Speaker: | Suntharan Arunasalam (University of Sydney) |
---|---|
Title: | Non-standard electroweak phase transitions in extensions to the standard model: Monopoles and Scale invariance |
Date (JST): | Tue, Feb 12, 2019, 15:30 - 16:30 |
Place: | Seminar Room B |
Related File: | 2259.pdf |
Abstract: |
In this talk, I will describe the nature of the electroweak phase transition in two particular extensions to the standard model and the consequent implications on cosmology. The first model is a Born-Infeld extension of the hypercharge gauge field which allows for the existence of finite energy electroweak monopoles, the production of which can lead to a delayed, stronger EWPT and a new scenario for electroweak baryogenesis. The second model is the incorporation of spontaneously broken scale invariance due to which, the EWPT is triggered at low temperatures by the QCD chiral phase transition. |