Speaker
Yuta Hamada
(KEK)
Description
On the one hand, it is known that the electroweak symmetry breaking (EWSB) in the Standard Model (SM) is a crossover. On the other hand, in the last decade, the notion of the symmetry has been greatly generalized by recognizing that the symmetry is equivalent to the presence of the topological operators. This enables us to discover new symmetries in the SM. After reviewing how these new symmetries are consistent with quantum gravity, we argue the status of the EWSB taking into account the generalized symmetry. The cosmological magnetic fields can be viewed as the consequence of the spontaneously broken magnetic symmetry. We also present a computation of the mixing angle during the EWSB in a gauge-invariant way.
