Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at158AGeV
نویسندگان
چکیده
منابع مشابه
Hadronic centrality dependence in nuclear collisions
The kaon number density in nucleus+nucleus and p+p reactions is investigated for the first time as a function of the initial energy density ǫ and is found to exhibit a discontinuity around ǫ=1.3 GeV/fm. This suggests a higher degree of chemical equilibrium for ǫ > 1.3 GeV/fm. It can also be interpreted as reflection of the same discontinuity, appearing in the chemical freeze out temperature (T)...
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C. Alt9, T. Anticic23, B. Baatar8,D. Barna4, J. Bartke6, L. Betev10, H. Białkowska20, C. Blume9, B. Boimska20, M. Botje1, J. Bracinik3, R. Bramm9, P. Bunčić10, V. Cerny3, P. Christakoglou2, P. Chung19, O. Chvala14, J.G. Cramer16, P. Csató4, P. Dinkelaker9, V. Eckardt13, D. Flierl9, Z. Fodor4, P. Foka7, V. Friese7, J. Gál4, M. Gaździcki9,11, V. Genchev18, G. Georgopoulos2, E. Gładysz6, K. Grebie...
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We compute the centrality dependence of multiplicities of particles produced in ultrarelativistic nuclear collisions at various energies and atomic numbers. The computation is carried out in perturbative QCD with saturated densities of produced gluons and by including effects of nuclear geometry. Numbers are given for Au+Au collisions at RHIC energies. [email protected] keijo.kajantie@hel...
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System size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at 158A GeV was studied in the NA49 CERN experiment. Results indicate a non-monotonic dependence of the scaled variance of the multiplicity distribution with a maximum for semi-peripheral Pb+Pb interactions with number of projectile participants of about 35. This effect is not observed in a s...
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C. Alt9, T. Anticic23, B. Baatar8,D. Barna4, J. Bartke6, L. Betev10, H. Białkowska20, C. Blume9, B. Boimska20, M. Botje1, J. Bracinik3, R. Bramm9, P. Bunčić10, V. Cerny3, P. Christakoglou2, P. Chung19, O. Chvala14, J.G. Cramer16, P. Csató4, P. Dinkelaker9, V. Eckardt13, D. Flierl9, Z. Fodor4, P. Foka7, V. Friese7, J. Gál4, M. Gaździcki9,11, V. Genchev18, G. Georgopoulos2, E. Gładysz6, K. Grebie...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2007
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.75.064904