Phi meson production at forward rapidity in Pb\u2013Pb collisions at sqrt{s_mathrm {NN}}=2.76\xa0TeV

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Sahoo,P Kurashvili,J De Cuveland,P K Sahu,J Rak,A Jusko,A Feliciello,R Tieulent,A De Falco,Y Sibiriak,A Liu,R Vértesi,F Manso,D Mal’Kevich,H Pereira Da Costa,L Boldizsár,M B Jadhav,E Perez Lezama,M A S Figueredo,C Lagana Fernandes,A Harton,L Cunqueiro,I Cortés Maldonado,B Kim,M R Haque,C Bourjau,V Zaccolo,C Roy,J Ghosh,L Altenkamper,O Karavichev,A Chauvin,D Rathee,N Zhigareva,A Dobrin,S Gorbunov,A Di Mauro,V Yurchenko,J Kim,P Giubellino,V Manzari,D Das,S M Mahmood,T B Skaali,A G Knospe,A Tumkin,A Kisiel,J Jadlovsky,C M Mitu,D Berzano,D Stocco,J Wikne,C J Myers,S Bufalino,A Borissov,J Schukraft,L Cifarelli,M Floris,K Schweda,F Thoresen,F Erhardt,H Natal Da Luz,Y Ding,N Mohammadi,H Buesching,H Pei,M Ippolitov,M Krzewicki,P C Batzing,R Gupta,S Evdokimov,A Khuntia,T Tsuji,Z Khabanova,I Sputowska,K Garg,E Meninno,M Bombara,T Gunji,E Fragiacomo,A Telesca,B Mohanty,P Sahoo,M R Cosentino,R J Ehlers,A Uras,R Barbera,J Mazer,S R Navarro,B Polichtchouk,R Bellwied,C Garabatos,P Ghosh,F Ng,A Mamonov,J T Buxton,U Frankenfeld,N Bianchi,I.-K Yoo,N Sarkar,S W Lindsay,A A P Suaide,D A Moreira De Godoy,G De Cataldo,J W Harris,G Scioli,S Vergara Limón,A Mastroserio,F Scarlassara,J Otwinowski,H Oh,V Pacik,S Kundu,U Kebschull,B Alessandro,W Riegler,A C Oliveira Da Silva,R Singaraju,R A Negrao De Oliveira,M Wang,D M Goméz Coral,P G Jones,I Stan,R Keidel,D Finogeev,D Pagano,D Sekihata,A Bilandzic,J Vrláková,B Espagnon,M Arslandok,A M Kubera,C Ristea,M Meres,R Biswas,E Botta,J Figiel,A Zarochentsev,C H Christensen,M Chojnacki,J Niedziela,D Andreou,M Fusco Girard,T J Humanic,M Faggin,K Yamakawa,S Biswas,S Raha

doi:10.1140/epjc/s10052-018-6034-3

Abstract

phi meson measurements provide insight into strangeness production, which is one of the key observables for the hot medium formed in high-energy heavy-ion collisions. ALICE measured phi production through its decay in muon pairs in Pb–Pb collisions at sqrt{s_mathrm {NN}} = 2.76 TeV in the intermediate transverse momentum range 2< p_mathrm {T}< 5 GeV/c and in the rapidity interval 2.5<y<4. The phi yield was measured as a function of the transverse momentum and collision centrality. The nuclear modification factor was obtained as a function of the average number of participating nucleons. Results were compared with the ones obtained via the kaon decay channel in the same p_mathrm {T} range at midrapidity. The values of the nuclear modification factor in the two rapidity regions are in agreement within uncertainties.

Highlights

At small values of the baryochemical potential and at extreme high temperatures, Quantum Chromodynamics (QCD) predicts chiral and deconfinement crossover transitions from hadronic matter to a state of strongly interacting medium, where dominant degrees of freedom are gluons and light quarks (Quark-Gluon Plasma, QGP)
The φ meson may be sensitive to chiral symmetry restoration [8,9,10], that could be observed by measuring a mass shift of a few MeV/c2 or a broadening of the spectral function of the hadronic resonances up to several times their PDG value [11,12,13,14]
The analysis presented in this paper is based on the data s√amsNpNle=co2l.l7ec6teTdeVb.y ALICE in 2011 during the Pb–Pb run at The minimum bias (MB) trigger is defined as the coincidence of a signal in V0A and V0C, synchronized with the passage of two colliding lead bunches

Summary

Introduction

At small values of the baryochemical potential and at extreme high temperatures, Quantum Chromodynamics (QCD) predicts chiral and deconfinement crossover transitions from hadronic matter to a state of strongly interacting medium, where dominant degrees of freedom are gluons and light quarks (Quark-Gluon Plasma, QGP). The raw number of φ mesons decaying into muon pairs Nφraw and the φ yield dN /dy in the range 2 < pT < 5 GeV/c are reported in Table 2 for the centrality classes considered in this analysis.

Results

Conclusion