Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

Revisiting electroweak phase transitions in SM with a singlet scalar: gauge artifact issue

Jul 6, 2018, 12:00 PM
15m
202 (COEX, Seoul)

202

COEX, Seoul

Parallel Beyond the Standard Model Astro-particle Physics and Cosmology

Speaker

Dr Eibun Senaha (IBS)

Description

First-order electroweak phase transition plays a central role in electroweak baryogenesis.
However, it is known that unwanted gauge dependence exists in critical temperature
and Higgs vacuum expectation value in an ordinary perturbative calculation scheme.
In this talk, we revisit the electroweak phase transition in the SM with a singlet scalar
utilizing a gauge-independent method proposed by Patel and Ramsey-Musolf
and make a comparison with previous results. Impact on deviation of triple Higgs coupling
from the standard model is also discussed.

Primary author

Co-authors

Prof. Cheng-Wei Chiang (National Taiwan University) Mr Yen-Ting Lee (National Taiwan Univerisity)

Presentation materials