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	Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at root s(NN)=5.02 TeV
	CMS Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2015
卷号	75期号:5页码:237
英文摘要	Transverse momentum spectra of charged particles are measured by the CMS experiment at the CERN LHC in pPb collisions at root s(NN) = 5.02 TeV, in the range 0.4 < pT < 120 GeV/c and pseudorapidity |eta(CM)| < 1.8 in the proton-nucleon center-of-mass frame. For p(T) < 10 GeV/c, the charged-particle production is asymmetric about eta(CM) = 0, with smaller yield observed in the direction of the proton beam, qualitatively consistent with expectations from shadowing in nuclear parton distribution functions (nPDF). A pp reference spectrum at root s = 5.02 TeV is obtained by interpolation from previous measurements at higher and lower center-of-mass energies. The p(T) distribution measured in pPb collisions shows an enhancement of charged particles with p(T) > 20 GeV/c compared to expectations from the pp reference. The enhancement is larger than predicted by perturbative quantum chromodynamics calculations that include antishadowing modifications of nPDFs.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000355681400005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228423]
专题	高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	CMS Collaboration. Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at root s(NN)=5.02 TeV[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(5):237.
APA	CMS Collaboration.(2015).Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at root s(NN)=5.02 TeV.EUROPEAN PHYSICAL JOURNAL C,75(5),237.
MLA	CMS Collaboration."Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at root s(NN)=5.02 TeV".EUROPEAN PHYSICAL JOURNAL C 75.5(2015):237.

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