基于输运模型的致密重离子碰撞初始条件
核理论
2026-02-17 v2 高能物理 - 唯象学
摘要
我们采用SMASH输运模型，为相对论重离子碰撞的流体动力学模拟提供逐事件的能量-动量张量和守恒流初始条件。我们研究了三种守恒流（净重子数、净电荷和净奇异性）在流体动力学相中的涨落与动力学演化，采用基于四维格点QCD的状态方程NEOS-4D。粒子化阶段的非平衡修正被推广至有限密度，以确保能量、动量和三种守恒量的守恒。这些理论发展被整合到X-SCAPE代码中，作为研究束流能量扫描计划中核物质性质的统一框架。
引用
@article{arxiv.2510.06996,
title = {Transport-based initial conditions for heavy-ion collisions at finite densities},
author = {H. Roch and G. Pihan and A. Monnai and S. Ryu and N. Senthilkumar and J. Staudenmaier and H. Elfner and B. Schenke and J. H. Putschke and C. Shen and S. A. Bass and M. Chartier and Y. Chen and R. Datta and R. Dolan and L. Du and R. Ehlers and R. J. Fries and C. Gale and D. A. Hangal and B. V. Jacak and P. M. Jacobs and S. Jeon and Y. Ji and F. Jonas and M. Kordell and A. Kumar and R. Kunnawalkam-Elayavalli and J. Latessa and Y. -J. Lee and M. Luzum and A. Majumder and S. Mak and A. Mankolli and C. Martin and H. Mehryar and T. Mengel and C. Nattrass and J. Norman and M. Ockleton and C. Parker and J. -F. Paquet and G. Roland and L. Schwiebert and A. Sengupta and M. Singh and C. Sirimanna and R. A. Soltz and I. Soudi and Y. Tachibana and J. Velkovska and G. Vujanovic and X. -N. Wang and X. Wu and J. Zhang and W. Zhao},
journal= {arXiv preprint arXiv:2510.06996},
year = {2026}
}
备注
17 pages, 12 figures