论文标题
Brans-Dicke修饰的重力中原始黑洞的电动重力发生
Electroweak baryogenesis by primordial black holes in Brans-Dicke modified gravity
论文作者
论文摘要
在Brans-Dicke修饰的重力的宇宙学框架中提出了成功的男生成机制。 Brans-Dicke Field Dodination时代的尽头产生了带有质量小的原始黑洞。鹰辐射将每个黑洞周围的球形区域加热至高温，并在那里恢复电动对称性。形成了一个域壁，将其用对称真空与发生的不对称区域分开。不需要一阶相变。在Brans-Dicke宇宙学中，黑洞的积聚可能足以导致黑洞统治，从而延长了黑洞的寿命并因此。最终，对整个方案的分析导致了观察到的重子数，这可以通过观察到的两种二键盘模型来预测的CP侵略角度实现。我们提出的方案的优点是，与在FRW宇宙学背景中应用的相同机制相比，较小的CP违反角度既可以提供黑洞的支配和更有效的男性生成。
A successful baryogenesis mechanism is proposed in the cosmological framework of Brans-Dicke modified gravity. Primordial black holes with small mass are produced at the end of the Brans-Dicke field domination era. The Hawking radiation reheats a spherical region around every black hole to a high temperature and the electroweak symmetry is restored there. A domain wall is formed separating the region with the symmetric vacuum from the asymmetric region where electroweak baryogenesis takes place. First order phase transition is not needed. In Brans-Dicke cosmologies black hole accretion can be strong enough to lead to black holes domination which extends the lifetime of black holes and therefore baryogenesis. The analysis of the whole scenario, finally, results in the observed baryon number which can be achieved for a CP-violation angle that is predicted by observationally accepted Two-Higgs Doublet Models. The advantage of our proposed scenario is that naturally provides both black hole domination and more efficient baryogenesis for smaller CP violating angles compared to the same mechanism applied in a FRW cosmological background.
