[Triumf-seminars] TRIUMF Theory Seminar today at 13:00

[TRIUMF Seminars]

Date/Time: Wed 2019-07-10 at 13:00

Location:  Theory              

Speaker:   David Weir (U Helsinki)

Title:     Gravitational waves from a strong electroweak phase transition

Abstract: In the Standard Model, the electroweak phase transition is a crossover. In many extensions, the phase transition can be of first order - even strongly so. The resulting phase transition results in collisions of bubbles of the new Higgs phase. These collisions, and the associated interactions of sound waves in the plasma, are substantial sources of gravitational waves. For a phase transition at or around the electroweak scale, these gravitational waves may be detectable by future or planned missions, such as LISA. This can indirectly provide a probe of particle physics beyond the Standard Model, complementary to future colliders. In this talk I will discuss the physics that will make this possible and present some new simulation results for strong phase transitions, showing how vorticity is generated.





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