Elliptic Flow of Charged Particles in Pb-Pb Collisions at √sNN=2.76 TeV

被引：685

作者：

Aamodt, K. ^{[1
]}

Abelev, B. ^{[2
]}

Abrahantes Quintana, A. ^{[3
]}

Adamova, D. ^{[4
]}

Adare, A. M. ^{[5
]}

Aggarwal, M. M. ^{[6
]}

Rinella, G. Aglieri ^{[7
]}

Agocs, A. G. ^{[8
]}

Aguilar Salazar, S. ^{[9
]}

Ahammed, Z. ^{[10
]}

Masoodi, A. Ahmad ^{[11
]}

Ahmad, N. ^{[11
]}

Ahn, S. U. ^{[12
,44
]}

Akindinov, A. ^{[13
]}

Aleksandrov, D. ^{[14
]}

Alessandro, B. ^{[15
]}

Alfaro Molina, R. ^{[9
]}

Alici, A. ^{[16
,17
]}

Alkin, A.

Almaraz Avina, E. ^{[9
]}

Alt, T. ^{[19
]}

Altini, V. ^{[20
,21
]}

Altinpinar, S. ^{[22
,23
]}

Altsybeev, I. ^{[24
]}

Andrei, C. ^{[25
]}

Andronic, A. ^{[22
,23
]}

Anguelov, V. ^{[26
]}

Anson, C. ^{[27
]}

Anticic, T. ^{[28
]}

Antinori, F. ^{[29
,30
]}

Antonioli, P. ^{[17
]}

Aphecetche, L. ^{[31
]}

H. Appelshaeuser ^{[32
]}

Arbor, N. ^{[33
]}

Arcelli, S. ^{[16
,17
]}

Arend, A. ^{[32
]}

Armesto, N. ^{[34
,35
]}

Arnaldi, R. ^{[15
]}

Aronsson, T. ^{[5
]}

Arsene, I. C. ^{[22
,23
]}

Asryan, A. ^{[24
]}

Augustinus, A. ^{[7
]}

Averbeck, R. ^{[22
,23
]}

Awes, T. C. ^{[36
]}

Aysto, J. ^{[37
,38
]}

Azmi, M. D. ^{[11
]}

Bach, M. ^{[19
]}

Badala, A. ^{[39
]}

Baek, Y. W. ^{[12
]}

Bagnasco, S. ^{[15
]}

机构：

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

[2] Lawrence Livermore Natl Lab, Livermore, CA USA

[3] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba

[4] Acad Sci Czech Republ, Inst Nucl Phys, CZ-25068 Rez, Czech Republic

[5] Yale Univ, New Haven, CT USA

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

[7] European Org Nucl Res CERN, Geneva, Switzerland

[8] Hungarian Acad Sci, KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary

[9] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

[10] Ctr Variable Energy Cyclotron, Kolkata, India

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

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

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

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

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

[16] Univ Bologna, Dipartimento Fis, Bologna, Italy

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

[18] Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[19] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany

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

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

[22] GSI Helmholtzzentrum Schwerionenforsch, Div Res, Darmstadt, Germany

[23] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany

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

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

[26] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany

[27] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[28] Rudjer Boskovic Inst, Zagreb, Croatia

[29] Univ Padua, Dipartimento Fis, Padua, Italy

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

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

[32] Goethe Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany

[33] Univ Grenoble 1, LPSC, CNRS IN2P3, Inst Polytech Grenoble, Grenoble, France

[34] Univ Santiago de Compostela, Dept Fis Particules, Santiago De Compostela, Spain

[35] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain

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

[37] Helsinki Inst Phys, Jyvaskyla, Finland

[38] Univ Jyvaskyla, Jyvaskyla, Finland

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

[40] Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy

[41] Ctr Studi & Ric, Ctr Fermi, Rome, Italy

[42] Museo Stor Fis Enrico Fermi, Rome, Italy

[43] IRFU, CEA, Saclay, France

[44] Univ Blaise Pascal, Phys Corpusculaire Lab, Clermont Univ, CNRS IN2P3, Clermont Ferrand, France

[45] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia

[46] Univ Catania, Dipartimento Fis & Astron, Catania, Italy

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

[48] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland

[49] Univ Munster, Inst Kernphys, D-4400 Munster, Germany

[50] Joint Inst Nucl Res, Dubna, Russia

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 25期

基金：

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

关键词：

QUARK-GLUON PLASMA; PLUS AU COLLISIONS; ANISOTROPIC FLOW; PERSPECTIVE; MATTER; LIMIT;

