Measurement of longitudinal flow decorrelations in pb plus pb collisions at root s(nn)=2.76 and 5.02 tev with the atlas detector
文献类型：期刊论文
| 作者 | 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
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000425395800005 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.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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