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	Nuclear effects on the transverse momentum spectra of charged particles in ppb collisions at root s(nn)=5.02 tev
	Khachatryan, V.1; Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Bergauer, T.2; Dragicevic, M.2; Eroe, J.2; Friedl, M.2; Fruehwirth, R.2; Ghete, V. M.2
刊名	European physical journal c
	2015-05-29
卷号	75期号:5页码:25
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-015-3435-4
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.
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000355681400005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/1639478
专题	高能物理研究所
通讯作者	Khachatryan, V.
作者单位	1.Yerevan Phys Inst, Yerevan 375036, Armenia 2.Inst Hochenergiephys OeAW, Vienna, Austria 3.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 4.Univ Antwerp, B-2020 Antwerp, Belgium 5.Vrije Univ Brussel, Brussels, Belgium 6.Univ Libre Bruxelles, Brussels, Belgium 7.Univ Ghent, B-9000 Ghent, Belgium 8.Catholic Univ Louvain, Louvain, Belgium 9.Univ Mons, B-7000 Mons, Belgium 10.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
推荐引用方式 GB/T 7714	Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. 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):25.
APA	Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Bergauer, T..,...&Levchenko, P..(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),25.
MLA	Khachatryan, V.,et al."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):25.

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