D O I：

10.1103/PhysRevLett.105.252302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurement of charged particle elliptic flow in Pb-Pb collisions at root s(NN) p = 2.76 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurement is performed in the central pseudorapidity region (vertical bar eta vertical bar < 0.8) and transverse momentum range 0.2 < p(t) < 5.0 GeV/c. The elliptic flow signal v(2), measured using the 4-particle correlation method, averaged over transverse momentum and pseudorapidity is 0.087 +/- 0.002(stat) +/- 0.003(syst) in the 40%-50% centrality class. The differential elliptic flow v(2)(p(t)) reaches a maximum of 0.2 near p(t) = 3 GeV/c. Compared to RHIC Au-Au collisions at root s(NN) = 200 GeV, the elliptic flow increases by about 30%. Some hydrodynamic model predictions which include viscous corrections are in agreement with the observed increase.

引用

页数：11

共 45 条

[1] The ALICE experiment at the CERN LHC [J].

Aamodt, K. ;

Quintana, A. Abrahantes ;

Achenbach, R. ;

Acounis, S. ;

Adamova, D. ;

Adler, C. ;

Aggarwal, M. ;

Agnese, F. ;

Rinella, G. Aglieri ;

Ahammed, Z. ;

Ahmad, A. ;

Ahmad, N. ;

Ahmad, S. ;

Akindinov, A. ;

Akishin, P. ;

Aleksandrov, D. ;

Alessandro, B. ;

Alfaro, R. ;

Alfarone, G. ;

Alici, A. ;

Alme, J. ;

Alt, T. ;

Altinpinar, S. ;

Amend, W. ;

Andrei, C. ;

Andres, Y. ;

Andronic, A. ;

Anelli, G. ;

Anfreville, M. ;

Angelov, V. ;

Anzo, A. ;

Anson, C. ;

Anticic, T. ;

Antonenko, V. ;

Antonczyk, D. ;

Antinori, F. ;

Antinori, S. ;

Antonioli, P. ;

Aphecetche, L. ;

Appelshaeuser, H. ;

Aprodu, V. ;

Arba, M. ;

Arcelli, S. ;

Argentieri, A. ;

Armesto, N. ;

Arnaldi, R. ;

Arefiev, A. ;

Arsene, I. ;

Asryan, A. ;

Augustinus, A. .

JOURNAL OF INSTRUMENTATION, 2008, 3

[2] Centrality dependence of charged hadron and strange hadron elliptic flow from √sNN=200 GeVAu+Au collisions [J].

Abelev, B. I. ;

Aggarwal, M. M. ;

Ahammed, Z. ;

Anderson, B. D. ;

Arkhipkin, D. ;

Averichev, G. S. ;

Bai, Y. ;

Balewski, J. ;

Barannikova, O. ;

Barnby, L. S. ;

Baudot, J. ;

Baumgart, S. ;

Beavis, D. R. ;

Bellwied, R. ;

Benedosso, F. ;

Betts, R. R. ;

Bhardwaj, S. ;

Bhasin, A. ;

Bhati, A. K. ;

Bichsel, H. ;

Bielcik, J. ;

Bielcikova, J. ;

Bland, L. C. ;

Bombara, M. ;

Bonner, B. E. ;

Botje, M. ;

Braidot, E. ;

Brandin, A. V. ;

Bueltmann, S. ;

Burton, T. P. ;

Bystersky, M. ;

Cai, X. Z. ;

Caines, H. ;

Sanchez, M. Calderon de la Barca ;

Callner, J. ;

Catu, O. ;

Cebra, D. ;

Cervantes, M. C. ;

Chajecki, Z. ;

Chaloupka, P. ;

Chattopadhyay, S. ;

Chen, H. F. ;

Chen, J. H. ;

Chen, J. Y. ;

Cheng, J. ;

Cherney, M. ;

Chikanian, A. ;

Choi, K. E. ;

Christie, W. ;

Chung, S. U. .

PHYSICAL REVIEW C, 2008, 77 (05)

[3] Elliptic flow in Au plus Au collisions at √sNN=130 GeV [J].

