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Imprints of the Standard Model in the Sky?

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If you have a question about this talk, please contact Tommaso Giannantonio.

The existence of the Standard Model (SM) Higgs implies that a background of gravitational waves (GW) is generated by the decay products of the Higgs, soon after the end of inflation. Theoretically, all SU(2)L gauge and Yukawa couplings of the SM are imprinted as features in the GW spectrum. However, in practice, the signal from the most strongly coupled species dominate, rendering inaccesible the information on the other species. This background could be used for inferring properties of particle physics, including beyond the SM, at energies way above the reach of LHC . To measure this background, however, new high frequency GW detection technology is required.

This talk is part of the Cosmology Lunch series.

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