26–29 Oct 2021
Fully online format
Asia/Tokyo timezone

Probing electroweak phase transition via relatively heavy additional Higgs bosons at ILC

28 Oct 2021, 14:40
20m
Room #2 (Zoom Meeting ID: 823 6921 2312)

Room #2

Zoom Meeting ID: 823 6921 2312

Oral presentation using Zoom Session F: Higgs properties F-2: Higgs properties

Speaker

Masanori Tanaka (Osaka University)

Description

In this talk, we will discuss the electroweak first-order phase transition in the Two Higgs Doublet Model. First, we show that an upper bound on the mass of the second Higgs boson can be obtained by combining the sphaleron decoupling condition with perturbative unitarity and vacuum stability. This upper bound is obtained even though the h(125) coupling is standard model-like. Second, we show that both precise measurements of the triple Higgs boson coupling at ILC and gravitational wave observations through LISA, DECIGO, and BBO are important to distinguish whether the mass of the additional Higgs bosons is relatively light or heavy.

1st preferred time slot for your oral presentation 13:00-15:00 JST (6:00-8:00 CEST, 0:00-2:00 EDT, 21:00-23:00 PDT)
2nd preferred time slot for your oral presentation 15:30-17:30 JST (8:30-10:30 CEST, 2:30-4:30 EDT, 23:30-1:30 PDT)

Primary author

Masanori Tanaka (Osaka University)

Co-author

Shinya Kanemura (Osaka University)

Presentation materials