Paper
Spontaneous baryosynthesis with large initial phase
Authors
Maxim Krasnov, Maxim Khlopov, Ufuk Aydemir
Abstract
We numerically investigate particle production by a pseudo-Nambu-Goldstone boson (pNGB) in spontaneous baryogenesis, focusing on large initial misalignment angles. Our analysis confirms the established cubic dependence of the baryon asymmetry on the initial phase for small angles. However, this scaling breaks down for larger angles, with particle production saturating as the initial phase approaches in Minkowski spacetime.