Heavy-ion collision multiplicities and gluon distribution functions

被引：18
作者：
Eskola, KJ
Kajantie, K
Tuominen, K
机构：
[1] Univ Jyvaskyla, Dept Phys, FIN-40351 Jyvaskyla, Finland
[2] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland
[3] Helsinki Inst Phys, FIN-00014 Helsinki, Finland
来源：
NUCLEAR PHYSICS A | 2002年 / 700卷 / 1-2期
基金：
芬兰科学院;
关键词：
heavy-ion collisions; minijets; perturbative QCD; multiplicities; gluon distribution functions;
D O I：
10.1016/S0375-9474(01)01308-2
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：
Atomic number (A) and energy (roots) scaling exponents of multiplicity and transverse energy in heavy-ion collisions are analytically derived in the perturbative QCD + saturation model. The exponents depend on the small-x behaviour of gluon distribution functions at an x-dependent scale. The relation between initial-state and final-state saturation is also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：509 / 522
页数：14
相关论文
共 26 条
  • [1] Abramowitz M., 1970, HDB MATH FUNCTIONS
  • [2] Centrality dependence of charged particle multiplicity in Au-Au collisions at √(S)NN=130 GeV
    Adcox, K
    Adler, SS
    Ajitanand, NN
    Akiba, Y
    Alexander, J
    Aphecetche, L
    Arai, Y
    Aronson, SH
    Averbeck, R
    Awes, TC
    Barish, KN
    Barnes, PD
    Barrette, J
    Bassalleck, B
    Bathe, S
    Baublis, V
    Bazilevsky, A
    Belikov, S
    Bellaiche, FG
    Belyaev, ST
    Bennett, MJ
    Berdnikov, Y
    Botelho, S
    Brooks, ML
    Brown, DS
    Bruner, N
    Bucher, D
    Buesching, H
    Bumazhnov, V
    Bunce, G
    Burward-Hoy, J
    Butsyk, S
    Carey, TA
    Chand, P
    Chang, J
    Chang, WC
    Chavez, LL
    Chernichenko, S
    Chi, CY
    Chiba, J
    Chiu, M
    Choudhury, RK
    Christ, T
    Chujo, T
    Chung, MS
    Chung, P
    Cianciolo, V
    Cole, BA
    D'Enterria, DG
    David, G
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (16) : 3500 - 3505
  • [3] Charged-particle multiplicity near midrapidity in central Au plus Au collisions at √sNN=56 and 130 GeV
    Back, BB
    Baker, MD
    Barton, DS
    Basilev, S
    Bates, BD
    Baum, R
    Betts, RR
    Bialas, A
    Bindel, R
    Bogucki, W
    Budzanowski, A
    Busza, W
    Carroll, A
    Ceglia, M
    Chang, YH
    Chen, AE
    Coghen, T
    Conner, C
    Czyz, W
    Dabrowski, B
    Decowski, MP
    Despet, M
    Fita, P
    Fitch, J
    Friedl, M
    Galuszka, K
    Ganz, R
    Garcia, E
    George, N
    Godlewski, J
    Gomes, C
    Griesmayer, E
    Gulbrandsen, K
    Gushue, S
    Halik, J
    Halliwell, C
    Haridas, P
    Hayes, A
    Heintzelman, GA
    Henderson, C
    Hollis, R
    Holynski, R
    Holzman, B
    Johnson, E
    Kane, J
    Katzy, J
    Kita, W
    Kotula, J
    Kraner, H
    Kucewicz, W
    [J]. PHYSICAL REVIEW LETTERS, 2000, 85 (15) : 3100 - 3104
  • [4] BACK BB, NUCLEX0105011
  • [5] THE EARLY STAGE OF ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS
    BLAIZOT, JP
    MUELLER, AH
    [J]. NUCLEAR PHYSICS B, 1987, 289 (3-4) : 847 - 860
  • [6] Production of transverse energy from minijets in next-to-leading order perturbative QCD
    Eskola, KJ
    Tuominen, K
    [J]. PHYSICS LETTERS B, 2000, 489 (3-4) : 329 - 336
  • [7] Screening of initial parton production in ultrarelativistic heavy-ion collisions
    Eskola, KJ
    Muller, B
    Wang, XN
    [J]. PHYSICS LETTERS B, 1996, 374 (1-3) : 20 - 24
  • [8] Scaling of transverse energies and multiplicities with atomic number and energy in ultrarelativistic nuclear collisions
    Eskola, KJ
    Kajantie, K
    Ruuskanen, PV
    Tuominen, K
    [J]. NUCLEAR PHYSICS B, 2000, 570 (1-2) : 379 - 389
  • [9] QUARK AND GLUON PRODUCTION IN HIGH-ENERGY NUCLEUS NUCLEUS COLLISIONS
    ESKOLA, KJ
    KAJANTIE, K
    LINDFORS, J
    [J]. NUCLEAR PHYSICS B, 1989, 323 (01) : 37 - 52
  • [10] Scale evolution of nuclear parton distributions
    Eskola, KJ
    Kolhinen, VJ
    Ruuskanen, PV
    [J]. NUCLEAR PHYSICS B, 1998, 535 (1-2) : 351 - 371
123