Chiral freedom and electroweak symmetry breaking

Abstract

Antisymmetric tensor fields with chiral couplings to quarks and leptons may induce spontaneous electroweak symmetry breaking in a model without a ``fundamental'' Higgs scalar. No microscopic local mass term for the chiral tensors or ``chirons'' is allowed by the symmetries and our model exhibits only dimensionless couplings. However, the chiral couplings are asymptotically free and therefore generate a mass scale where they grow large. We argue that at this scale mass terms for the chiral tensor fields are generated non-perturbatively - the chirons appear as new massive spin one particles. Furthermore a scalar top-antitop condensate forms, giving mass to the weak gauge bosons and fermions. In this scenario the longstanding gauge hierarchy problem finds a solution similar to the mass generation in QCD. We compute the general form of the effective action for the chiral tensors and sketch several possibilities of their detection at LHC or through precision tests of the electroweak standard model.

30 pages, 7 figures

References in corpus (7)

• Exact evolution equation for the effective potential
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• Electroweak symmetry breaking after LEP1 and LEP2
• Renormalization Flow of Bound States
• Towards a renormalizable standard model without fundamental Higgs scalar
• Antisymmetric tensor matter fields: an abelian model
• New Tensor Particles from pi -> e nu gamma and K -> pi e nu Decays

Cited by in corpus (7)

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• Top-quark and neutrino composite Higgs bosons
• Fermion flavor mixing in models with dynamical mass generation
• Asymptotically free four-fermion interactions and electroweak symmetry breaking
• Dynamical electroweak symmetry breaking due to strong Yukawa interactions
• Quantization of chiral antisymmetric tensor fields
• Chiral tensor fields and spontaneous breaking of Lorentz symmetry