Measurement of the b-jet cross-section with associated vector boson production with the ATLAS experiment at the LHC

被引：1
|
作者：
Gray, Heather M. [1 ]
机构：
[1] CERN, CH-1211 Geneva 23, Switzerland
来源：
HADRON COLLIDER PHYSICS SYMPOSIUM, 2011 | 2012年 / 28卷
关键词：
D O I：
10.1051/epjconf/20122812050
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
A measurement of the cross-section for vector boson production in association with jets containing b-hadrons is presented using 35 pb(-1) of data from the LHC collected by the ATLAS experiment in 2010. Such processes are not only important tests of pQCD but also large, irreducible backgrounds to searches such as a low mass Higgs boson decaying to pairs of b-quarks when the Higgs is producetd in association with a vector boson. Theoretical predictions of the V+b production rate have large uncertainties and previous measurements have reported discrepancies. Cross-sections measured using in the electron and muon channels will be shown. Comparisons will be made to recent theoretical predictions at the next-to-leading order in alpha(s).
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