W AND Z PRODUCTION IN THE FORWARD REGION AT LHCb

被引：1
|
作者：
Mueller, Katharina [1 ]
机构：
[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland
来源：
ACTA PHYSICA POLONICA B | 2011年 / 42卷 / 07期
关键词：
D O I：
10.5506/APhysPolB.42.1531
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Results are presented on the production of Z -> mu mu and W -> mu v in the forward region at LHCb. The analysis is based on an integrated luminosity of 16.5 +/- 1.7 pb(-1). The production cross-section for Z with muons in the pseudorapidity range 2 < eta(mu) < 4.5 and 81 < m(Z) < 101 GeV is 74 +/- 2 +/- 3 +/- 7 pb and is also measured differentially in rapidity of the Z. The total cross-section for W production is sigma(W+) (2 < eta < 4.5) = 1007 +/- 48 +/- 101 pb and sigma(W)- (2 < eta 4.5) = 680 +/- 40 +/- 68 pb in the lepton pseudorapidity range 2 < eta < 4.5. The charge asymmetry is measured as a function of the lepton pseudorapidity. All results are in agreement with next to leading order perturbative QCD predictions.
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页码：1531 / 1538
页数：8
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