TH BSM Forum

Audible Gravitational Echoes of New Physics

by Antonio Morais (Universidade de Aveiro)

Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
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Description

The discovery of Gravitational Waves (GW) opened up a new channel for New Physics (NP) studies. The LISA mission will offer a range of frequencies relevant for the Electroweak Phase Transition while the combined reach of future facilities such as BBO, the Einstein Telescope (ET) or the Cosmic Explorer, are being designed to operate in a frequency range that can probe scales up to 10 PeV, otherwise beyond the reach of collider experiments. In this talk we focus on LISA and its potential for finding NP evidence from measurements of the Stochastic GW Background (SGWB). As a benchmark scenario, we study a version of the low-scale Majoron model equipped with an inverse seesaw mechanism for neutrino mass generation and lepton-number symmetry. In particular, we discuss under which circumstances the model can be probed at LISA and which implications result for collider physics observables, such as the Higgs trilinear coupling, the scalar mixing angle and the mass of a new CP-even Higgs boson. If time allows, we will also report on a scenario of symmetry restoration at zero temperature based on a model with two scalar leptoquarks.

Videoconference
BSM Forum
Zoom Meeting ID
65562333965
Host
Elena Gianolio
Alternative hosts
Matthew Philip Mccullough, Joachim Kopp, Nicholas Llewellyn Rodd, Marzia Bordone, Pascal Pignereau, Benoit Loyer, Tim Cohen
Passcode
01055539
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