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

New No-Lose Theorem for Higgs Coupling Measurements

28 Oct 2021, 11:20
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-1: Higgs properties

Speaker

Ryo Nagai (Nagoya University)

Description

We obtain the upper bound on the new physics scale as a function
of the Higgs coupling deviation factor by considering the perturbative
unitarity of $2\to2$ scattering amplitudes among the longitudinally
polarized electroweak gauge bosons and the Higgs bosons.
We estimate the unitarity bound in a new effective field theory
which parameterizes the sizable non-decoupling effects from
the new physics in the Higgs self-couplings. Our effective field theory is
contracted based on the experimental fact that the Higgs couplings
to electroweak bosons/fermions are consistent with those predicted
in the SM within O(10%) error.

1st preferred time slot for your oral presentation 10:00-12:00 JST (3:00-5:00 CEST, 21:00-23:00 EDT, 18:00-20:00 PDT)
2nd 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)

Primary authors

Ryo Nagai (Nagoya University) Shinya Kanemura (Osaka University)

Presentation materials