Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-04-12
Eur.Phys.J.C65:523-536,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages
Scientific paper
10.1140/epjc/s10052-009-1211-z
If Lorentz symmetry is violated at high energies, interactions that are usually non-renormalizable can become renormalizable by weighted power counting. Recently, a CPT invariant, Lorentz violating extension of the Standard Model containing two scalar-two fermion interactions (which can explain neutrino masses) and four fermion interactions (which can explain proton decay) was proposed. In this paper we consider a variant of this model, obtained suppressing the elementary scalar fields, and argue that it can reproduce the known low energy physics. In the Nambu--Jona-Lasinio spirit, we show, using a large N_c expansion, that a dynamical symmetry breaking takes place. The effective potential has a Lorentz invariant minimum and the Lorentz violation does not reverberate down to low energies. The mechanism generates fermion masses, gauge-boson masses and scalar bound states, to be identified with composite Higgs bosons. Our approach is not plagued by the ambiguities of approaches based on non-renormalizable vertices. The low-energy effective action is uniquely determined and predicts relations among parameters of the Standard Model.
No associations
LandOfFree
Standard Model Without Elementary Scalars And High Energy Lorentz Violation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Standard Model Without Elementary Scalars And High Energy Lorentz Violation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Standard Model Without Elementary Scalars And High Energy Lorentz Violation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-240192