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Charged hadron multiplicity fluctuations in Au+Au and Cu+Cu collisions from sNN=22.5 to 200 GeV

  • A. Adare
  • , S. S. Adler
  • , S. Afanasiev
  • , C. Aidala
  • , N. N. Ajitanand
  • , Y. Akiba
  • , H. Al-Bataineh
  • , J. Alexander
  • , A. Al-Jamel
  • , K. Aoki
  • , L. Aphecetche
  • , R. Armendariz
  • , S. H. Aronson
  • , J. Asai
  • , E. T. Atomssa
  • , R. Averbeck
  • , T. C. Awes
  • , B. Azmoun
  • , V. Babintsev
  • , G. Baksay
  • L. Baksay, A. Baldisseri, K. N. Barish, P. D. Barnes, B. Bassalleck, S. Bathe, S. Batsouli, V. Baublis, F. Bauer, A. Bazilevsky, S. Belikov, R. Bennett, Y. Berdnikov, A. A. Bickley, M. T. Bjorndal, J. G. Boissevain, H. Borel, K. Boyle, M. L. Brooks, D. S. Brown, N. Bruner, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J. M. Burward-Hoy, S. Butsyk, X. Camard, S. Campbell, J. S. Chai, P. Chand, B. S. Chang, W. C. Chang, J. L. Charvet, S. Chernichenko, J. Chiba, C. Y. Chi, M. Chiu, I. J. Choi, R. K. Choudhury, T. Chujo, P. Chung, A. Churyn, V. Cianciolo, C. R. Cleven, Y. Cobigo, B. A. Cole, M. P. Comets, P. Constantin, M. Csanád, T. Csörgo, J. P. Cussonneau, T. Dahms, K. Das, G. David, F. Deák, M. B. Deaton, K. Dehmelt, H. Delagrange, A. Denisov, D. D'Enterria, A. Deshpande, E. J. Desmond, A. Devismes, O. Dietzsch, A. Dion, M. Donadelli, J. L. Drachenberg, O. Drapier, A. Drees, A. K. Dubey, A. Durum, D. Dutta, V. Dzhordzhadze, Y. V. Efremenko, J. Egdemir, F. Ellinghaus, W. S. Emam, A. Enokizono, H. En'yo, B. Espagnon, S. Esumi, K. O. Eyser, D. E. Fields, C. Finck, M. Finger, M. Finger, F. Fleuret, S. L. Fokin, B. Forestier, B. D. Fox, Z. Fraenkel, J. E. Frantz, A. Franz, A. D. Frawley, K. Fujiwara, Y. Fukao, S. Y. Fung, T. Fusayasu, S. Gadrat, I. Garishvili, F. Gastineau, M. Germain, A. Glenn, H. Gong, M. Gonin, J. Gosset, Y. Goto, R. Granier De Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H. Å Gustafsson, T. Hachiya, A. Hadj Henni, C. Haegemann, J. S. Haggerty, M. N. Hagiwara, H. Hamagaki, R. Han, A. G. Hansen, H. Harada, E. P. Hartouni, K. Haruna, M. Harvey, E. Haslum, K. Hasuko, R. Hayano, M. Heffner, T. K. Hemmick, T. Hester, J. M. Heuser, X. He, P. Hidas, H. Hiejima, J. C. Hill, R. Hobbs, M. Hohlmann, M. Holmes, W. Holzmann, K. Homma, B. Hong, A. Hoover, T. Horaguchi, D. Hornback, M. G. Hur, T. Ichihara, V. V. Ikonnikov, K. Imai, M. Inaba, Y. Inoue, M. Inuzuka, D. Isenhower, L. Isenhower, M. Ishihara, T. Isobe, M. Issah, A. Isupov, B. V. Jacak, J. Jia, J. Jin, O. Jinnouchi, B. M. Johnson, S. C. Johnson, K. S. Joo, D. Jouan, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, M. Kaneta, J. H. Kang, H. Kanou, K. Katou, T. Kawabata, T. Kawagishi, D. Kawall, A. V. Kazantsev, S. Kelly, B. Khachaturov, A. Khanzadeev, J. Kikuchi, D. H. Kim, D. J. Kim, E. Kim, G. B. Kim, H. J. Kim, Y. S. Kim, E. Kinney, A. Kiss, E. Kistenev, A. Kiyomichi, J. Klay, C. Klein-Boesing, H. Kobayashi, L. Kochenda, V. Kochetkov, R. Kohara, B. Komkov, M. Konno, D. Kotchetkov, A. Kozlov, A. Král, A. Kravitz, P. J. Kroon, J. Kubart, C. H. Kuberg, G. J. Kunde, N. Kurihara, K. Kurita, M. J. Kweon, Y. Kwon, G. S. Kyle, R. Lacey, Y. S. Lai, J. G. Lajoie, A. Lebedev, Y. Le