论文标题

在勃雷启发的宇宙学中的最小瘦素发生

Minimal Leptogenesis in Brane-inspired Cosmology

论文作者

Di Marco, Alessandro, Banik, Amit Dutta, Ghoshal, Anish, Pradisi, Gianfranco

论文摘要

我们讨论以非标准的多个标量场宇宙学为特征的通货膨胀后再加热阶段如何改变宇宙的热历史,从而影响最小的高尺度诱饵发生。特别是,我们探索了一类模型,其中一组由Brane启发的动态场景中的一组标量字段修改了有关标准瘦素发生的玻尔兹曼方程。由于负责通过I型SEESAW产生标准模型中微子质量的沉重右手中微子的衰减,产生的Lepton不对称性也受到影响。

We discuss how a post inflationary reheating phase characterized by a nonstandard multiple scalar field cosmology can change the thermal history of the universe, affecting minimal high scale leptogenesis. In particular, we explore a class of models where a set of scalar fields in a brane-inspired dynamical scenario modifies the Boltzmann equations concerning standard leptogenesis. The produced lepton asymmetry, due to the decays of heavy Majorana right-handed neutrinos responsible for generating Standard Model neutrino masses via the type-I seesaw, is affected as well.

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