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| 題名: | Evidence for Collective Multiparticle Correlations in p-Pb Collisions |
| 作者: | 余欣珊;Alderweireldt, S.;Bansal, S.;Van Mechelen, P.;Clerbaux, B.;Zenoni, F.;Pagano, D.;Dogra, S.;Novaes, S. F.;Chaparro Sierra, L. F.;Florez, C.;Charlot, C.;Pequegnot, A. L.;Viret, S.;Ata, M.;Knutzen, S.;Merschmeyer, M.;Kuessel, Y.;Kasemann, M.;Raspereza, A.;Roland, B.;Kogler, R.;Marchesini, I.;Stadie, H.;Butz, E.;Gilbert, A.;Topsis-Giotis, I.;Abbrescia, M.;Montanari, A.;Paganoni, M.;Azzi, P.;Dall’Osso, M.;Tosi, M.;Zumerle, G.;Menichelli, M.;Dell’Orso, R.;Moon, C. S.;Spagnolo, P.;Tenchini, R.;Musich, M.;Tamponi, U.;Candelise, V.;Della Ricca, G.;Son, D. C.;Park, I. C.;Salazar Ibarguen, H. A.;Hoorani, H. R.;Olszewski, M.;Gorbunov, I.;Lanev, A.;Popov, V.;Zhokin, A.;Andreev, V.;Azarkin, M.;Battilana, C.;Chamizo Llatas, M.;Marco, J.;Piedra Gomez, J.;Deiters, K.;Lustermann, W.;Chang, P.;Suwonjandee, N.;Zorbilmez, C.;Senkin, S.;Hall, G.;Reid, I. D.;Breto, G.;Cousins, R.;Holzner, A.;Bradmiller-Feld, J.;Golf, F.;Mullin, S. D.;Apresyan, A.;Paulini, M.;Vogel, H.;Thompson, J.;Harris, R. M.;Johnson, M.;Curry, D.;Veeraraghavan, V.;Evdokimov, O.;Dilsiz, K.;Ogul, H.;Anderson, I.;Barnett, B. A.;Majumder, D.;Ivanov, A.;Kolberg, T.;Barbieri, R.;Di Matteo, L.;Stephans, G. S. F.;Trocino, D.;Flowers, S.;Werner, J. S.;Shi, X.;Patel, R.;Sharma, M.;Goodell, J.;Harr, R.;Belknap, D. A.;Hervé, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Anisotropy;Charged particles;Collisions;Correlation;Dynamical systems;Dynamics;Large Hadron Collider;Luminosity;PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
| 日期: | 2015-06-29 |
| 上傳時間: | 2026-04-23 11:54:11 (UTC+8) |
| 出版者: | United States: American Physical Society (APS) |
| 摘要: | 摘要： The second-order azimuthal anisotropy Fourier harmonics, v2, are obtained in p-Pb and PbPb collisions over a wide pseudorapidity (η) 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 √sNN=2.76 TeV, corresponding to an integrated luminosity of 2.5 μb-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 v2 coefficients, extending previous studies of two- and four-particle correlations. For both the p-Pb and PbPb systems, the v2 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 Δη) correlations in both systems. The ratios of v2 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.
其他題名： Phys Rev Lett
出版者： United States: American Physical Society (APS)
出版日期： 2015-07-03
出處： Physical review letters, 2015-07, Vol.115 (1), p.012301, Article 012301
資源來源： American Physical Society Journals
識別號： ISSN: 0031-9007
識別號： ISSN: 1079-7114
識別號： EISSN: 1079-7114
識別號： DOI: 10.1103/PhysRevLett.115.012301
識別號： PMID: 26182092 |
| 顯示於類別: | [物理學系] 期刊論文
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