论文标题
光核和高核集体度测量
Light Nuclei and Hyper Nuclei Collectivity Measurements at High Baryon Density Region
论文作者
论文摘要
高能量重型离子碰撞会产生大量的光核和炒作核，尤其是在几个GEV碰撞能量周围的高baryon密度下。这些光核和超核具有核子核子和超核核相互作用的信息，并影响碰撞系统的化学组成和特性。该程序是对光核集合流的最新测量值的简短审查，包括有限和高阶流量系数，以及来自不同实验的有限和高baryon密度。根据测量和模型计算的比较，讨论了光核生产机制。还报道了恒星3 GEV的超核$ v_1 $的第一个测量，这可能意味着超核是通过核子和超子的聚结形成的。
High energy heavy-ion collisions produce large amounts of light nuclei and hype nuclei, especially at high baryon density around collision energy of several GeV. These light nuclei and hyper nuclei carry the information of nucleon-nucleon and hyperon-nucleon interactions and affect the chemical composition and properties of the collision system. This proceeding is a brief review for the recent measurements on light nuclei collective flow, including directed flow $v_1$, elliptic flow $v_2$, and high order flow coefficients, at finite and high baryon densities from different experiments. The light nuclei production mechanism is discussed based on comparisons of the measurements and model calculations. The first measurement for hyper nuclei $v_1$ at 3 GeV by STAR is also reported, which may imply the hyper nuclei are formed via the coalescence of nucleons and hyperon.
