Titlebook: Electroweak Physics and the Early Universe; Jorge C. Rom?o,Filipe Freire Book 1994 Springer Science+Business Media New York 1994 Potential

圍巾

Electroweak Baryogenesis: Problems and Prospects,s sectors to boost the level of . violation in the standard model. Both ‘local’ and ‘nonlocal’ mechanisms seem viable, although accurate methods of calculating the asymmetry are still being developed. The ‘nonlocal’ τ lepton scenario appears the most tractable in this regard. I then discuss a new sc

膠狀

怕失去錢

Longitude

乳白光

人工制品

sundowning

收集

Electroweak Baryogenesis with Topological Defects,o the order of the electroweak phase transition. We briefly review a mechanism [2] using unstable electroweak strings [3] and discuss in detail a mechanism [4] using topological defects (in particular cosmic strings) left behind after a previous phase transition.

CONE

Monotonous

Electroweak Strings Produce Baryons,tain the same abundance of baryons and antibaryons. However there exist compelling empirical evidence that the universe is made out of matter with relative few antimatter. From the present asymmetry we can extrapolate that at the energy scale of the electroweak phase transition there was one part in