Effective chemical potential in spontaneous baryogenesis

Arnab Dasgupta, Rajeev Kumar Jain, Raghavan Rangarajan

Models of spontaneous baryogenesis have an interaction term ${\partial }_{\mu }\theta j_B^{\mu }$ in the Lagrangian, where $j_B^{\mu }$ is the baryonic current and $\theta$ can be a pseudo-Nambu-Goldstone boso…