axion-like particles 1inflation 1leptogenesis 1non-thermal production 1preheating 1right-handed neutrinos 1
From the 1 of 3 linked papers with an AI index.
3 papers
hep-ph2026
Right-Handed Neutrino Production by an Axion-like Inflaton: Implications for Leptogenesis
Weiyi Deng, Chengcheng Han, Wuzhou Yin +1
The paper analyzes how a derivative coupling between an axion‑like inflaton and heavy right‑handed neutrinos generates these particles during inflation and preheating, and evaluate…
astro-ph.CO2025
Curvature Perturbations from Higgs Modulated Reheating
Weiyi Deng, Chengcheng Han, Zhanhong Lei +1
In this work we investigate curvature perturbations and non-Gaussianity arising from Higgs modulated reheating in the early Universe. We employ three different methods -- the perio…
hep-ph2025
Probing Non-Thermal Gravitinos Through Large-Scale Structure Observations
Weiyi Deng, Liyuan Guo, Chengcheng Han +1
We investigate the effects of non-thermally produced dark matter on large-scale structure formation, focusing on the gravitino dark matter. Our analysis shows that large-scale stru…