February 28, 2020 to March 31, 2021
On Zoom
Europe/Rome timezone

Physics beyond the standard model from Higgs Parity

Mar 26, 2020, 3:00 PM
30m
On Zoom

On Zoom

https://cern.zoom.us/j/5876144043

Speaker

Keisuke Harigaya (IAS, Princeton)

Description

The discovery of the Higgs boson has revealed that the quartic Higgs self-coupling becomes small at very high energy scales. Guided by this observation, We introduce Higgs Parity, which is a spontaneously broken symmetry exchanging the standard model Higgs with its parity partner. In addition to explaining the small Higgs quartic coupling, Higgs Parity can provide a dark matter candidate, solve the strong CP problem, and arise from an SO(10) grand unified gauge symmetry. We will show that the Higgs Parity symmetry breaking scale is determined by standard model parameters and predicts experimental signals such as the dark matter direct detection rate and the proton decay rate. As a result, Higgs Parity provides a tight correlation between future precision measurements of standard model parameters and these experimental signals.

Based on:
https://arxiv.org/abs/1803.08119
https://arxiv.org/abs/1902.07726
https://arxiv.org/abs/1905.12722

Presentation materials