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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
2015
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号75期号:5页码:237
文章类型Article
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.
学科领域Physics
DOI10.1140/epjc/s10052-015-3435-4
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000355681400005
引用统计
被引频次:31[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/311005/228423
专题粒子天体物理中心
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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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