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Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at root s=7TeV
CMS Collaboration
2015
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号75期号:6页码:288
摘要The inclusive jet cross section for proton-proton collisions at a centre-of-mass energy of 7 TeV was measured by the CMS Collaboration at the LHC with data corresponding to an integrated luminosity of 5.0 fb(-1). The measurement covers a phase space up to 2 TeV in jet transverse momentum and 2.5 in absolute jet rapidity. The statistical precision of these data leads to stringent constraints on the parton distribution functions of the proton. The data provide important input for the gluon density at high fractions of the proton momentum and for the strong coupling constant at large energy scales. Using predictions from perturbative quantum chromodynamics at next-to-leading order, complemented with electroweak corrections, the constraining power of these data is investigated and the strong coupling constant at the Z boson mass M-Z is determined to be alpha(S)(M-Z) = 0.1185 +/- 0.0019 (exp)(-0.0037)(+0.0060) (theo), which is in agreement with the world average.
文章类型Article
学科领域Physics
DOI10.1140/epjc/s10052-015-3499-1
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000356888300005
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被引频次:21[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/311005/228622
专题粒子天体物理中心
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CMS Collaboration. Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at root s=7TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(6):288.
APA CMS Collaboration.(2015).Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at root s=7TeV.EUROPEAN PHYSICAL JOURNAL C,75(6),288.
MLA CMS Collaboration."Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at root s=7TeV".EUROPEAN PHYSICAL JOURNAL C 75.6(2015):288.
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