Evidence for collective multiparticle correlations in p-pb collisions
文献类型：期刊论文
| 作者 | 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.2,190; Ghete, V. M.2 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2015-06-29 |
| 卷号 | 115期号:1页码:17 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.115.012301 |
| 英文摘要 | The second-order azimuthal anisotropy fourier harmonics, nu(2), are obtained in p-pb and pbpb collisions over a wide pseudorapidity (.) range based on correlations among six or more charged particles. the p-pb data, corresponding to an integrated luminosity of 35 nb(-1), were collected during the 2013 lhc p-pb run at a nucleon-nucleon center-of-mass energy of 5.02 tev by the cms experiment. a sample of semiperipheral pbpb collision data at root s-nn = 2.76 tev, corresponding to an integrated luminosity of 2.5 mu b(-1) and covering a similar range of particle multiplicities as the p-pb data, is also analyzed for comparison. the six-and eight-particle cumulant and the lee-yang zeros methods are used to extract the nu(2) coefficients, extending previous studies of two-and four-particle correlations. for both the p-pb and pbpb systems, the nu(2) values obtained with correlations among more than four particles are consistent with previously published four-particle results. these data support the interpretation of a collective origin for the previously observed long-range (large..) correlations in both systems. the ratios of nu(2) values corresponding to correlations including different numbers of particles are compared to theoretical predictions that assume a hydrodynamic behavior of a p-pb system dominated by fluctuations in the positions of participant nucleons. these results provide new insights into the multiparticle dynamics of collision systems with a very small overlapping region. |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000357030500003 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/1639613 |
| 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.OeAW, Inst Hochenergiephys, Vienna, Austria 3.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 4.Univ Antwerp, 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 La Neuve, 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. Evidence for collective multiparticle correlations in p-pb collisions[J]. Physical review letters,2015,115(1):17. |
| APA | Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Bergauer, T..,...&Gorbunov, I..(2015).Evidence for collective multiparticle correlations in p-pb collisions.Physical review letters,115(1),17. |
| MLA | Khachatryan, V.,et al."Evidence for collective multiparticle correlations in p-pb collisions".Physical review letters 115.1(2015):17. |
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