Show simple item record

dc.contributor.authorAbelev, Betty
dc.contributor.authorAdam, Jaroslav
dc.contributor.authorAdamová, Dagmar
dc.contributor.authorAggarwal, Madan M.
dc.contributor.authorAgnello, Michelangelo
dc.contributor.authorAgostinelli, Andrea
dc.contributor.authorAgrawal, Nikita
dc.contributor.authorAhammed, Zubayer
dc.contributor.authorAhmad, Nazeer
dc.contributor.authorAhmad Masoodi, Arshar
dc.contributor.authorAlme, Johan
dc.contributor.authorErdal, Hege Austrheim
dc.contributor.authorHelstrup, Håvard
dc.contributor.authorHetland, Kristin Fanebust
dc.contributor.authorKileng, Bjarte
dc.contributor.authorAltinpinar, Sedat
dc.contributor.authorDjuvsland, Øystein
dc.contributor.authorFehlker, Dominik
dc.contributor.authorHaaland, Øystein Senneset
dc.contributor.authorHuang, Meidana
dc.contributor.authorLønne, Per-Ivar
dc.contributor.authorNystrand, Joakim
dc.contributor.authorRehman, Attiq ur
dc.contributor.authorRøhrich, Dieter
dc.contributor.authorSkjerdal, Kyrre
dc.contributor.authorUllaland, Kjetil
dc.contributor.authorVelure, Arild
dc.contributor.authorWagner, Boris
dc.contributor.authorYang, Shiming
dc.contributor.authorArsene, Ionut Christian
dc.contributor.authorBätzing, Paul Christoph
dc.contributor.authorDordic, Olja
dc.contributor.authorLindal, Svein
dc.contributor.authorMilosevic, Jovan
dc.contributor.authorQvigstad, Henrik
dc.contributor.authorRichter, Matthias Rudolph
dc.contributor.authorRøed, Ketil
dc.contributor.authorSkaali, Toralf Bernhard
dc.contributor.authorTveter, Trine Spedstad
dc.contributor.authorWikne, Jon Christopher
dc.contributor.authorZhao, Chengxin
dc.contributor.authorLangøy, Rune
dc.contributor.authorLien, Jørgen André
dc.contributor.authorAhmed, Ijaz
dc.contributor.authorAhn, Sang Un
dc.contributor.authorAhn, Sul-Ah
dc.contributor.authorAimo, Ilaria
dc.contributor.authorAiola, Salvatore
dc.contributor.authorAjaz, Muhammad
dc.contributor.authorAkindinov, Alexander
dc.contributor.authorALICE, Collaboration
dc.PublishedAbelev B, Adam J, Adamová D, Aggarwal MM, Agnello M, Agostinelli A, Agrawal N, Ahammed Z, Ahmad N, Ahmad Masoodi A, Alme J, Erdal HA, Helstrup H, Hetland KF, Kileng B, Altinpinar S, Djuvsland Ø, Fehlker D, Haaland ØS, Huang M, Lønne P, Nystrand J, Rehman Au, Røhrich D, Skjerdal K, Ullaland K, Velure A, Wagner B, Yang S, Arsene IC, Bätzing P, Dordic O, Lindal S, Milosevic J, Qvigstad H, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Langøy R, Lien JA, Ahmed I, Ahn SU, Ahn S, Aimo I, Aiola S, Ajaz M, Akindinov A, ALICE C. K∗(892)0 and ϕ(1020) production in Pb-Pb collisions at sNN√=2.76 TeV. Physical Review C. Nuclear Physics. 2015;91:024609eng
dc.description.abstractThe yields of the K*(892)\)^0\) and \(\Phi\)(1020) resonances are measured in Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeV through their hadronic decays using the ALICE detector. The measurements are performed in multiple centrality intervals at mid-rapidity (|y|<0.5) in the transverse-momentum ranges 0.3 < \(p_T\) < 5 GeV/c for the K*(892)\(^0\) and 0.5 < \(p_T\) < 5 GeV/c for the \(\Phi\)(1020). The yields of K*(892)\(^0\) are suppressed in central Pb-Pb collisions with respect to pp and peripheral Pb-Pb collisions. This suppression is discussed in a scenario in which the K*(892)\(^0\) decays during the evolution of the fireball and the decay products scatter, thus escaping detection through invariant-mass reconstruction. In contrast, the \(\Phi\)(1020) meson, due to its long lifetime, decays outside the fireball. These particles are also used as probes to study the mechanisms of particle production. The shape of the pt distribution of the \(\Phi\)(1020) meson, but not its yield, is reproduced fairly well by hydrodynamical models for central Pb-Pb collisions. In central Pb-Pb collisions at low and intermediate \(p_T\), the p/\(Phi\)(1020) ratio is flat in \(p_T\), while the p/\(pi)\) and \(\Phi\)(1020)/\)\pi\) ratios show a pronounced increase and have similar shapes to each other. These results indicate that the shapes of the \(p_T\) distributions of these particles in central Pb-Pb collisions are determined predominantly by the particle masses and radial flow. Finally, \(\Phi\)(1020) production in Pb-Pb collisions is enhanced, with respect to the yield in pp collisions and the yield of charged pions, by an amount similar to the \(\Lambda\) and \(\Xi\),en_US
dc.publisherAmerican Physical Societyen_US
dc.rightsAttribution CC BYeng
dc.titleK*(892)\(^0\) and \(\Phi\)(1020) production in Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeVen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright 2015 CERN, for the ALICE Collaborationen_US
dc.source.journalPhysical Review C. Nuclear Physics
dc.relation.projectNorges forskningsråd: 217288
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431

Files in this item


This item appears in the following Collection(s)

Show simple item record

Attribution CC BY
Except where otherwise noted, this item's license is described as Attribution CC BY