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Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider
CMS Collaboration
2012
发表期刊PHYSICAL REVIEW LETTERS
卷号108期号:11
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A search for signatures of extra spatial dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard model expectation is observed using a data sample collected in proton-proton collisions at root s = 7 TeV corresponding to an integrated luminosity of 2: 2 fb(-1). In the context of the large-extra-dimensions model, lower limits are set on the effective Planck scale in the range of 2.3-3.8 TeV at the 95% confidence level. These limits are the most restrictive bounds on virtual-graviton exchange to date. The most restrictive lower limits to date are also set on the mass of the first graviton excitation in the Randall-Sundrum model in the range of 0.86-1.84 TeV, for values of the associated coupling parameter between 0.01 and 0.10.
关键词PHOTON PAIR PRODUCTION HIERARCHY GRAVITY SIGNALS
学科领域Physics
DOI10.1103/PhysRevLett.108.111801
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000301345000006
引用统计
被引频次:53[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/311005/213190
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider[J]. PHYSICAL REVIEW LETTERS,2012,108(11).
APA CMS Collaboration.(2012).Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider.PHYSICAL REVIEW LETTERS,108(11).
MLA CMS Collaboration."Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider".PHYSICAL REVIEW LETTERS 108.11(2012).
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