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High Energy Physics Seminar

Monday, May 2, 2022
4:00pm to 5:00pm
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Was There an Electroweak Phase Transition
Michael Ramsey-Musolf, T.D. Lee Institute/Shanghai Jiao Tong U., U Mass Amherst, Caltech,

The possible existence of beyond Standard Model physics at the TeV scale or below has important implications for the thermal history of electroweak symmetry-breaking. A first order phase transition -- not possible in the minimal Standard Model with a 125 GeV Higgs boson -- would provide the preconditions for electroweak baryogenesis and the generation of primordial gravitational radiation. I discuss recent developments in assessing this possibility that rely on the combination of EFT methods and non-perturbative (lattice) computations. I also discuss implications for high energy collider phenomenology and next generation gravitational wave searches.

The talk is in 469 Lauritsen.

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