论文标题
通过一环量子校正未经味的瘦素发生与低能CP违规之间的直接联系
A direct link between unflavored leptogenesis and low-energy CP violation via the one-loop quantum corrections
论文作者
论文摘要
在I型SEESAW机制中，Casas-ibarra（CI）参数化提供了方便的描述，以轻质和沉重的主要中微子质量，Lepton Commix Matrix $ U $和一个未知的复杂式正交矩阵$ O $ o $ $ $ $ $ $。如果假定$ o $是真实的，则不可能通过Lepton-number-Affiolating和CP侵入腐烂的{\ it未经味的}热量生成，这是最轻的重大主要中微子。我们发现，在Seesaw和Electroweak尺度之间的一环重新归一化组方程（RGE）的帮助下，考虑到小但不可避免地对CI参数化的量子校正后，该观察结果可能无效。我们说明了一种基于Seesaw扩展的标准模型中的RGE的新颖且可行的无味的瘦素发生场景，并在低能能下向$ U $的CP侵入阶段展示了其直接链接。
In the type-I seesaw mechanism the Casas-Ibarra (CI) parametrization provides a convenient description of the Dirac neutrino mass matrix in terms of the light and heavy Majorana neutrino masses, the lepton flavor mixing matrix $U$ and an unknown complex orthogonal matrix $O$. If $O$ is assumed to be real, it will be impossible to generate {\it unflavored} thermal leptogenesis via the lepton-number-violating and CP-violating decays of the lightest heavy Majorana neutrino. We find that this observation can be invalidated after small but unavoidable quantum corrections to the CI parametrization are taken into account with the help of the one-loop renormalization-group equations (RGEs) between the seesaw and electroweak scales. We illustrate a novel and viable unflavored leptogenesis scenario of this kind based on the RGEs in the seesaw-extended standard model, and show its direct link to the CP-violating phases of $U$ at low energies.
