利用相对论重离子碰撞测量短程关联
Measuring short-range correlations using relativistic heavy-ion collisions
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中文总结 AI 辅助
提出利用相对论重离子碰撞中ZDC探测器测量的旁观中子产额比，来探测核内短程关联的强度、同位旋依赖性及高动量尾部核子比例，为传统散射实验提供替代方案。
中文摘要 AI 辅助
我们提出了一种新方法，通过原子核在相对论能量下的碰撞来测量原子核中短程关联（SRCs）的强度及其同位旋依赖性。由于由SRCs引起的高动量尾部（HMT）中的核子具有较大的横向速度，我们发现，通过零度量能器（ZDC）阵列探测到的自由旁观中子在大横向距离与小横向距离处的产额比，可以探测HMT中核子的比例。此外，在中心$^{96}$Zr+$^{96}$Zr与$^{96}$Ru+$^{96}$Ru碰撞中，测量ZDC中子在大横向距离处的产额比，可以探测HMT和SRCs的同位旋依赖性。与传统散射实验相比，我们的研究表明，相对论重离子碰撞可以作为测量碰撞核中SRCs的一种替代方法，且末态相互作用更少。
英文摘要
We propose a novel method to measure the strength and isospin dependence of short-range correlations (SRCs) in nuclei with their collisions at relativistic energies. Since nucleons in the high-momentum tail (HMT) induced by SRCs have large transverse velocities, we find that measuring the yield ratio of free spectator neutrons at large to small transverse distances detected by Zero-Degree Calorimeter (ZDC) array may probe the fraction of nucleons in the HMT. In addition, measuring the yield ratio of ZDC neutrons in central $^{96}$Zr+$^{96}$Zr to $^{96}$Ru+$^{96}$Ru collisions at large transverse distances may probe the isospin dependence of the HMT and SRCs. Compared to traditional scattering experiments, our study illustrates that relativistic heavy-ion collisions may serve as an alternative way of measuring SRCs in colliding nuclei with less final-state interactions.
发表机构
- Fudan University（复旦大学）
- Tongji University（同济大学）
- Institute of Modern Physics, Chinese Academy of Sciences（中国科学院近代物理研究所）
机构由 AI 辅助整理，请以论文原文为准。
