论文标题
短程相关性影响中子星的可变形性
Short-range correlations effects on the deformability of neutron stars
论文作者
论文摘要
在目前的工作中，我们研究了短距离相关性（SRC）对与GW170817事件相关的二进制中子系统无量纲变形的影响。我们在相对论的平均场模型中实现了现象学SRC，其中批量参数（即不可压缩性（$ k_0 $），有效的核元质量比（$ m^*$），对称能量（$ j $）和坡度（$ j_0 $））独立控制。我们的结果指出，SRC倾向于通过Ligo/Pirgo协作建立的约束，对$λ_{1.4} $以及$λ_1\timesλ_2$ region的限制。我们还发现$λ_{1.4} $与$ k_0 $和$ l_0 $（增加依赖性）以及$ m^*$和$ j $（减少依赖性）之间的线性相关性。最后，与Neutron Star Interior Composition Explorer Mission相比，我们还获得了$ R_ {1.4} $（带有和不使用SRC的模型）的兼容数字。
In the present work, we investigate the effects of short-range correlations (SRC) on the dimensionless deformability of the binary neutron system related to the GW170817 event. We implemented phenomenological SRC in a relativistic mean-field model in which the bulk parameters, namely, incompressibility ($K_0$), effective nucleon mass ratio ($m^*$), symmetry energy ($J$) and its slope ($J_0$), are independently controlled. Our results point out that the SRC favor the model to pass through the constraints, established by the LIGO/Virgo Collaboration, on the values of $Λ_{1.4}$ and on the $Λ_1\timesΛ_2$ region. We also found a clear linear correlation between $Λ_{1.4}$ with $K_0$ and $L_0$ (increasing dependence), and with $m^*$ and $J$ (decreasing dependence). Finally, we also obtained compatible numbers for $R_{1.4}$ (model with and without SRC) in comparison with recent data from the neutron star interior composition explorer mission.
