分离重子停止效应和中子皮肤效应在重离子碰撞中的影响
Disentangling baryon stopping and neutron skin effects in heavy-ion collisions
AI总结:
研究通过统计模型分析重离子碰撞中的净重子和净电荷停止效应,提出通过RHIC测量提取重子停止参数γ_B,并引入氧基线观测量r^OX以研究靶核中子皮肤厚度。
摘要:
我们利用统计模型分析重离子碰撞中的净重子(B)和净电荷(Q)停止效应。首先以Ru+Ru和Zr+Zr碰撞系统在√s_NN=200 GeV下研究,证明过剩重子停止参数γ_B≡(N_B/N_Q)(Z/A)可通过未来RHIC测量的电荷和重子停止比定量提取。然后将该方法推广到其他碰撞系统,并引入氧基线观测量r^OX,其中央至边缘比值对靶核X的中子皮肤厚度表现出强烈且系统性的敏感性。
英文摘要:
We analyse the net baryon (B) and net electric charge (Q) stopping in heavy-ion collisions using the statistical model. Focusing first on isobar collisions $\rm{Ru}+\rm{Ru}$ and $\rm{Zr}+\rm{Zr}$ at $\sqrt{s_{\rm NN}}=200$~GeV, we show that the excess baryon-stopping parameter $γ_B \equiv (N_B/N_Q)\,(Z/A)$ can be quantitatively extracted from forthcoming RHIC measurements of charge- and baryon-stopping ratios. We then generalize the approach to other collision systems at RHIC and LHC energies and introduce an oxygen-baseline observable, $r^{OX}$, whose central-to-peripheral ratio exhibits strong and systematic sensitivity to the neutron-skin thickness of the target nucleus $X$.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。