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	Measurement of longitudinal flow decorrelations in pb plus pb collisions at root s(nn)=2.76 and 5.02 tev with the atlas detector
	Aaboud, M.193,194; Aad, G.125,126; Abbott, B.156; Abdinov, O.16; Abeloos, B.160; Abidi, S. H.224; AbouZeid, O. S.197; Abraham, N. L.213; Abramowicz, H.217; Abreu, H.216
刊名	European physical journal c
	2018-02-19
卷号	78期号:2页码:37
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-018-5605-7
通讯作者	Aaboud, m.()
英文摘要	Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range vertical bar eta vertical bar < 2.4 using 7 mu b(-1) and 470 mu b(-1) of pb+pb collisions at root s(nn) = 2.76 and 5.02 tev, respectively, recorded by the atlas detector at the lhc. it is found that the correlation between the harmonic flow coefficients v(n) measured in two separated eta intervals does not factorise into the product of single-particle coefficients, and this breaking of factorisation, or flow decorrelation, increases linearly with the eta separation between the intervals. the flow decorrelation is stronger at 2.76 tevthan at 5.02 tev. higher-order moments of the correlations are also measured, and the corresponding linear coefficients for the kth-moment of the v(n) are found to be proportional to k for v(3), but not for v(2). the decorrelation effect is separated into contributions from the magnitude of v(n) and the event-plane orientation, each as a function of eta. these two contributions are found to be comparable. the longitudinal flow correlations are also measured between v(n) of different order in n. the decorrelations of v(2) and v(3) are found to be independent of each other, while the decorrelations of v(4) and v(5) are found to be driven by the nonlinear contribution from v(2)(2) and v(2)v(3), respectively.
WOS关键词	HEAVY-ION COLLISIONS ; NUCLEAR COLLISIONS ; CHARGED-PARTICLES ; PSEUDORAPIDITY ; DEPENDENCE ; VISCOSITY
WOS研究方向	Physics
WOS类目	Physics, Particles & Fields
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000425395800005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177979
专题	高能物理研究所
通讯作者	Aaboud, M.
作者单位	1.CERN, CH-1211 Geneva, Switzerland 2.Univ Adelaide, Dept Phys, Adelaide, SA, Australia 3.SUNY Albany, Dept Phys, Albany, NY 12222 USA 4.Univ Alberta, Dept Phys, Edmonton, AB, Canada 5.Ankara Univ, Dept Phys, Ankara, Turkey 6.Istanbul Aydin Univ, Istanbul, Turkey 7.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey 8.LAPP, CNRS IN2P3, Annecy Le Vieux, France 9.Univ Savoie Mont Blanc, Annecy Le Vieux, France 10.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
推荐引用方式 GB/T 7714	Aaboud, M.,Aad, G.,Abbott, B.,et al. Measurement of longitudinal flow decorrelations in pb plus pb collisions at root s(nn)=2.76 and 5.02 tev with the atlas detector[J]. European physical journal c,2018,78(2):37.
APA	Aaboud, M..,Aad, G..,Abbott, B..,Abdinov, O..,Abeloos, B..,...&Halladjian, G..(2018).Measurement of longitudinal flow decorrelations in pb plus pb collisions at root s(nn)=2.76 and 5.02 tev with the atlas detector.European physical journal c,78(2),37.
MLA	Aaboud, M.,et al."Measurement of longitudinal flow decorrelations in pb plus pb collisions at root s(nn)=2.76 and 5.02 tev with the atlas detector".European physical journal c 78.2(2018):37.

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