Classically Conformal B-L extended Standard Model

Details Classically Conformal B-L extended Standard Model Classically Conformal B-L extended Standard Model

2009-02-24

arxiv.org/abs/0902.4050v3

Phys.Lett.B676:81-87,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 4 figures, 2 figures and a discussion on the theoretical upper bound of the B-L breaking added, to appear in Physics

Scientific paper

Under a hypothesis of classically conformal theories, we investigate the minimal B-L extended Standard Model, which naturally provides the seesaw mechanism for explaining tiny neutrino masses. In this setup, the radiative gauge symmetry breaking is successfully realized in a very simple way: The B-L gauge symmetry is broken through the conformal anomaly induced by quantum corrections in the Coleman-Weinberg potential. Associated with this B-L symmetry breaking, the Higgs mass parameter is dynamically generated, by which the electroweak symmetry breaking is triggered. We find that a wide range of parameter space can satisfy both the theoretical and experimental requirements.

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