arXiv:hep-ph/0608136·v3·High Energy Physics — Phenomenology
Transient field fluctuations effects in d+Au and Au+Au collisions at \sqrt{s_nn} = 200 GeV
V. Topor Pop (McGill Univ., Canada)🇨🇦 · M. Gyulassy (Columbia Univ.NY, USA and FIAS, Frankfurt am Main, Germany)🇺🇸 · J. Barrette🇨🇦 · C. Gale🇨🇦 · S. Jeon (McGill Univ., Canada)🇨🇦 · R. Bellwied (Wayne State Univ., Detroit, USA)🇺🇸
Abstract
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.
Comments: 13 pages,Latex (revtex4), 11 figures, 2 tables; abstract slightly modified, text modification, revised version accepted for publication in Phys. Rev. C