Ackermann, KH ;

Adams, N ;

Adler, C ;

Ahammed, Z ;

Ahmad, S ;

Allgower, C ;

Amsbaugh, J ;

Anderson, M ;

Anderssen, E ;

Arnesen, H ;

Arnold, L ;

Averichev, GS ;

Baldwin, A ;

Balewski, J ;

Barannikova, O ;

Barnby, LS ;

Baudot, J ;

Beddo, M ;

Bekele, S ;

Belaga, VV ;

Bellwied, R ;

Bennett, S ;

Bercovitz, J ;

Berger, J ;

Betts, W ;

Bichsel, H ;

Bieser, F ;

Bland, LC ;

Bloomer, M ;

Blyth, CO ;

Boehm, J ;

Bonner, BE ;

Bonnet, D ;

Bossingham, R ;

Botlo, M ;

Boucham, A ;

Bouillo, N ;

Bouvier, S ;

Bradley, K ;

Brady, FP ;

Braithwaite, ES ;

Braithwaite, W ;

Brandin, A ;

Brown, RL ;

Brugalette, G ;

Byrd, C ;

Caines, H ;

Sánchez, MCD ;

Cardenas, A ;

Carr, L .

PHYSICAL REVIEW LETTERS, 2001, 86 (03) :402-407

[4] Azimuthal anisotropy and correlations at large transverse momenta in p+p and Au+Au collisions at √sNN=200 GeV -: art. no. 252301 [J].

Adams, J ;

Aggarwal, MM ;

Ahammed, Z ;

Amonett, J ;

Anderson, BD ;

Arkhipkin, D ;

Averichev, GS ;

Badyal, SK ;

Bai, Y ;

Balewski, J ;

Barannikova, O ;

Barnby, LS ;

Baudot, J ;

Bekele, S ;

Belaga, VV ;

Bellwied, R ;

Berger, J ;

Bezverkhny, BI ;

Bharadwaj, S ;

Bhasin, A ;

Bhati, AK ;

Bhatia, VS ;

Bichsel, H ;

Billmeier, A ;

Bland, LC ;

Blyth, CO ;

Bonner, BE ;

Botje, M ;

Boucham, A ;

Brandin, AV ;

Bravar, A ;

Bystersky, M ;

Cadman, RV ;

Cai, XZ ;

Caines, H ;

Sánchez, MCD ;

Carroll, J ;

Castillo, J ;

Cebra, D ;

Chajecki, Z ;

Chaloupka, P ;

Chattopdhyay, S ;

Chen, HF ;

Chen, Y ;

Cheng, J ;

Cherney, M ;

Chikanian, A ;

Christie, W ;

Coffin, JP ;

Cormier, TM .

PHYSICAL REVIEW LETTERS, 2004, 93 (25)

[5] Experimental and theoretical challenges in the search for the quark-gluon plasma:: The STAR Collaboration's critical assessment of the evidence from RHIC collisions [J].

Adams, J ;

Aggarwal, MM ;

Ahammed, Z ;

Amonett, J ;

Anderson, BD ;

Arkhipkin, D ;

Averichev, GS ;

Badyal, SK ;

Bai, Y ;

Balewski, J ;

Barannikova, O ;

Barnby, LS ;

Baudot, J ;

Bekele, S ;

Belaga, VV ;

Bellingeri-Laurikainen, A ;

Bellwied, R ;

Berger, J ;

Bezverkhny, BI ;

Bharadwaj, S ;

Bhasin, A ;

Bhati, AK ;

Bhatia, VS ;

Bichsel, H ;

Bielcik, J ;

Bielcikova, J ;

Billmeier, A ;

Bland, LC ;

Blyth, CO ;

Bonner, BE ;

Botje, M ;

Boucham, A ;

Bouchet, J ;

Brandin, AV ;

Bravar, A ;

Bystersky, M ;

Cadman, RV ;

Cai, XZ ;

Caines, H ;

Sánchez, MCD ;

Castillo, J ;

Catu, O ;

Cebra, D ;

Chajecki, Z ;

Chaloupka, P ;

Chattopadhyay, S ;

Chen, HF ;

Chen, Y ;

Cheng, J ;

Cherney, M .

NUCLEAR PHYSICS A, 2005, 757 (1-2) :102-183

[6] Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC:: Experimental evaluation by the PHENIX Collaboration [J].

