论文标题
树级CPT侵入生成中的曲率和热校正
Curvature and thermal corrections in tree-level CPT-Violating Leptogenesis
论文作者
论文摘要
在基于Lorentz和CPT对称性的自发断裂[1-3]的模型中，我们检查了使用平面波解的近似值的一致性，用于在Friedmann-Lemait-Lemaitson-Lemaitson-w-W-W-Lemaitson-weralsss-wermer-wmitivection time-Permentive time-Aperments at pertiments ippertiment（或均等）中，与弗里德曼·弗里德曼（Friedmann-Lemaitson-wermertive）相关的近似（1/2）dirac（或Majorana）fermion fermion Field（或Kalb-Ramond（KR）背景。对于与卵生生成相关的参数范围，我们的分析完全证明了在使用Boltzmann方程的瘦肉发生中使用平面波溶液的合理性；时空横向引起的任何校正都可以忽略不计。我们还进一步详细介绍了Lepton不对称方式如何传达给Baryon部门。我们证明，KR背景（KRB）并不有助于通过对三角形Feynman图的明确评估来确定BARYON不对称的异常方程，而B）以拓扑结构为基础，通过将KRB识别为Torsion（在有效的弦乐弦乐器中，有效的弦乐低能电磁场理论中）。
In a model for leptogenesis based on spontaneous breaking of Lorentz and CPT symmetry [1-3], we examine the consistency of using the approximation of plane-wave solutions for a free spin-(1/2) Dirac (or Majorana) fermion field propagating in a Friedmann-Lemaitre-Robertson-Walker space time augmented with a cosmic time-dependent (or, equivalently, a temperature-dependent) Kalb-Ramond (KR) background. For the range of parameters relevant for leptogenesis, our analysis fully justifies the use of plane-wave solutions in our study of leptogenesis with Boltzmann equations; any corrections induced by space-time-curvature are negligible. We also elaborate further on how the lepton asymmetry is communicated to the Baryon sector. We demonstrate that the KR background (KRB) does not contribute to the anomaly equations that determine the baryon asymmetry a) through an explicit evaluation of a triangle Feynman graph and b) indirectly, on topological grounds, by identifying the KRB as torsion (in the effective string-inspired low energy gravitational field theory).
