4 papers
Electroweak Baryogenesis: Advances in Sphaleron Rate Calculations and Implications of Thermal Phase Transitions
Yanda Wu
This thesis reviews recent advances in calculating the sphaleron rate, with particular emphasis on electroweak baryogenesis. It also provides pedagogical introductions to sphaleron…
Phase transitions, anomalous baryon number violation and electroweak multiplet dark matter
Yanda Wu, Wenxing Zhang, Michael J. Ramsey-Musolf
We perform a comprehensive analysis of baryon number violation during an electroweak phase transition (EWPT) within the framework of a scalar electroweak multiplet extension of the…
An Effective Sphaleron Awakens
Xu-Xiang Li, Michael J. Ramsey-Musolf, Tuomas V. I. Tenkanen +1
Using thermal effective field theory, we present a self-consistent perturbative formulation of the Higgs phase sphaleron rate after a radiatively-induced first-order phase transiti…
Super-exponential Primordial Black Hole Production via Delayed Vacuum Decay
Yanda Wu, Stefano Profumo
If a cosmological first-order phase transition occurs sufficiently slowly, delayed vacuum decay may lead to the formation of primordial black holes. Here we consider a simple model…