, R

HARRAL, B

HARRIS, FA

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

[2] UNIV CALIF SANTA CRUZ,SANTA CRUZ,CA 95064

[3] INDIANA UNIV,BLOOMINGTON,IN 47405

[4] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309

[5] CALTECH,PASADENA,CA 91125

[6] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218

[7] UNIV MICHIGAN,ANN ARBOR,MI 48109

[8] UNIV HAWAII,HONOLULU,HI 96822

[9] UNIV COLORADO,BOULDER,CO 80309

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.64.1211

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using isolated leptons reconstructed in the Mark II detector to tag bb events, we measure the fraction of bb events in hadronic Z0 decays to be 0.23-0.09+0.11, in good agreement with the standard-model prediction of 0.22. We find (Zbb)=0.43-0.17+0.21 GeV. © 1990 The American Physical Society.

引用

页码：1211 / 1214

页数：4

共 31 条

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