Azimuthally differential pion femtoscopy in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}=2.76\) TeV
dc.contributor.author | Adamová, Dagmar | |
dc.contributor.author | Aggarwal, Madan M. | |
dc.contributor.author | Aglieri Rinella, Gianluca | |
dc.contributor.author | Agnello, Michelangelo | |
dc.contributor.author | Agrawal, Nikita | |
dc.contributor.author | Ahammed, Zubayer | |
dc.contributor.author | Ahmad, Shafiq F. | |
dc.contributor.author | Ahn, Sang Un | |
dc.contributor.author | Aiola, Salvatore | |
dc.contributor.author | Akindinov, Alexander | |
dc.contributor.author | Alme, Johan | |
dc.contributor.author | Helstrup, Håvard | |
dc.contributor.author | Hetland, Kristin Fanebust | |
dc.contributor.author | Kileng, Bjarte | |
dc.contributor.author | Nesbø, Simon Voigt | |
dc.contributor.author | Altinpinar, Sedat | |
dc.contributor.author | Djuvsland, Øystein | |
dc.contributor.author | Lønne, Per-Ivar | |
dc.contributor.author | Nystrand, Joakim | |
dc.contributor.author | Rehman, Attiq ur | |
dc.contributor.author | Røhrich, Dieter | |
dc.contributor.author | Tambave, Ganesh Jagannath | |
dc.contributor.author | Ullaland, Kjetil | |
dc.contributor.author | Velure, Arild | |
dc.contributor.author | Wagner, Boris | |
dc.contributor.author | Zhang, Hui | |
dc.contributor.author | Zhou, Zhuo | |
dc.contributor.author | Zhu, Hongsheng | |
dc.contributor.author | Arsene, Ionut Christian | |
dc.contributor.author | Bätzing, Paul Christoph | |
dc.contributor.author | Dordic, Olja | |
dc.contributor.author | Lardeux, Antoine Xavier | |
dc.contributor.author | Lindal, Svein | |
dc.contributor.author | Mahmood, Sohail Musa | |
dc.contributor.author | Milosevic, Jovan | |
dc.contributor.author | Qvigstad, Henrik | |
dc.contributor.author | Richter, Matthias | |
dc.contributor.author | Røed, Ketil | |
dc.contributor.author | Skaali, Toralf Bernhard | |
dc.contributor.author | Tveter, Trine Spedstad | |
dc.contributor.author | Wikne, Jon Christopher | |
dc.contributor.author | Zhao, Chengxin | |
dc.contributor.author | Langøy, Rune | |
dc.contributor.author | Lien, Jørgen André | |
dc.contributor.author | Alam, Sk Noor | |
dc.contributor.author | De Albuquerque, Danilo Silva | |
dc.contributor.author | Aleksandrov, Dimitry | |
dc.contributor.author | Alessandro, Bruno | |
dc.contributor.author | Alexandre, Didier | |
dc.contributor.author | Alfaro Molina, José Rubén | |
dc.contributor.author | ALICE, Collaboration | |
dc.date.accessioned | 2017-11-06T12:28:34Z | |
dc.date.available | 2017-11-06T12:28:34Z | |
dc.date.issued | 2017-06 | |
dc.Published | Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad SF, Ahn SU, Aiola S, Akindinov A, Alme J, Helstrup H, Hetland KF, Kileng B, Nesbø SV, Altinpinar S, Djuvsland Ø, Lønne P, Nystrand J, Rehman Au, Røhrich D, Tambave GJ, Ullaland K, Velure A, Wagner B, Zhang H, Zhou Z, Zhu H, Arsene IC, Bätzing P, Dordic O, Lardeux AX, Lindal S, Mahmood SM, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Alam SN, De Albuquerque DS, Aleksandrov D, Alessandro B, Alexandre D, Alfaro Molina JR, ALICE C. Azimuthally differential pion femtoscopy in Pb-Pb collisions at √sNN=2.76 TeV. Physical Review Letters. 2017;118:222301 | eng |
dc.identifier.issn | 0031-9007 | en_US |
dc.identifier.issn | 1079-7114 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/16838 | |
dc.description.abstract | We present the first azimuthally differential measurements of the pion source size relative to the second harmonic event plane in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon pair of \(\sqrt{s_{\rm NN}}=2.76\) TeV. The measurements have been performed in the centrality range 0-50% and for pion pair transverse momenta \(0.2 < k_{\rm T} < 0.7\) GeV/\(c\), We find that the \(R_{\rm side}\) and \(R_{\rm out}\) radii, which characterize the pion source size in the directions perpendicular and parallel to the pion transverse momentum, oscillate out of phase, similar to what was observed at the Relativistic Heavy Ion Collider (RHIC). The final-state source eccentricity, estimated via \(R_{\rm side}\) oscillations, is found to be significantly smaller than the initial-state source eccentricity, but remains positive; indicating that even after a stronger expansion in the in-plane direction, the pion source at the freeze-out is still elongated in the out-of-plane direction. The 3+1D hydrodynamic calculations are in qualitative agreement with observed centrality and transverse momentum \(R_{\rm side}\) oscillations, but systematically underestimate the oscillation magnitude. | en_US |
dc.language.iso | eng | eng |
dc.publisher | American Physical Society | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.title | Azimuthally differential pion femtoscopy in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}=2.76\) TeV | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2017-10-06T08:40:27Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2017 CERN, for the ALICE Collaboration | en_US |
dc.identifier.doi | https://doi.org/10.1103/physrevlett.118.222301 | |
dc.identifier.cristin | 1492366 | |
dc.source.journal | Physical Review Letters | |
dc.relation.project | Norges forskningsråd: 255188 | |
dc.subject.nsi | VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 | |
dc.subject.nsi | VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 |