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Exclusive gamma gamma -> mu(+)mu(-) production in proton-proton collisions at root s=7TeV
CMS Collaboration
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号1
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A measurement of the exclusive two-photon production of muon pairs in proton-proton collisions at root s = 7 TeV, pp -> p mu(+)mu(-) p, is reported using data corresponding to an integrated luminosity of 40 pb-1. For muon pairs with invariant mass greater than 11.5 GeV, transverse momentum p(T)(mu) > 4 GeV and pseudorapidity 1770.1) < 2.1, a fit to the dimuon p(T)(mu(+)mu(-)) distribution results in a measured cross section of sigma(p -> p mu(+)mu(-) p) - 3.38(-0.55)(+0.58) (stat.)+/- 0.16 (syst.) +/- 0.14 (lumi.) pb, consistent with the theoretical prediction evaluated with the event generator LPAIR. The ratio to the predicted cross section is 0.83+(0.14)(-0.13) (stat.) +/- 0.04 (syst.) +/- 0.03 (lumi.). The characteristic distributions of the muon pairs produced via Ty fusion, such as the muon acoplanarity, the muon pair invariant mass and transverse momentum agree with those from the theory.
关键词LHC
学科领域Physics
DOI10.1007/JHEP01(2012)052
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000300181800052
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213176
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. Exclusive gamma gamma -> mu(+)mu(-) production in proton-proton collisions at root s=7TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(1).
APA CMS Collaboration.(2012).Exclusive gamma gamma -> mu(+)mu(-) production in proton-proton collisions at root s=7TeV.JOURNAL OF HIGH ENERGY PHYSICS(1).
MLA CMS Collaboration."Exclusive gamma gamma -> mu(+)mu(-) production in proton-proton collisions at root s=7TeV".JOURNAL OF HIGH ENERGY PHYSICS .1(2012).
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