Wednesday weekly meeting

Wednesday 14 Apr 2021, 11:00 → 12:00 Asia/Tehran

Gholamhossein Haghighat (IPM)

General weekly meeting of the school of particles and accelerators

Meeting room link:                                                                                                                         https://meet.google.com/hkp-tout-qzi                                                                                                                                          Alternative link:                                                                                                                                                             https://www.skyroom.online/ch/ipm-particles/school-of-particles-and-accelerators-weekly-meeting

1 Gravitational waves as a probe for electroweak sector of particle physics

We study the dynamics of electroweak phase transition in a simple extension of the Standard Model where the Higgs sector is extended by adding an $SU(2)_L$-mutiplet. By making random scans over the parameters of the model, we show that there are regions consistent with constraints from collider experiments and the requirement for a strong first-order electroweak phase transition which is needed for electroweak baryogenesis. Further, we also study the power spectrum of the gravitational waves which can be generated due to the first-order phase transitions. Observation of such gravitational waves, such as by future space-based gravitational wave detectors, could yield information that is complementary to collider and dark matter experiments.

Speaker: Mr Javad Kazemi (Shahid Beheshti University)