Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV
CMS Collaboration
刊名PHYSICAL REVIEW LETTERS
2010
卷号105期号:26
关键词PHENOMENOLOGY DISTRIBUTIONS COLLIDER LIMIT
学科分类Physics
DOI10.1103/PhysRevLett.105.262001
通讯作者Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at root s = 7 eV, is described. The data sample of the study corresponds to an integrated luminosity of 2.9 pb(-1) collected with the CMS detector at the LHC. The dijet centrality ratio, which quantifies the angular distribution of the dijets, is measured as a function of the invariant mass of the dijet system and is found to agree with the predictions of the standard model. A statistical analysis of the data provides a lower limit on the energy scale of quark contact interactions. The sensitivity of the analysis is such that the expected limit is 2.9 TeV; because the observed value of the centrality ratio at high invariant mass is below the expectation, the observed limit is 4.0 TeV at the 95% confidence level.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000286754700004
引用统计
被引频次:42[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/311005/213006
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV[J]. PHYSICAL REVIEW LETTERS,2010,105(26).
APA CMS Collaboration.(2010).Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV.PHYSICAL REVIEW LETTERS,105(26).
MLA CMS Collaboration."Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at root s=7 TeV".PHYSICAL REVIEW LETTERS 105.26(2010).
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