Effects of strong color fields on baryon dynamics
Effects of strong color fields on baryon dynamics
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DOI：
10.1016/s0370-2693(02)03019-8
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发表时间：
2002-09
影响因子：
4.4
通讯作者：
S. Soff;J. Randrup;H. Stocker;N. Xu
中科院分区：
文献类型：
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作者：
S. Soff;J. Randrup;H. Stocker;N. Xu
我们计算了RHIC（sNN=200 GeV）下Au+Au碰撞的反重子-重子比p_（？）/p、Λ_（？）/Λ、Ω /Ω。研究了强色场对奇异性和双夸克产生几率的增强以及形成时间的有效减少的影响。反重子与重子的比值随色场强度的增加而增加。这些比值也随着奇异含量的增加而增加|S|.中快度的净重子数随着色场强度的增加而显著增加，而净质子数大致保持不变。这表明，增强的重子输运涉及到一个转换到超子扇区（超子化），这可以在（Λ-Λ）/（p-p）比率中观察到。
We calculate the antibaryon-to-baryon ratios, p ̄ /p, Λ ̄ /Λ, Ξ /Ξ , and Ω /Ω for Au+Au collisions at RHIC (sNN=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 (Λ− Λ ̄ )/(p− p ̄ ) ratio.