论文标题
大爆炸核合成的轴轴 - 莱普顿耦合的限制
Constraints on Axion-Lepton coupling from Big Bang Nucleosynthesis
论文作者
论文摘要
在本文中，我们研究了轴突样粒子（ALP）和叶子之间的耦合对宇宙学的含义，特别是大爆炸核合成（BBN）。我们表明，通过对有效数量的相对论中微子物种的限制，BBN为ALP电子相互作用强度提供了最严格的束缚，用于在20 KeV和1 MeV之间的轴质量。对于质量的其他值，BBN结合了恒星进化和实验室界限。
In this article, we study the implications of the coupling between Axion-Like-Particles (ALPs) and Leptons to cosmology, in particular, the Big Bang Nucleosynthesis (BBN). We show that the BBN, through the constraint on the effective number of relativistic neutrino species, provides the most stringent bound on the ALP-electron interaction strength for the mass of axion between 20 keV and 1 MeV. For other values of the mass, the BBN bound complements the stellar-evolution and laboratory bounds.
