dc.contributor.author | Adam, Jaroslav | |
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 | Agostinelli, Andrea | |
dc.contributor.author | Agrawal, Nikita | |
dc.contributor.author | Ahammed, Zubayer | |
dc.contributor.author | Ahmed, Ijaz | |
dc.contributor.author | Ahn, Sang Un | |
dc.contributor.author | Alme, Johan | |
dc.contributor.author | Erdal, Hege Austrheim | |
dc.contributor.author | Helstrup, Håvard | |
dc.contributor.author | Hetland, Kristin Fanebust | |
dc.contributor.author | Kileng, Bjarte | |
dc.contributor.author | Altinpinar, Sedat | |
dc.contributor.author | Djuvsland, Øystein | |
dc.contributor.author | Haaland, Øystein Senneset | |
dc.contributor.author | Huang, Meidana | |
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 | Skjerdal, Kyrre | |
dc.contributor.author | Ullaland, Kjetil | |
dc.contributor.author | Velure, Arild | |
dc.contributor.author | Wagner, Boris | |
dc.contributor.author | Zhou, Zhuo | |
dc.contributor.author | Arsene, Ionut Christian | |
dc.contributor.author | Bätzing, Paul Christoph | |
dc.contributor.author | Dordic, Olja | |
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 | Aimo, Ilaria | |
dc.contributor.author | Aiola, Salvatore | |
dc.contributor.author | Ajaz, Muhammad | |
dc.contributor.author | Akindinov, Alexander | |
dc.contributor.author | Alam, Sk Noor | |
dc.contributor.author | Aleksandrov, Dimitry | |
dc.contributor.author | Alessandro, Bruno | |
dc.contributor.author | ALICE, Collaboration | |
dc.date.accessioned | 2017-11-03T14:07:41Z | |
dc.date.available | 2017-11-03T14:07:41Z | |
dc.date.issued | 2015-06 | |
dc.Published | Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agostinelli A, Agrawal N, Ahammed Z, Ahmed I, Ahn SU, Alme J, Erdal HA, Helstrup H, Hetland KF, Kileng B, Altinpinar S, Djuvsland Ø, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Skjerdal K, Ullaland K, Velure A, Wagner B, Zhou Z, Arsene IC, Bätzing P, Dordic O, Lindal S, Mahmood SM, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Aimo I, Aiola S, Ajaz M, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, ALICE C. Centrality dependence of particle production in p-Pb collisions at √SNN =5.02 TeV. Physical Review C. Nuclear Physics. 2015;91:064905 | eng |
dc.identifier.issn | 0556-2813 | en_US |
dc.identifier.issn | 1089-490X | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/16826 | |
dc.description.abstract | We report measurements of the primary charged particle pseudorapidity density and transverse momentum distributions in p-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 5.02 TeV, and investigate their correlation with experimental observables sensitive to the centrality of the collision. Centrality classes are defined using different event activity estimators, i.e. charged particle multiplicities measured in three disjunct pseudorapidity regions as well as the energy measured at beam rapidity (zero-degree). The procedures to determine the centrality, quantified by the number of participants \(N_{\rm part}\) , or the number of nucleon-nucleon binary collisions \(N_{\rm coll}\) , are described. We show that, in contrast to Pb-Pb collisions, in p-Pb collisions large multiplicity fluctuations together with the small range of participants available, generate a dynamical bias in centrality classes based on particle multiplicity. We propose to use the zero-degree energy, which we expect not to introduce a dynamical bias, as an alternative event-centrality estimator. Based on zero-degree energy centrality classes, the \(N_{\rm part}\) dependence of particle production is studied. Under the assumption that the multiplicity measured in the Pb-going rapidity region scales with the number of Pb-participants, an approximate independence of the multiplicity per participating nucleon measured at mid-rapitity of the number of participating nucleons is observed. Furthermore, at high-\)._{\rm T}\) the p-Pb spectra are found to be consistent with the pp spectra scaled by \(N_{\rm coll}\) for all centrality classes. Our results represent valuable input for the study of the event activity dependence of hard probes in p-Pb collision and, hence, help to establish baselines for the interpretation of the Pb-Pb data. | en_US |
dc.language.iso | eng | eng |
dc.publisher | American Physical Society | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | eng |
dc.title | Centrality dependence of particle production in p-Pb collisions at \(\sqrt{s_{\rm NN} }\)= 5.02 TeV | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2017-10-09T12:55:40Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2015 CERN, for the ALICE Collaboration | en_US |
dc.identifier.doi | https://doi.org/10.1103/physrevc.91.064905 | |
dc.identifier.cristin | 1258333 | |
dc.source.journal | Physical Review C. Nuclear Physics | |
dc.relation.project | Norges forskningsråd: 217288 | |
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 | |