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A search for new physics in dijet mass and angular distributions in pp collisions at root s=7 TeV measured with the ATLAS detector
ATLAS collaboration
2011
发表期刊NEW JOURNAL OF PHYSICS
卷号13
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Freiburg, Germany.
摘要A search for new interactions and resonances produced in LHC proton-proton (pp) collisions at a centre-of-mass energy root s = 7 TeV was performed with the ATLAS detector. Using a dataset with an integrated luminosity of 36 pb(-1), dijet mass and angular distributions were measured up to dijet masses of similar to 3.5 TeV and were found to be in good agreement with Standard Model predictions. This analysis sets limits at 95% CL on various models for new physics: an excited quark is excluded for mass between 0.60 and 2.64 TeV, an axigluon hypothesis is excluded for axigluon masses between 0.60 and 2.10 TeV and quantum black holes are excluded in models with six extra space-time dimensions for quantum gravity scales between 0.75 and 3.67 TeV. Production cross section limits as a function of dijet mass are set using a simplified Gaussian signal model to facilitate comparisons with other hypotheses. Analysis of the dijet angular distribution using a novel technique simultaneously employing the dijet mass excludes quark contact interactions with a compositeness scale 3 below 9.5 TeV.
关键词PARTON DISTRIBUTIONS HADRON COLLIDERS CHIRAL COLOR QCD QUARK
学科领域Physics
DOI10.1088/1367-2630/13/5/053044
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000292002400004
引用统计
被引频次:63[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/311005/213071
专题实验物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
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ATLAS collaboration. A search for new physics in dijet mass and angular distributions in pp collisions at root s=7 TeV measured with the ATLAS detector[J]. NEW JOURNAL OF PHYSICS,2011,13.
APA ATLAS collaboration.(2011).A search for new physics in dijet mass and angular distributions in pp collisions at root s=7 TeV measured with the ATLAS detector.NEW JOURNAL OF PHYSICS,13.
MLA ATLAS collaboration."A search for new physics in dijet mass and angular distributions in pp collisions at root s=7 TeV measured with the ATLAS detector".NEW JOURNAL OF PHYSICS 13(2011).
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