Adcox, K ;

Adler, SS ;

Afanasiev, S ;

Aidala, C ;

Ajitanand, NN ;

Akiba, Y ;

Al-Jamel, A ;

Alexander, J ;

Amirikas, R ;

Aoki, K ;

Aphecetche, L ;

Arai, Y ;

Armendariz, R ;

Aronson, SH ;

Averbeck, R ;

Awes, TC ;

Azmoun, R ;

Babintsev, V ;

Baldisseri, A ;

Barish, KN ;

Barnes, PD ;

Barrette, J ;

Bassalleck, B ;

Bathe, S ;

Batsouli, S ;

Baublis, V ;

Bauer, F ;

Bazilevsky, A ;

Belikov, S ;

Bellaiche, FG ;

Belyaev, ST ;

Bennett, MJ ;

Berdnikov, Y ;

Bhagavatula, S ;

Bjorndal, MT ;

Boissevain, JG ;

Borel, H ;

Borenstein, S ;

Botelho, S ;

Brooks, ML ;

Brown, DS ;

Bruner, N ;

Bucher, D ;

Buesching, H ;

Bumazhnov, V ;

Bunce, G ;

Burward-Hoy, JM ;

Butsyk, S ;

Camard, X ;

Carey, TA .

NUCLEAR PHYSICS A, 2005, 757 (1-2) :184-283

[7]

Adler C, 2002, PHYS REV C, V66, DOI 10.1103/PhysRevC.66.034904

[8] ALICE:: Physics Performance Report, Volume II [J].

Alessandro, B. ;

Antinori, F. ;

Belikov, J. A. ;

Blume, C. ;

Dainese, A. ;

Foka, P. ;

Giubellino, P. ;

Hippolyte, B. ;

Kuhn, C. ;

Martinez, G. ;

Monteno, M. ;

Morsch, A. ;

Nayak, T. K. ;

Nystrand, J. ;

Noriega, M. Lopez ;

Paic, G. ;

Pluta, J. ;

Ramello, L. ;

Revol, J-P ;

Safarik, K. ;

Schukraft, J. ;

Schutz, Y. ;

Scomparin, E. ;

Snellings, R. ;

Baillie, O. Villalobos ;

Vercellin, E. ;

Cortese, P. ;

Dellacasa, G. ;

Ramello, L. ;

Sitta, M. ;

Ahmad, N. ;

Ahmad, S. ;

Ahmad, T. ;

Bari, W. ;

Irfan, M. ;

Zafar, M. ;

Botje, M. ;

Kuijer, P. G. ;

Snellings, R. ;

Belogianni, A. ;

Christakoglou, P. ;

Ganoti, P. ;

Petridis, A. ;

Roukoutakis, F. ;

Spyropoulou-Stassinaki, M. ;

Vassiliou, M. ;

Bruno, G. E. ;

Cali, I. A. ;

Caselle, M. ;

De Cataldo, G. .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2006, 32 (10) :1295-2040

[9]

*ALICE COLL, ARXIV10113916 ALICE

[10] Excitation function of elliptic flow in Au plus Au collisions and the nuclear matter equation of state [J].

Andronic, A ;

Barret, V ;

Basrak, Z ;

Bastid, N ;

Benabderrahmane, L ;

Berek, G ;

Caplar, R ;

Cordier, E ;

Crochet, P ;

Dupieux, P ;

Dzelalija, M ;

Fodor, Z ;

Gasparic, I ;

Grishkin, Y ;

Hartmann, ON ;

Herrmann, N ;

Hildenbrand, KD ;

Hong, B ;

Kecskemeti, J ;

Kim, YJ ;

Kirejczyk, M ;

Koczon, P ;

Korolija, M ;

Kotte, R ;

Kress, T ;

Lebedev, A ;

Leifels, Y ;

Lopez, X ;

Mangiarotti, A ;

Merschmeyer, M ;

Neubert, W ;

Pelte, D ;

Petrovici, M ;

Rami, F ;

Reisdorf, W ;

de Schauenburg, B ;

Schüttauf, A ;

Seres, Z ;

Sikora, B ;

Sim, KS ;

Simion, V ;

Siwek-Wilczynska, K ;

Smolyankin, V ;

Stockmeier, MR ;

Stoicea, G ;

Tyminski, Z ;

Wagner, P ;

Wisniewski, K ;

Wohlfarth, D ;

Xiao, ZG .

PHYSICS LETTERS B, 2005, 612 (3-4) :173-180

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