Istituto Nazionale di Fisica Nucleare
Sezione di Firenze

Calendario eventi

Electroweak Phase Transition and Baryogenesis in Composite Higgs Models
Martedì 21 Maggio 2019, 02:30pm - 03:30pm
Visite : 85
Speakers: Benedict Von Harling (IFAE)
In this talk, I present a study of the electroweak phase transition in
composite Higgs models, where the Higgs arises from a new,
strongly-coupled sector which confines near the TeV scale. The
confinement phase transition is described in terms of the dilaton, the
pseudo-Nambu-Goldstone boson of broken conformal invariance of the
composite Higgs sector. From the analysis of the joint Higgs-dilaton
potential it is found that the electroweak phase transition in this
scenario can naturally be first-order, allowing for electroweak
baryogenesis. I then discuss how a sufficient amount of CP violation –
another key ingredient of baryogenesis – can be generated from quark
Yukawa couplings which vary during the phase transition. Together this
allows for successful electroweak baryogenesis. This scenario can be
tested in complementary ways: in EDM experiments, by searching for
dilaton production and deviations in Higgs couplings at colliders, and
through gravitational waves at LISA.
INFN Sezione di Firenze
via Sansone 1, 50019 Sesto Fiorentino (FI), Italia
tel. +39 055 457-2076 (Segreteria dell'INFN)
C.F. 84001850589 - P.I. IT04430461006  -  IPA: C3AX20
PEC firenze [at] pec infn it

NOTA! Questo sito utilizza i cookie e tecnologie simili.

Se non si modificano le impostazioni del browser, l'utente accetta. Per saperne di piu'


logo bianco
© 2016 Istituto Nazionale di Fisica Nucleare

Please publish modules in offcanvas position.