24–26 avr. 2017
Centre de Physique des Particules de Marseille
Fuseau horaire Europe/Paris

Testing naturalness through precision measurements

26 avr. 2017, 10:00
20m
Amphithéatre (Centre de Physique des Particules de Marseille)

Amphithéatre

Centre de Physique des Particules de Marseille

163, avenue de Luminy 13288 Marseille
Higgs and BSM physics Higgs and BSM

Orateur

Jeremy Bernon (Hong Kong University of Science and Technology)

Description

Symmetry-based solutions of the hierarchy problem generically predict new states that cancel the Standard Model one-loop quadratic divergence of the Higgs mass. Phenomenological investigations are generally focused on the top-partners, expected to be at the TeV scale by naturalness arguments, their quantum numbers are model-dependent. While direct LHC searches have so far turned empty-handed regarding the presence of such new particles, loop-induced observables provide complementary probes and may prove essential to fully characterize their properties. In this work, we evaluate the contributions of a selection of top-partners representations to quantities such as the Peskin-Teukachi parameters and the loop-induced Higgs couplings. In particular, we investigate whether such observables can provide a test of the required relation between the top Yukawa and top-partner couplings needed to insure the loop cancellation.

Auteur principal

Jeremy Bernon (Hong Kong University of Science and Technology)

Documents de présentation