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Measurement of four-jet production in proton-proton collisions at root s=7 TeV
CMS Collaboration
2014
发表期刊PHYSICAL REVIEW D
卷号89期号:9
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要Measurements of the differential cross sections for the production of exactly four jets in proton-proton collisions are presented as a function of the transverse momentum p(T) and pseudorapidity eta, together with the correlations in azimuthal angle and the p(T) balance among the jets. The data sample was collected in 2010 at a center-of-mass energy of 7 TeV with the CMS detector at the LHC, with an integrated luminosity of 36 pb(-1). The cross section for exactly four jets, with two hard jets of p(T) > 50 GeV each, together with two jets of p(T) > 20 GeV each, within vertical bar eta vertical bar < 4.7 is measured to be sigma = 330 +/- 5(stat.) +/- 45(syst.) nb. It is found that fixed-order matrix element calculations including parton showers describe the measured differential cross sections in some regions of phase space only, and that adding contributions from double parton scattering brings the Monte Carlo predictions closer to the data.
关键词DOUBLE PARTON SCATTERING (P)OVER-BAR-P COLLISIONS S=1.8 TEV
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.89.092010
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000336759700001
引用统计
被引频次:16[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/311005/213716
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 four-jet production in proton-proton collisions at root s=7 TeV[J]. PHYSICAL REVIEW D,2014,89(9).
APA CMS Collaboration.(2014).Measurement of four-jet production in proton-proton collisions at root s=7 TeV.PHYSICAL REVIEW D,89(9).
MLA CMS Collaboration."Measurement of four-jet production in proton-proton collisions at root s=7 TeV".PHYSICAL REVIEW D 89.9(2014).
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