Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at √sNN=5.02 TeV

被引:90
作者
Adam, J. [46 ]
Adamova, D. [95 ]
Aggarwal, M. M. [99 ]
Rinella, G. Aglieri [42 ]
Agnello, M. [37 ,121 ]
Agrawal, N. [55 ]
Ahammed, Z. [146 ]
Ahmad, S. [22 ]
Ahn, S. U. [78 ]
Aiola, S. [150 ]
Akindinov, A. [62 ]
Alam, S. N. [146 ]
Albuquerque, D. S. D. [132 ]
Aleksandrov, D. [91 ]
Alessandro, B. [121 ]
Alexandre, D. [112 ]
Alfaro Molina, R. [72 ]
Alici, A. [15 ,16 ,115 ]
Alkin, A. [3 ,4 ]
Alme, J. [26 ,44 ]
Alt, T. [49 ]
Altinpinar, S. [26 ]
Altsybeev, I. [145 ]
Alves Garcia Prado, C. [131 ]
An, M. [9 ]
Andrei, C. [89 ]
Andrews, H. A. [112 ]
Andronic, A. [108 ]
Anguelov, V. [104 ]
Anson, C. [98 ]
Anticic, T. [109 ]
Antinori, F. [118 ]
Antonioli, P. [115 ]
Anwar, R. [134 ]
Aphecetche, L. [124 ]
Appelshaeuser, H. [68 ]
Arcelli, S. [32 ]
Arnaldi, R. [121 ]
Arnold, O. W. [43 ,105 ]
Arsene, I. C. [25 ]
Arslandok, M. [68 ]
Audurier, B. [124 ]
Augustinus, A. [42 ]
Averbeck, R. [121 ]
Azmi, M. D. [22 ]
Badala, A. [117 ]
Baek, Y. W. [77 ]
Bagnasco, S. [121 ]
Bailhache, R. [68 ]
Bala, R. [101 ]
机构
[1] Yerevan Phys Inst, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia
[2] Benemerita Univ Autonoma Puebla, Puebla, Mexico
[3] Bogolyubov Inst Theoret Phys, Kiev, Ukraine
[4] Bogolyubov Inst Theoret Phys, Kiev, Ukraine
[5] Bose Inst, Dept Phys, Kolkata, India
[6] CAPSS, Kolkata, India
[7] Budker Inst Nucl Phys, Novosibirsk, Russia
[8] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA
[9] Cent China Normal Univ, Wuhan, Hubei, Peoples R China
[10] Ctr Calcul lIN2P3, Lyon, France
[11] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba
[12] Ctr Invest Energet Medioambient & Tecn CIEMAT, Madrid, Spain
[13] Ctr Invest Estudios Avanzados CINVESTAV, Mexico City, DF, Mexico
[14] Ctr Invest Estudios Avanzados CINVESTAV, Merida, Mexico
[15] Museo Storo Fis, Ctr Fermi, Rome, Italy
[16] Ctr Ric Enrico Fermi, Rome, Italy
[17] Chicago State Univ, Chicago, IL USA
[18] China Inst Atom Energy, Beijing, Peoples R China
[19] CIIT Ctr Hlth Res, Islamabad, Pakistan
[20] Univ Santiago Compostela, Dept Fis Particulas, Santiago De Compostela, Spain
[21] Univ Santiago Compostela, IGFAE, Santiago De Compostela, Spain
[22] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India
[23] Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA
[24] Sejong Univ, Dept Phys, Seoul, South Korea
[25] Univ Oslo, Dept Phys, Oslo, Norway
[26] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[27] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy
[28] Sezione Ist Nazl Fis Nucl, Rome, Italy
[29] Univ & Sez INFN, Dipartimento Fis, Cagliari, Italy
[30] Univ & Sez INFN, Dipartimento Fis, Trieste, Italy
[31] Univ & Sez INFN, Dipartimento Fis, Turin, Italy
[32] Univ & Sez INFN, Dipartimento Fis & Astron, Bologna, Italy
[33] Univ & Sez INFN, Dipartimento Fis & Astron, Catania, Italy
[34] Univ & Sez INFN, Dipartimento Fis & Astron, Padua, Italy
[35] ER Caianiello Univ, Dipartimento Fis, Salerno, Italy
[36] Grp Collegato INFN, Salerno, Italy
[37] Politecn & Sez INFN, Dipartimento DISAT, Turin, Italy
[38] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy
[39] INFN Sez Torino, Alessandria, Italy
[40] M Merlin & Sez INFN, Dipartimento Interateneo Fis, Bari, Italy
[41] Lund Univ, Div Expt High Energy Phys, Lund, Sweden
[42] CERN, European Org Nucl Res, Geneva, Switzerland
[43] Tech Univ Munich, Excellence Cluster Universe, Munich, Germany
[44] Bergen Univ Coll, Fac Engn, Bergen, Norway
[45] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia
[46] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic
[47] Safarik Univ, Fac Sci, Kosice, Slovakia
[48] Buskerud & Vestfold Univ Coll, Fac Technol, Tonsberg, Norway
[49] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany
[50] Gangneung Wonju Natl Univ, Kangnung, South Korea
基金
美国能源部; 新加坡国家研究基金会; 美国国家科学基金会; 瑞典研究理事会; 中国国家自然科学基金; 巴西圣保罗研究基金会; 英国科学技术设施理事会;
关键词
COLOR GLASS CONDENSATE; QUARK-GLUON PLASMA; MULTIPLICITY; PERSPECTIVE; MODEL; PA; PP;
D O I
10.1016/j.physletb.2017.07.017
