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Search for contact interactions in dilepton events from pp collisions at root s=7 TeV with the ATLAS detector
ATLAS collaboration
2012
发表期刊PHYSICS LETTERS B
卷号712期号:1--2页码:40-58
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton-proton collisions produced by the LHC at,root s = 7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011, corresponds to an integrated luminosity of 1.08 and 1.21 fb(-1) in the e(+)e(-) and mu(+)mu(-) channels, respectively. No significant deviations from the standard model are observed. Using a Bayesian approach with a prior flat in 1/A(2), the following 95% CL lower limits are placed on the energy scale of llqq contact interactions: A(-) > 10.1 TeV (A(+) > 9.4 TeV) in the electron channel and A(-) > 8.0 TeV (A(+) > 7.0 TeV) in the muon channel for constructive (destructive) interference in the left-left isoscalar contact interaction model. Limits are also provided for a prior flat in 1/A(4). (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
关键词FERMION-PAIR PRODUCTION COMPOSITENESS SCALES E(+)E(-) COLLISIONS STANDARD MODEL QUARK PHYSICS HERA LEP DISTRIBUTIONS CONSTRAINTS
学科领域Physics
DOI10.1016/j.physletb.2012.04.026
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000304742500006
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213250
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Search for contact interactions in dilepton events from pp collisions at root s=7 TeV with the ATLAS detector[J]. PHYSICS LETTERS B,2012,712(1--2):40-58.
APA ATLAS collaboration.(2012).Search for contact interactions in dilepton events from pp collisions at root s=7 TeV with the ATLAS detector.PHYSICS LETTERS B,712(1--2),40-58.
MLA ATLAS collaboration."Search for contact interactions in dilepton events from pp collisions at root s=7 TeV with the ATLAS detector".PHYSICS LETTERS B 712.1--2(2012):40-58.
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