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
收藏
页码：1211 / 1214
页数：4
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