标题： DD2Y-T模型中玻色子暗物质候选者的质量约束 显示英文标题

标题： Constraints on the mass of a bosonic dark matter candidate within the DD2Y-T model

摘要： 暗物质仍然是一个持续有争议的话题。 它在致密天体（如核心为极高密度物质的中子星）的理论描述中引起了关注。 在科学文献中，已经提出了各种暗物质候选者。 其中，sexaquark被确定为一种潜在的玻色子粒子，根据其质量特征，可以在中子星物质中形成。 在本研究中，我们探讨sexaquark作为暗物质候选者的可行性，特别是在某些密度条件下。 我们的目标是解决在高密度介质中形成玻色子粒子所面临的挑战，同时不损害中子星的稳定性。 为此，我们在强子状态方程中引入了一个简单的线性质量偏移，采用相对论密度泛函方法。 在我们的研究中，观察到将sexaquark作为暗物质候选者包含在强子物质状态方程中，尽管与重子物质存在排斥相互作用，但会软化状态方程。 我们假设暗物质与重子物质的相互作用强度随着重子密度的增加而线性增加。 我们观察到，由于真空质量的增加而导致sexaquark有效质量的提高，与恒定质量的情况相比，会导致状态方程的刚度增加。 我们基于在使用夸克物质相变时DD2Y-T模型中中子星的观测约束，确定了这种玻色子暗物质的质量下限和上限。 显示英文摘要

摘要： Dark matter remains a topic of ongoing controversy. It has gained attention in the theoretical description of compact objects such as neutron stars with cores of very dense matter. Various candidates have been proposed for dark matter in the scientific literature. Among them, the sexaquark has been identified as a potential bosonic particle capable of being formed in neutron star matter based on its mass characteristics. In this study, we investigate the viability of the sexaquark as a candidate for dark matter, particularly under certain density conditions. Our goal is to address the challenges associated with the formation of a bosonic particle in a highly dense medium without compromising the stability of the neutron star. To achieve this, we introduce a straightforward linear mass shift for the sexaquark within the hadronic equation of state, utilizing a relativistic density functional approach. In our investigation, it is observed that the inclusion of Sexaquark as a candidate for dark matter within the hadronic matter equation of state, although featuring a repulsive interaction with baryonic matter, softens the equation of state. We suppose that the strength of the interaction of dark matter with baryonic matter increases linearly with the baryon density. We observe that raising the effective mass of the Sexaquark, as a result of increasing its vacuum mass, causes an increased stiffening of the equation of state as compared to the case of a constant mass. We determine the lower and upper mass boundaries for this bosonic dark matter based on observational constraints for neutron stars within the DD2Y-T model when a phase transition to quark matter phase is employed.