LOW-MASS DILEPTONS AT HIGH MOMENTA IN ULTRA-RELATIVISTIC HEAVY-ION COLLISIONS

被引:69
作者
ALTHERR, T [1 ]
RUUSKANEN, PV [1 ]
机构
[1] UNIV JYVASKYLA,DEPT PHYS,SF-40351 JYVASKYLA,FINLAND
关键词
D O I
10.1016/0550-3213(92)90249-B
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We calculate the emission rate of low-mass dileptons at high momenta from a quark-gluon plasma. We find a large enhancement compared with the naive Born rate. Numerical estimates for relativistic heavy ions collisions at RHIC and LHC suggest, however, that the thermal signal is dominated by the background coming from meson decays and from hadronic bremsstrahlung.
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收藏
页码:377 / 390
页数:14
相关论文
共 36 条
  • [1] MULTIPLICITY DEPENDENCE OF THE TRANSVERSE-MOMENTUM SPECTRUM FOR CENTRALLY PRODUCED HADRONS IN ANTIPROTON-PROTON COLLISIONS AT SQUARE-ROOT-S=1.8 TEV
    ALEXOPOULOS, T
    ALLEN, C
    ANDERSON, EW
    ARETI, H
    BANERJEE, S
    BEERY, PD
    BISWAS, NN
    BUJAK, A
    CARMONY, DD
    CARTER, T
    COLE, P
    CHOI, Y
    DEBONTE, R
    ERWIN, A
    FINDEISEN, C
    GOSHAW, AT
    GUTAY, LJ
    HIRSCH, AS
    HOJVAT, C
    KENNEY, VP
    KOLTICK, D
    LINDSEY, CS
    LOSECCO, JM
    MCMAHON, T
    MCMANUS, AP
    MORGAN, N
    NELSON, K
    OH, SH
    PIEKARZ, J
    PORILE, NT
    REEVES, D
    SCHARENBERG, RP
    STRINGFELLOW, BC
    STAMPKE, SR
    THOMPSON, M
    TURKOT, F
    WALKER, WD
    WANG, CH
    WESSON, DK
    [J]. PHYSICAL REVIEW LETTERS, 1988, 60 (16) : 1622 - 1625
  • [2] PRODUCTION SPECTRA OF PI+/-, K+/-, P+/- AT LARGE ANGLES IN PROTON-PROTON COLLISIONS IN CERN INTERSECTING STORAGE RINGS
    ALPER, B
    BOGGILD, H
    BOOTH, P
    BULOS, F
    CARROLL, LJ
    DAMGAARD, G
    VONDARDEL, G
    DUFF, B
    HANSEN, KH
    HEYMANN, F
    JACKSON, JN
    JARLSKOG, G
    JONSSON, L
    KLOVNING, A
    LEISTAM, L
    LILLETHUN, E
    LOHSE, E
    LYNCH, G
    MANNING, G
    POTTER, K
    PRENTICE, M
    SHARP, P
    SHARROCK, S
    OLGAARDNIELSEN, S
    QUARRIE, D
    WEISS, JM
    [J]. NUCLEAR PHYSICS B, 1975, 100 (02) : 237 - 290
  • [3] FINITE TEMPERATURE QCD CORRECTIONS TO LEPTON-PAIR FORMATION IN A QUARK GLUON PLASMA
    ALTHERR, T
    AURENCHE, P
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, 45 (01): : 99 - 107
  • [4] CANCELLATION OF INFRARED AND MASS SINGULARITIES IN THE THERMAL DILEPTON RATE
    ALTHERR, T
    BECHERRAWY, T
    [J]. NUCLEAR PHYSICS B, 1990, 330 (01) : 174 - 192
  • [5] ON INFRARED AND MASS SINGULARITIES OF PERTURBATIVE QCD IN A QUARK GLUON PLASMA
    ALTHERR, T
    AURENCHE, P
    BECHERRAWY, T
    [J]. NUCLEAR PHYSICS B, 1989, 315 (02) : 436 - 464
  • [6] FERMION SELF-ENERGY CORRECTIONS IN PERTURBATIVE THEORY AT FINITE TEMPERATURE
    ALTHERR, T
    AURENCHE, P
    [J]. PHYSICAL REVIEW D, 1989, 40 (12): : 4171 - 4177
  • [7] ASHIDA N, 1991, OCU137 OS CIT U PREP
  • [8] PRODUCTION-RATE OF HARD THERMAL PHOTONS AND SCREENING OF QUARK MASS SINGULARITY
    BAIER, R
    NAKKAGAWA, H
    NIEGAWA, A
    REDLICH, K
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1992, 53 (03): : 433 - 438
  • [9] DILEPTON PRODUCTION AT FINITE TEMPERATURE - PERTURBATIVE TREATMENT AT ORDER ALPHA-S
    BAIER, R
    PIRE, B
    SCHIFF, D
    [J]. PHYSICAL REVIEW D, 1988, 38 (09) : 2814 - 2832
  • [10] HIGHLY RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS - THE CENTRAL RAPIDITY REGION
    BJORKEN, JD
    [J]. PHYSICAL REVIEW D, 1983, 27 (01): : 140 - 151