Bornec, S. Leckey, D. M. Lee, M. K. Lee, T. Lee, M. J. Leitch, M. A.L. Leite, B. Lenzi, H. Lim, T. Liška, A. Litvinenko, M. X. Liu, X. Li, X. H. Li, B. Love, D. Lynch, C. F. Maguire, Y. I. Makdisi, A. Malakhov, M. D. Malik, V. I. Manko, Y. Mao, G. Martinez, L. Mašek, H. Masui, F. Matathias, T. Matsumoto, M. C. McCain, M. McCumber, P. L. McGaughey, Y. Miake, P. Mikeš, K. Miki, T. E. Miller, A. Milov, S. Mioduszewski, G. C. Mishra, M. Mishra, J. T. Mitchell, M. Mitrovski, A. K. Mohanty, A. Morreale, D. P. Morrison, J. M. Moss, T. V. Moukhanova, D. Mukhopadhyay, M. Muniruzzaman, J. Murata, S. Nagamiya, Y. Nagata, J. L. Nagle, M. Naglis, I. Nakagawa, Y. Nakamiya, T. Nakamura, K. Nakano, J. Newby, M. Nguyen, B. E. Norman, A. S. Nyanin, J. Nystrand, E. O'Brien, S. X. Oda, C. A. Ogilvie, H. Ohnishi, I. D. Ojha, H. Okada, K. Okada, M. Oka, O. O. Omiwade, A. Oskarsson, I. Otterlund, M. Ouchida, K. Oyama, K. Ozawa, R. Pak, D. Pal, A. P.T. Palounek, V. Pantuev, V. Papavassiliou, J. Park, W. J. Park, S. F. Pate, H. Pei, V. Penev, J. C. Peng, H. Pereira, V. Peresedov, D. Yu Peressounko, A. Pierson, C. Pinkenburg, R. P. Pisani, M. L. Purschke, A. K. Purwar, J. M. Qualls, H. Qu, J. Rak, A. Rakotozafindrabe, I. Ravinovich, K. F. Read, S. Rembeczki, M. Reuter, K. Reygers, V. Riabov, Y. Riabov, G. Roche, A. Romana, M. Rosati, S. S.E. Rosendahl, P. Rosnet, P. Rukoyatkin, V. L. Rykov, S. S. Ryu, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, H. Sakata, V. Samsonov, L. Sanfratello, R. Santo, H. D. Sato, S. Sato, S. Sawada, Y. Schutz, J. Seele, R. Seidl, V. Semenov, R. Seto, D. Sharma, T. K. Shea, I. Shein, A. Shevel, T. A. Shibata, K. Shigaki, M. Shimomura, T. Shohjoh, K. Shoji, A. Sickles, C. L. Silva, D. Silvermyr, C. Silvestre, K. S. Sim, C. P. Singh, V. Singh, S. Skutnik, M. Slunečka, W. C. Smith, A. Soldatov, R. A. Soltz, W. E. Sondheim, S. P. Sorensen, I. V. Sourikova, F. Staley, P. W. Stankus, E. Stenlund, M. Stepanov, A. Ster, S. P. Stoll, T. Sugitate, C. Suire, J. P. Sullivan, J. Sziklai, T. Tabaru, S. Takagi, E. M. Takagui, A. Taketani, K. H. Tanaka, Y. Tanaka, K. Tanida, M. J. Tannenbaum, A. Taranenko, P. Tarján, T. L. Thomas, M. Togawa, A. Toia, J. Tojo, L. Tomášek, H. Torii, R. S. Towell, V. N. Tram, I. Tserruya, Y. Tsuchimoto, S. K. Tuli, H. Tydesjö, N. Tyurin, T. J. Uam, C. Vale, H. Valle, H. W. Van Hecke, J. Velkovska, M. Velkovsky, R. Vertesi, V. Veszprémi, A. A. Vinogradov, M. Virius, M. A. Volkov, V. Vrba, E. Vznuzdaev, M. Wagner, D. Walker, X. R. Wang, Y. Watanabe, J. Wessels, S. N. White, N. Willis, D. Winter, F. K. Wohn, C. L. Woody, M. Wysocki, W. Xie, Y. L. Yamaguchi, A. Yanovich, Z. Yasin, J. Ying, S. Yokkaichi, G. R. Young, I. Younus, I. E. Yushmanov, W. A. Zajc, O. Zaudtke, C. Zhang, S. Zhou, J. Zimányi, L. Zolin, X. Zong
  • University of Colorado Boulder
  • Brookhaven National Laboratory
  • Joint Institute for Nuclear Research, Dubna
  • Columbia University
  • Department of and Chemistry
  • Stony Brook University
  • High Energy Accelerator Research Organization (KEK)
  • RIKEN (The Institute of Physical and Chemical Research)
  • Riken BNL Research Center