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the charged-particle pseudorapidity density in Pb-Pb collisions at root s(NN) = 5.02 TeV in centrality classes measured by ALICE. The measurement covers a wide pseudorapidity range from -3.5 to 5, which is sufficient for reliable estimates of the total number of charged particles produced in the collisions. For the most central (0-5%) collisions we find 21 400 +/- 1 300, while for the most peripheral (80-90%) we find 230 +/- 38. This corresponds to an increase of (27 +/- 4)% over the results at root s(NN) = 2.76 TeV previously reported by ALICE. The energy dependence of the total number of charged particles produced in heavy-ion collisions is found to obey a modified power-law like behaviour. The charged-particle pseudorapidity density of the most central collisions is compared to model calculations-none of which fully describes the measured distribution. We also present an estimate of the rapidity density of charged particles. The width of that distribution is found to exhibit a remarkable proportionality to the beam rapidity, independent of the collision energy from the top SPS to LHC energies. (C) 2017 The Author(s). Published by Elsevier B.V.
引用
收藏
页码:567 / 577
页数:11
相关论文
共 35 条
[1]   Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at √sNN=2.76 TeV [J].
Aamodt, K. ;
Quintana, A. Abrahantes ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agocs, A. G. ;
Salazar, S. Aguilar ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahn, S. U. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alfaro Molina, R. ;
Alici, A. ;
Alkin, A. ;
Avina, E. Almaraz ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anson, C. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Arend, A. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Asryan, A. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Aysto, J. ;
Azmi, M. D. ;
Bach, M. ;
Badala, A. ;
Baek, Y. W. ;
Bagnasco, S. ;
Bailhache, R. .
PHYSICAL REVIEW LETTERS, 2011, 106 (03)
[2]   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
[3]   Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at √sNN=2.76 TeV [J].
Abbas, E. ;
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agocs, A. G. ;
Agostinelli, A. ;
Ahammed, Z. ;
Masoodi, A. Ahmad ;
Ahmad, N. ;
Ahn, S. U. ;
Ahn, S. A. ;
Aimo, I. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alici, A. ;
Alkin, A. ;
Almaraz Avina, E. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anson, C. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Arend, A. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Asryan, A. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. .
PHYSICS LETTERS B, 2013, 726 (4-5) :610-622
[4]   Performance of the ALICE experiment at the CERN LHC [J].
Abelev, B. ;
Abramyan, A. ;
Adam, J. ;
Adamova, D. ;
Aggarwal, M. M. ;
Agnello, M. ;
Agostinelli, A. ;
Agrawal, N. ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahmed, I. ;
Ahn, S. U. ;
Ahn, S. A. ;
Aimo, I. ;
Aiola, S. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alexandre, D. ;
Alici, A. ;
Alkin, A. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Prado, C. Alves Garcia ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Azmi, M. D. ;
Bach, M. .
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2014, 29 (24)
[5]   Centrality, rapidity and transverse momentum dependence of J/Ψ suppression in Pb-Pb collisions at √SNN=2.76TeV [J].
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agocs, A. G. ;
Agostinelliz, A. ;
Agrawal, N. ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahmed, I. ;
Ahn, S. U. ;
Ahn, S. A. ;
Aimo, I. ;
Aiola, S. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alexandre, D. ;
Alici, A. ;
Alkin, A. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Prado, C. Alves Garcia ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshauser, H. ;
Arborbr, N. ;
Arcelli, S. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Azmi, M. D. .
PHYSICS LETTERS B, 2014, 734 :314-327
[6]   KS0 and Λ Production in Pb-Pb Collisions at √sNN=2: 76 TeV [J].
