24–27 Sept 2013
DESY Hamburg
Europe/Berlin timezone

An asymptotic safety scenario for gauged chiral Higgs-Yukawa models

26 Sept 2013, 14:00
20m
Seminar room 4a (DESY Hamburg)

Seminar room 4a

DESY Hamburg

Particle Phenomenology Parallel Session 1: Phenomenology

Speaker

Dr Luca Zambelli (TPI, Friedrich-Schiller-Universität Jena)

Description

We investigate chiral Higgs-Yukawa models with a non-abelian gauged left-handed sector reminiscent to a sub-sector of the standard model. We discover a new weak-coupling fixed-point behavior that allows for ultraviolet complete RG trajectories which can be connected with a conventional long-range infrared behavior in the Higgs phase. Despite the weak coupling properties, the system exhibits non-Gaußian features which are distinctly different from its standard perturbative counterpart: e.g., on a branch of the line of fixed points, we find linearly instead of quadratically running renormalization constants.

Primary authors

Prof. Holger Gies (TPI, Friedrich-Schiller-Universität Jena) Dr Luca Zambelli (TPI, Friedrich-Schiller-Universität Jena) Dr Michael Scherer (Universität Heidelberg) Dr Stefan Rechenberger (Radboud University Nijmegen)

Presentation materials