Transient field fluctuations effects in d+Au and Au+Au collisions at {radical}(s{sub NN})=200 GeV
- McGill University, Montreal, Canada, H3A 2T8 (Canada)
- Physics Department, Columbia University, New York, New York 10027, USA (United States)
- Wayne State University, Detroit, Michigan 48201 (United States)
The effect of fluctuations of strong color electric fields (SCF) on the baryon production in d+Au and Au+Au collisions at 200A GeV is studied in the framework of the HIJING/BB v2.0 model. It is shown that the dynamics of the production process deviates considerably from calculations based on Schwinger-like estimates for homogeneous and constant color fields. An increase of the string tension from {kappa}{sub 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{sub dAu} and R{sub AuAu} [that relates (d)Au+Au and p+p collisions], and point to the relevance of fluctuations of transient color fields. The differences between nuclear modification factors R{sub AuAu} and R{sub CP} (that relates central and peripheral collisions) are also discussed. The measurement of multistrange (anti)hyperons ({xi},{omega}) yields would provide a crucial test of the importance of SCF fluctuations at RHIC energies.
- OSTI ID:
- 20990967
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevC.75.014904; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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