K*(892)0 and φ(1020) production in Pb-Pb collisions at √sNN=2.76 TeV

被引：166

作者：

Abelev, B. ^{[1
]}

Adam, J. ^{[2
]}

Adamova, D. ^{[3
]}

Aggarwal, M. M. ^{[4
]}

Agnello, M. ^{[5
]}

Agostinelli, A. ^{[7
,8
]}

Agrawal, N. ^{[9
]}

Ahammed, Z. ^{[10
]}

Ahmad, N. ^{[11
]}

Masoodi, A. Ahmad ^{[11
]}

Ahmed, I. ^{[12
]}

Ahn, S. U. ^{[13
]}

Ahn, S. A. ^{[13
]}

Aimo, I. ^{[5
,6
]}

Aiola, S. ^{[14
]}

Ajaz, M. ^{[12
]}

Akindinov, A. ^{[15
]}

Aleksandrov, D. ^{[16
]}

Alessandro, B. ^{[5
]}

Alexandre, D. ^{[17
]}

Alici, A. ^{[8
,18
,19
]}

Alkin, A. ^{[20
]}

Alme, J. ^{[21
]}

Alt, T. ^{[22
]}

Altini, V. ^{[23
,24
]}

Altinpinar, S. ^{[25
]}

Altsybeev, I. ^{[26
]}

Prado, C. Alves Garcia ^{[27
]}

Andrei, C. ^{[28
]}

Andronic, A. ^{[29
,30
]}

Anguelov, V. ^{[31
]}

Anielski, J. ^{[32
]}

Anticic, T. ^{[33
]}

Antinori, F. ^{[34
]}

Antonioli, P. ^{[8
]}

Aphecetche, L. ^{[35
]}

Appelshaeuser, H. ^{[36
]}

Arbor, N. ^{[37
]}

Arcelli, S. ^{[7
,8
]}

Armesto, N. ^{[38
,39
]}

Arnaldi, R. ^{[5
]}

Aronsson, T. ^{[14
]}

Arsene, I. C. ^{[29
,30
]}

Arslandok, M. ^{[36
]}

Augustinus, A. ^{[40
]}

Averbeck, R. ^{[29
,30
]}

Awes, T. C. ^{[41
]}

Azmi, M. D. ^{[42
]}

Bach, M. ^{[22
]}

Badala, A. ^{[43
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic

[3] Acad Sci Czech Republ, Inst Nucl Phys, Rezu Prahy, Czech Republic

[4] Panjab Univ, Dept Phys, Chandigarh 160014, India

[5] Sezione Ist Nazl Fis Nucl, Turin, Italy

[6] Politecn Torino, Turin, Italy

[7] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[8] Sezione Ist Nazl Fis Nucl, Bologna, Italy

[9] Indian Inst Technol Bombay IIT, Mumbai, Maharashtra, India

[10] Variable Energy Cyclotron Ctr, Kolkata, India

[11] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India

[12] CIIT Ctr Hlth Res, Islamabad, Pakistan

[13] Korea Inst Sci & Technol Informat, Taejon, South Korea

[14] Yale Univ, New Haven, CT USA

[15] Inst Theoret & Expt Phys, Moscow 117259, Russia

[16] Russian Res Ctr, Kurchatov Inst, Moscow, Russia

[17] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[18] Museo Stor Fis, Ctr Fermi, Rome, Italy

[19] Ctr Studi & Ric Enrico Fermi, Rome, Italy

[20] Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[21] Bergen Univ Coll, Fac Engn, Bergen, Norway

[22] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60054 Frankfurt, Germany

[23] Dipartimento Interateneo Fis M Merlin, Bari, Italy

[24] Sezione Ist Nazl Fis Nucl, Bari, Italy

[25] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[26] St Petersburg State Univ, V Fock Inst Phys, St Petersburg 199034, Russia

[27] Univ Sao Paulo, BR-09500900 Sao Paulo, Brazil

[28] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[29] GSI Helmholtzzentrum Schwerionenforsch, Div Res, D-64291 Darmstadt, Germany

[30] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany

[31] Heidelberg Univ, Inst Phys, Heidelberg, Germany

[32] Univ Munster, Inst Kernphys, D-48149 Munster, Germany

[33] Rudjer Boskovic Inst, Zagreb, Croatia

[34] Sezione Ist Nazl Fis Nucl, Padua, Italy

[35] Univ Nantes, Ecole Mines Nantes, SUBATECH, CNRS IN2P3, Nantes, France

[36] Goethe Univ Frankfurt, Inst Kernphys, D-60054 Frankfurt, Germany

[37] Univ Grenoble Alpes, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France

[38] Univ Santiago Compostela, Dept Fis Particulas, Santiago De Compostela, Spain

[39] Univ Santiago Compostela, IGFAE, Santiago De Compostela, Spain

[40] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland

[41] Oak Ridge Natl Lab, Oak Ridge, TN USA

[42] Univ Cape Town, Dept Phys, ZA-7925 Cape Town, South Africa

[43] Sezione Ist Nazl Fis Nucl, Catania, Italy

[44] Univ Blaise Pascal, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France

