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What has the Higgs Boson got to do with Cosmology?

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If you have a question about this talk, please contact Yi Wang.

We look at how the (Brout-Englert-)Higgs Boson fits together with Cosmology, in particular we discuss the different ways that the Higgs can play a role in inflation. We will also discuss the constraints on the stability of the Higgs vacuum in the standard model and how such issues become much more acute if there is a period of cosmological inflation. We therefore describe how the Higgs vacuum places constraints on physics beyond the standard model and on the nature of the inflaton field. We’ll also touch on the electroweak phase transition and how new physics such as dark matter might make it more interesting (i.e. fun first order instead of boring second order).

This talk is part of the Cosmology Lunch series.

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