论文标题
带有新运输代码的扩展奇偶校验Doublet模型
Extended parity doublet model with a new transport code
论文作者
论文摘要
已经开发了一种新的运输代码“ Daejeon Boltzmann-uehling-uhlenbeck（DJBUU）”，并使能够描述低能量区域重型离子碰撞的动态。为了确认新代码的有效性，我们首先在EBEAM = 100和400A MEV上计算AU + AU碰撞，并执行盒子计算以检查碰撞的细节和Pauli阻塞的细节，而无需均值野外潜能，如传输代码比较项目所建议。在确认了新运输法规的有效性之后，我们使用延长的平等双重二键模型研究了低能的重型离子碰撞。由于奇偶元模型的独特特征是有助于核子质量的手性不变质量的存在，因此我们研究物理量如何取决于低能量下重离子碰撞中的手性不变质量。为此，我们计算物理量，例如中央碰撞中的有效核子质量和eBeam = 400A MEV的Au + au半碰撞中的横向流量，其手性不变质量的值不同。
A new transport code "DaeJeon Boltzmann-Uehling-Uhlenbeck (DJBUU)" had been developed and enables to describe the dynamics of heavy-ion collisions in low-energy region. To confirm the validity of the new code, we first calculate Au + Au collisions at Ebeam = 100 and 400A MeV and also perform the box calculation to check the detail of collisions and Pauli blocking without mean-field potential as suggested by the Transport Code Comparison Project. After confirming the validity of new transport code, we study low-energy heavy-ion collisions with an extended parity doublet model. Since the distinctive feature of the parity doublet model is the existence of the chiral invariant mass that contributes to the nucleon mass, we investigate how physical quantities depend on the chiral invariant mass in heavy ion collisions at low energies. For this, we calculate physical quantities such as the effective nucleon mass in central collisions and transverse flow in semi-central collisions of Au + Au at Ebeam = 400A MeV with different values of the chiral invariant masses.
