Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-08-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages,Latex (revtex4), 11 figures, 2 tables; abstract slightly modified, text modification, revised version accepted for pu
Scientific paper
10.1103/PhysRevC.75.014904
The effect of fluctuations of SCF on the baryon production in d+Au and Au+Au collisions at 200A GeV is studied in the framework of HIJING/BB v2.0 model. An increase of the string tension from kappa_0= 1 GeV/fm, to in medium mean values of 1.5 to 2.0 GeV/fm and 2.0 to 3.0 GeV/fm, for d+Au and Au+Au respectively, results in a consistent description of the observed nuclear modification factors R_dAu and R_AuAu(that relates (d)Au+Au and p+p colllisions) and point to the relevance of fluctuations of transient color fields. The differences between nuclear modification factors R_AuAu and R_CP (that relates central and peripheral collisions) are also discussed. The measurement of multi-strange (anti)hyperons (\Xi, \Omega) yields would provide a crucial test of the importance of SCF fluctuations at RHIC energies.
Barrette J.
Bellwied Rene
Gale Charles
Gyulassy Miklos
Jeon Sangyong
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