3 papers
hep-ph2026
Electroweak Baryogenesis from Collapsing Domain Walls
Yang Bai, Kun-Feng Lyu, Yue Zhao
We propose a novel mechanism for electroweak baryogenesis in which collapsing domain walls formed by an axion-like field replace the bubble walls in a strong first-order electrowea…
hep-ph2025
Probing Axion via Mössbauer Spectroscopy
Shengyi Liu, Kun-Feng Lyu, Jie Meng +3
We propose using the ultra-narrow 88 keV Mössbauer transition in Ag to search for QCD axion dark matter. The sub-eV axion field oscillates coherently, inducing a time-varyi…
hep-ph2025
QCD Axion Domain Walls from Super-Cooling First Order Phase Transition
Kun-Feng Lyu, Yue Zhao
The QCD axion is a well-motivated hypothetical particle beyond the Standard Model (SM) and a compelling dark matter candidate. Its relic abundance is highly sensitive to the therma…