中子星中的标量重子
Scalar baryons in neutron stars
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中文总结 AI 辅助
本文研究具有重子数的GeV尺度标量对中子星物态方程的影响，发现需非微扰大排斥性自耦合支撑两倍太阳质量中子星，还探讨了类似Coleman Q物质的吸引性自相互作用势的标量产生情况。
中文摘要 AI 辅助
中子星的重子化学势可超过中子质量，为将中子转化为携带重子数的新粒子提供了有利条件，即便这些过程在真空中是运动学禁戒的。我们研究了具有重子数的GeV尺度标量对中子星物态方程的影响，结果表明，要支撑观测到的两倍太阳质量中子星，需要非微扰大的排斥性自耦合。我们还研究了具有吸引性自相互作用的势，这种势即使在质量高于化学势时也能触发标量产生，且类似Coleman的Q物质。
英文摘要
Neutron stars have baryon chemical potentials that can exceed the neutron mass, providing favorable conditions to convert neutrons to new particles carrying baryon number, even if those processes are kinematically forbidden in vacuum. We study the effect of GeV-scale scalars with baryon number on neutron stars' equation of state and show that non-perturbatively large repulsive self-couplings are required to support the observed two-solar-mass neutron stars. We also study potentials with attractive self-interactions, which can trigger scalar production even for masses above the chemical potential and resemble Coleman's Q-matter.
