Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-09-28
Phys.Lett. B551 (2003) 115-120
Physics
Nuclear Physics
Nuclear Theory
5 pages, 2 figures, 1 table
Scientific paper
10.1016/S0370-2693(02)03019-8
We calculate the antibaryon-to-baryon ratios, anti-p/p, anti-Lambda/Lambda, anti-Xi/Xi, and anti-Omega/Omega for Au+Au collisions at RHIC (sqrt{s}_{NN}=200 GeV). The effects of strong color fields associated with an enhanced strangeness and diquark production probability and with an effective decrease of formation times are investigated. Antibaryon-to-baryon ratios increase with the color field strength. The ratios also increase with the strangeness content |S|. The netbaryon number at midrapidity considerably increases with the color field strength while the netproton number remains roughly the same. This shows that the enhanced baryon transport involves a conversion into the hyperon sector (hyperonization) which can be observed in the (Lambda - anti-Lambda)/(p - anti-p) ratio.
Randrup Jorgen
Soff Sven
Stocker Horst
Xu Nu
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