  • New Mexico State University
  • Kyoto University
  • Université de Nantes
  • Department of Physics and Astronomy
  • Oak Ridge National Laboratory
  • Kurchatov Institute
  • Florida Institute of Technology
  • Institut Pierre Simon Laplace, CNRS and CEA
  • University of California, Riverside
  • MST-8, Los Alamos National Laboratory
  • University of New Mexico
  • University of Münster
  • Petersburg Nuclear Physics Institute (PNPI)
  • Iowa State University
  • St. Petersburg State Polytechnical University
  • Lawrence Livermore National Laboratory
  • KAERI
  • Cyclotron Application Laboratory
  • Bhabha Atomic Research Centre
  • Yonsei University
  • Academia Sinica, Institute Of Physics
  • University of Illinois at Urbana-Champaign
  • Vanderbilt University
  • Georgia State University
  • Université Paris-Saclay
  • Eötvös Loránd University
  • KFKI Research Institute for Particle and Nuclear Physics
  • Wigner Research Centre for Physics
  • Florida State University
  • Abilene Christian University
  • Instituto de Fisica
  • University of São Paulo
  • Weizmann Institute of Science Israel
  • University of Tennessee
  • Hiroshima University
  • Institute of Physics
  • University of Tsukuba
  • Charles University
  • Kurchatov Institute
  • Université Blaise Pascal
  • Nagasaki Institute of Applied Science
  • Center for Nuclear Study
  • University of Tokyo
  • Department of Physics
  • Lund University
  • Tsinghua University
  • Korea University
  • Department of Physics
  • Tokyo Institute of Technology
  • Department of Physics
  • Rikkyo University
  • Myongji University
  • Waseda University
  • System Electronics Laboratory
  • Seoul National University
  • Czech Technical University in Prague
  • Institute of Physics of the Czech Academy of Sciences
  • China Institute of Atomic Energy
  • Department of Physics
  • Banaras Hindu University
  • University of Debrecen

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)

Abstract

A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at sNN=62.4 and 200 GeV, and Cu+Cu collisions at sNN=22.5,62.4, and 200 GeV. Fluctuations are measured as a function of collision centrality, transverse momentum range, and charge sign. After correcting for nondynamical fluctuations due to fluctuations in the collision geometry within a centrality bin, the remaining dynamical fluctuations expressed as the variance normalized by the mean tend to decrease with increasing centrality. The dynamical fluctuations are consistent with or below the expectation from a superposition of participant nucleon-nucleon collisions based upon p+p data, indicating that this dataset does not exhibit evidence of critical behavior in terms of the compressibility of the system. A comparison of the data with a model where hadrons are independently emitted from a number of hadron clusters suggests that the mean number of hadrons per cluster is small in heavy ion collisions.

Original languageEnglish
Article number044902
JournalPhysical Review C - Nuclear Physics
Volume78
Issue number4
DOIs
Publication statusPublished - 7 Oct 2008

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