论文标题
黄酮磁性 - 巴氏生成
Flavon Magneto-Baryogenesis
论文作者
论文摘要
在本文中，我们探讨了早期宇宙中巴里昂不对称性以及超磁场的演变，假设Froggatt-Nielsen的Flavon携带不对称性。通过Flavon对标准模型费米的衰变，这种不对称性被转移到费米子上，右手电子在其Yukawa相互作用不超过热平衡时保持其不对称性。通过Flavon的存在，我们可以确保右撇子电子的冷冻温度比标准宇宙学方案更接近Electroweak相变。有了这个技巧，右撇子电子中的不对称性节省了更长的时间。此外，向右撇子电子的不对称注射是逐渐的，这有助于显着保存不对称性。由于费米数违规与高磁场的螺旋性之间的亲密关系，一些不对称性用于扩增超磁场，这本身可以通过将Yukawa过程保持在热平衡中来保留残余的不对称性。我们发现参数空间的甜区域可以在电动eak相变时产生大型超磁场，同时产生较大的超磁场。
In this paper, we explore the evolution of baryon asymmetry as well as the hypermagnetic field in the early universe with an assumption that the flavon of the Froggatt-Nielsen carries an asymmetry. Through the decay of the flavon to Standard Model fermions, this asymmetry is transferred to fermions, where the right-handed electron keeps its asymmetry while its Yukawa interaction is out of thermal equilibrium. Through the existence of the flavon, we can ensure that the freezing-in temperature of the right-handed electron is closer to the electroweak phase transition than the Standard cosmology scenario. With this trick, the asymmetry in the right-handed electron is saved for a longer time. Moreover, the injection of the asymmetry to the right-handed electron is gradual, which helps the preservation of the asymmetry in the right-handed sector significantly. Due to the intimate relationship between fermion number violation and the helicity of the hypermagnetic field, some of the asymmetry is used to amplify the hypermagnetic field which itself helps to preserve the remnant asymmetry through keeping the Yukawa processes out of thermal equilibrium. We find the sweet region of the parameter space that can produce the right asymmetry in the baryons while generating a large hypermagnetic field by the time of the electroweak phase transition.
