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Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV
CMS Collaboration
2011
发表期刊PHYSICAL REVIEW D
卷号84期号:5
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A measurement of the differential cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The data sample corresponds to an integrated luminosity of 36 pb(-1) recorded by the CMS detector at the LHC. The measurement covers the pseudorapidity range vertical bar eta vertical bar < 2.5 and the transverse energy range 25 < E-T < 400 GeV, corresponding to the kinematic region 0.007 < x(T) < 0.114. Photon candidates are identified with two complementary methods, one based on photon conversions in the silicon tracker and the other on isolated energy deposits in the electromagnetic calorimeter. The measured cross section is presented as a function of E-T in four pseudorapidity regions. The next-to-leading-order perturbative QCD calculations are consistent with the measured cross section.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.84.052011
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000306432100003
引用统计
被引频次:30[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/311005/213290
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. Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV[J]. PHYSICAL REVIEW D,2011,84(5).
APA CMS Collaboration.(2011).Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV.PHYSICAL REVIEW D,84(5).
MLA CMS Collaboration."Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV".PHYSICAL REVIEW D 84.5(2011).
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