发表机构
Tongji University; Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences（同济大学; 中国科学院近代物理研究所南方核科学理论中心（SCNT））
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文通过SIBUU输运方程模拟研究中能重离子碰撞的自旋输运，明确了其物理基础、关键挑战及自旋-轨道势等对观测量的影响，为该领域的理论与实验研究提供参考。
AI 中文摘要
在这篇小型综述中，我们通过测试粒子方法模拟自旋与同位旋相关的Boltzmann-Uehling-Uhlenbeck（SIBUU）输运方程的解，对中能重离子碰撞中自旋输运现象的研究现状进行简要报告。我们概述了物理基础与技术方法，总结了主要结果，并明确了在SIBUU框架内进一步研究自旋输运的关键挑战。作为示例，我们展示了核子的全局与局域自旋极化、核子集体流的自旋劈裂以及不同自旋态下轻核的流如何用于探索与致密丰中子介质中核子自旋-轨道势相关的新物理。研究还表明，自旋-轨道势与严格的角动量守恒会影响自旋平均观测量。希望本文的新发现与明确的挑战能推动中能重离子碰撞中自旋输运的理论与实验进一步研究。
英文摘要
In this mini-review, we provide a brief status report on investigating spin transport phenomena in intermediate-energy heavy-ion collisions by simulating solutions of the spin- and isospin-dependent Boltzmann-Uehling-Uhlenbeck (SIBUU) transport equation using the test-particle method. We outline the physics foundation and technical approach, summarize our main results and identify key challenges in further studying spin transport within the SIBUU framework. As examples, we show how the global and local spin polarizations of nucleons, the spin splitting of nucleon collective flows as well as flows of light clusters at different spin states can be used to explore interesting new physics associated with the nuclear spin-orbit potential in dense neutron-rich medium. The spin-orbit potential and the rigorous angular momentum conservation are also shown to affect spin-averaged observables. Hopefully the new findings and challenges identified here will stimulate further studies both theoretically and experimentally on spin transport in intermediate-energy heavy-ion collisions.
Comments21 pages, 15 figures, invited mini-review
Journal refJournal of Physics G 53, 093001 (2026)