[45] Gangneung Wonju Natl Univ, Kangnung, South Korea

[46] Univ Jammu, Dept Phys, Jammu 180004, India

[47] IRFU, Commissariat Energie Atom, Saclay, France

[48] Inst Phys, Bhubaneswar 751007, Orissa, India

[49] Dipartimento Fis, I-95129 Catania, Italy

[50] Astron Univ, Catania, Italy

来源：

PHYSICAL REVIEW C | 2015年 / 91卷 / 02期

基金：

瑞典研究理事会; 美国能源部; 欧洲研究理事会; 美国国家科学基金会; 俄罗斯基础研究基金会; 中国国家自然科学基金; 芬兰科学院; 英国科学技术设施理事会; 新加坡国家研究基金会; 巴西圣保罗研究基金会;

关键词：

PHI-MESON PRODUCTION; STRANGE HADRON RESONANCES; FREEZE-OUT; MID-RAPIDITY; QCD; ENHANCEMENT; DEPENDENCE; DYNAMICS; PP;

D O I：

10.1103/PhysRevC.91.024609

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The yields of the K*(892)(0) and phi(1020) resonances are measured in Pb-Pb collisions at root s(NN) = 2.76 TeV through their hadronic decays using the ALICE detector. The measurements are performed in multiple centrality intervals at mid-rapidity (vertical bar y vertical bar < 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 (perhaps due to rescattering of its decay products in the hadronic medium), while the longer-lived phi(1020) meson is not suppressed. 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 hydrodynamic 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.

引用

页数：26

共 106 条

[61] Hadronic freeze-out following a first order hadronization phase transition in ultrarelativistic heavy-ion collisions -: art. no. 021902 [J].

Bass, SA ;

Dumitru, A ;

Bleicher, M ;

Bravina, L ;

Zabrodin, E ;

Stöcker, H ;

Greiner, W .

PHYSICAL REVIEW C, 1999, 60 (02) :5

[62] Chemical equilibrium study in nucleus-nucleus collisions at relativistic energies -: art. no. 024905 [J].

Becattini, F ;

Gazdzicki, M ;

Keränen, A ;

Manninen, J ;

Stock, R .

PHYSICAL REVIEW C, 2004, 69 (02) :249051-2490519

[63] A comparative analysis of statistical hadron production [J].

Becattini, F. ;

Castorina, P. ;

Milov, A. ;

Satz, H. .

EUROPEAN PHYSICAL JOURNAL C, 2010, 66 (3-4) :377-386

[64] REVIEW OF PARTICLE PHYSICS Particle Data Group [J].

Beringer, J. ;

Arguin, J. -F. ;

Barnett, R. M. ;

Copic, K. ;

Dahl, O. ;

Groom, D. E. ;

Lin, C. -J. ;

Lys, J. ;

Murayama, H. ;

Wohl, C. G. ;

Yao, W. -M. ;

Zyla, P. A. ;

Amsler, C. ;

Antonelli, M. ;

Asner, D. M. ;

Baer, H. ;

Band, H. R. ;

Basaglia, T. ;

Bauer, C. W. ;

Beatty, J. J. ;

Belousov, V. I. ;

Bergren, E. ;

Bernardi, G. ;

Bertl, W. ;

Bethke, S. ;

Bichsel, H. ;

Biebel, O. ;

Blucher, E. ;

Blusk, S. ;

Brooijmans, G. ;

Buchmueller, O. ;

Cahn, R. N. ;

Carena, M. ;

Ceccucci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

D'Ambrosio, G. ;

Damour, T. ;

de Florian, D. ;

de Gouvea, A. ;

DeGrand, T. ;

de Jong, P. ;

Dissertori, G. ;

Dobrescu, B. ;

Doser, M. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. .

PHYSICAL REVIEW D, 2012, 86 (01)

[65] Dynamics and freeze-out of hadron resonances at RHIC [J].

Bleicher, M ;

Stöcker, H .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2004, 30 (01) :S111-S118

[66] Strange resonance production: probing chemical and thermal freeze-out in relativistic heavy ion collisions [J].

Bleicher, M ;

Aichelin, J .

PHYSICS LETTERS B, 2002, 530 (1-4) :81-87

[67] Relativistic hadron-hadron collisions in the ultra-relativistic quantum molecular dynamics model [J].

Bleicher, M ;

Zabrodin, E ;

Spieles, C ;

Bass, SA ;

Ernst, C ;

Soff, S ;

Bravina, L ;

Belkacem, M ;

Weber, H ;

Stöcker, H ;

Greiner, W .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1999, 25 (09) :1859-1896

[68] The QCD equation of state with dynamical quarks [J].

Borsanyi, Szabolcs ;

Endrodi, Gergely ;

Fodor, Zoltan ;

Jakovac, Antal ;

Katz, Sandor D. ;

Krieg, Stefan ;

Ratti, Claudia ;

Szabo, Kalman K. .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (11)

[69] Is there still any Tc mystery in lattice QCD? Results with physical masses in the continuum limit III [J].

Borsanyi, Szabolcs ;

Fodor, Zoltan ;

Hoelbling, Christian ;

Katz, Sandor D. ;

Krieg, Stefan ;

Ratti, Claudia ;

Szabo, Kalman K. .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (09)

[70] Particle spectra in Pb-Pb collisions at √sNN=2.76 TeV [J].

Bozek, Piotr ;

Wyskiel-Piekarska, Iwona .

PHYSICAL REVIEW C, 2012, 85 (06)

← 2 3 4 5 6 7 8 9 10 11 →