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Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy
CMS Collaboration
2012
发表期刊PHYSICAL REVIEW LETTERS
卷号108期号:26
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要Results are presented from a search for new physics in the final state containing a photon (gamma) and missing transverse energy (is not an element of(T)). The data correspond to an integrated luminosity of 5.0 fb(-1) collected in pp collisions at root s = 7 TeV by the CMS experiment. The observed event yield agrees with standard-model expectations for the gamma + is not an element of(T) events. Using models for the production of dark-matter particles (chi), we set 90% confidence level (C. L.) upper limits of 13.6-15.4 fb on chi production in the gamma + is not an element of(T) state. These provide the most sensitive upper limits for spin-dependent chi-nucleon scattering for chi masses (M-chi) between 1 and 100 GeV. For spin-independent contributions, the present limits are extended to M-chi < 3.5 GeV. For models with 3-6 large extra dimensions, our data exclude extra-dimensional Planck scales between 1.64 and 1.73 TeV at 95% C.L.
关键词COLLIDERS
学科领域Physics
DOI10.1103/PhysRevLett.108.261803
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000305738700008
引用统计
被引频次:117[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/311005/213271
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 Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy[J]. PHYSICAL REVIEW LETTERS,2012,108(26).
APA CMS Collaboration.(2012).Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy.PHYSICAL REVIEW LETTERS,108(26).
MLA CMS Collaboration."Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy".PHYSICAL REVIEW LETTERS 108.26(2012).
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