A PRECISE DETERMINATION OF THE W-MASS AND Z-MASS AT THE CERN PBARP COLLIDER

被引:86
作者
ALITTI, J
ANSARI, R
ANSORGE, RE
AUTIERO, D
BAGNAIA, P
BAREYRE, P
BLAYLOCK, G
BONAMY, P
BONESINI, M
BOOTH, CN
BORER, K
BUSKULIC, D
CARBONI, G
CAVALLI, D
CAVASINNI, V
CENCI, P
CHOLLET, JC
CLARK, AG
CONTA, C
COSTA, G
COSTANTINI, F
CRITTENDEN, J
DELLACQUA, A
DELOTTO, B
DELPRETE, T
DEWOLF, RS
DILELLA, L
EGAN, GF
EINSWEILER, KF
FAYARD, L
FEDERSPIEL, A
FERRARI, R
FRATERNALI, M
FROIDEVAUX, D
FUMAGALLI, G
GAILLARD, JM
GIANOTTI, F
GILDEMEISTER, O
GOSSLING, C
GOGGI, VG
GRUNENDAHL, S
HANSEN, JR
HARA, K
HELLMAN, S
HUGENTOBLER, E
HULTQVIST, K
IACOPINI, E
INCANDELA, J
JAKOBS, K
JENNI, P
机构
[1] UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,F-91405 ORSAY,FRANCE
[2] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND
[3] UNIV PISA,DEPARTIMENTO FIS,I-56100 PISA,ITALY
[4] IST NAZL FIS NUCL,I-56100 PISA,ITALY
[5] CERN,CH-1211 GENEVA 23,SWITZERLAND
[6] UNIV MILAN,DEPARTIMENTO FIS,I-20133 MILAN,ITALY
[7] IST NAZL FIS NUCL,I-20133 MILAN,ITALY
[8] UNIV BERN,HOCHENERGIEPHYS LAB,CH-3012 BERN,SWITZERLAND
[9] UNIV PERUGIA,DEPARTIMENTO FIS,I-06100 PERUGIA,ITALY
[10] ST NAZL FIS NUCL,I-06100 PERUGIA,ITALY
[11] UNIV PAVIA,DIPARTIMENTO FIS NUCL & TEOR,I-27100 PAVIA,ITALY
[12] IST NAZL FIS NUCL,I-27100 PAVIA,ITALY
[13] UNIV HEIDELBERG,INST HOCHENERGIEPHYS,W-6900 HEIDELBERG,GERMANY
关键词
D O I
10.1016/0370-2693(90)91502-3
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The UA2 experiment has collected large samples of W and Z events during recent runs at the CERN pp Collider at s = 630 GeV. These samples have been used to perform precise measurements of the masses of the W and Z bosons. After a careful analysis of systematic errors, an improved result is obtained for the mass ratio mwmz. This provides a new value for the weak mixing parameter sin2θw. Furthermore, it can be combined with recent measurements of the Z mass from e+e- colliders to give an absolute measurement of the W mass, leading to the result mw=80.49±0.43 (stat) ± 0.24 (syst) GeV. © 1990.
引用
收藏
页码:150 / 164
页数:15
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