论文标题
在深色风味领域的超新星约束
Supernova Constraints on Dark Flavored Sectors
论文作者
论文摘要
核心爆发超新星后几秒钟形成几秒钟的原始恒星是热且密集的环境，在该环境中，可以通过弱过程有效地产生Hyperons。通过利用各种最先进的超新星模拟，结合了状态方程的适当扩展，包括$λ$ hyperons，我们计算了通过decay $λ\ to n x^0 $ decay $λ\发射到深色玻色子$ x^0 $所引起的星星的冷却。将这种新型的减肥过程与SN 1987a的中微子冷却进行比较，使我们能够在无质量的深色光子和轴上设置严格的限制，并与夸克与夸克相结合。我们发现，这种新的超新星结合可以比黑暗扇区模型中的其他限制强的数量级。
Proto-neutron stars forming a few seconds after core-collapse supernovae are hot and dense environments where hyperons can be efficiently produced by weak processes. By making use of various state-of-the-art supernova simulations combined with the proper extensions of the equations of state including $Λ$ hyperons, we calculate the cooling of the star induced by the emission of dark bosons $X^0$ through the decay $Λ\to n X^0$. Comparing this novel energy-loss process to the neutrino cooling of SN 1987A allows us to set stringent constraints on massless dark photons and axions with flavor-violating couplings to quarks. We find that this new supernova bound can be orders of magnitude stronger than other limits in dark-sector models.