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agocs, A. G. ;
Agostinelli, A. ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahmed, I. ;
Ahn, S. U. ;
Ahn, S. A. ;
Aimo, I. ;
Aiola, S. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alexandre, D. ;
Alici, A. ;
Alkin, A. ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Alves Garcia Prado, C. ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Azmi, M. D. .
PHYSICAL REVIEW LETTERS, 2013, 111 (22)
[7]   Centrality determination of Pb-Pb collisions at √sNN=2.76 TeV with ALICE [J].
Abelev, B. ;
Adam, J. ;
Adamova, D. ;
Adare, A. M. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agocs, A. G. ;
Agostinelli, A. ;
Ahammed, Z. ;
Ahmad, N. ;
Masoodi, A. Ahmad ;
Ahn, S. U. ;
Ahn, S. A. ;
Ajaz, M. ;
Akindinov, A. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alici, A. ;
Alkin, A. ;
Avina, E. Almaraz ;
Alme, J. ;
Alt, T. ;
Altini, V. ;
Altinpinar, S. ;
Altsybeev, I. ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anson, C. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshaeuser, H. ;
Arbor, N. ;
Arcelli, S. ;
Arend, A. ;
Armesto, N. ;
Arnaldi, R. ;
Aronsson, T. ;
Arsene, I. C. ;
Arslandok, M. ;
Asryan, A. ;
Augustinus, A. ;
Averbeck, R. ;
Awes, T. C. ;
Aeystoe, J. ;
Azmi, M. D. .
PHYSICAL REVIEW C, 2013, 88 (04)
[8]   Scaling of charged particle multiplicity in Pb-Pb collisions at SPS energies [J].
Abreu, MC ;
Alessandro, B ;
Alexa, C ;
Arnaldi, R ;
Atayan, M ;
Baglin, C ;
Baldit, A ;
Bedjidian, M ;
Beolè, S ;
Boldea, V ;
Bordalo, P ;
Borges, G ;
Bussière, A ;
Capelli, L ;
Castanier, C ;
Castor, J ;
Chaurand, B ;
Chevrot, I ;
Cheynis, B ;
Chiavassa, E ;
Cicalò, C ;
Claudino, T ;
Comets, MP ;
Constans, N ;
Constantinescu, S ;
Cortese, P ;
De Falco, A ;
De Marco, N ;
Dellacasa, G ;
Devaux, A ;
Dita, S ;
Drapier, O ;
Ducroux, L ;
Espagnon, B ;
Fargeix, J ;
Force, P ;
Gallio, M ;
Gavrilov, YK ;
Gerschel, C ;
Giubellino, P ;
Golubeva, MB ;
Gonin, M ;
Grigorian, AA ;
Grigorian, S ;
Grossiord, JY ;
Guber, FF ;
Guichard, A ;
Gulkanyan, H ;
Hakobyan, R ;
Haroutunian, R .
PHYSICS LETTERS B, 2002, 530 (1-4) :43-55
[9]  
Adam J, 2016, PHYS REV LETT, V116, DOI [10.1103/PhysRevLett.116.222302, 10.1103/PhysRevLett.116.241103]
[10]   Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb-Pb collisions at √sNN=2.76TeV [J].
Adam, J. ;
Adamova, D. ;
Aggarwal, M. M. ;
Rinella, G. Aglieri ;
Agnello, M. ;
Agrawal, N. ;
Ahammed, Z. ;
Ahn, S. U. ;
Aiola, S. ;
Akindinov, A. ;
Alam, S. N. ;
Aleksandrov, D. ;
Alessandro, B. ;
Alexandre, D. ;
Molina, R. Alfaro ;
Alici, A. ;
Alkin, A. ;
Almaraz, J. R. M. ;
Alme, J. ;
Alt, T. ;
Altinpinar, S. ;
Altsybeev, I. ;
Prado, C. Alves Garcia ;
Andrei, C. ;
Andronic, A. ;
Anguelov, V. ;
Anielski, J. ;
Anticic, T. ;
Antinori, F. ;
Antonioli, P. ;
Aphecetche, L. ;
Appelshauser, H. ;
Arcelli, S. ;
Arnaldi, R. ;
Arnold, O. W. ;
Arsene, I. C. ;
Arslandok, M. ;
Audurier, B. ;
Augustinus, A. ;
Averbeck, R. ;
Azmi, M. D. ;
Badala, A. ;
Baek, Y. W. ;
Bagnasco, S. ;
Bailhache, R. ;
Bala, R. ;
Baldisseri, A. ;
Baral, R. C. ;
Barbano, A. M. ;
Barbera, R. .
PHYSICS LETTERS B, 2016, 754 :373-385