New Axial Interactions at a TeV

Details New Axial Interactions at a TeV New Axial Interactions at a TeV

1998-07-30

arxiv.org/abs/hep-ph/9807561v2

Phys.Rev. D59 (1999) 075005

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 1 figure, PRD version

Scientific paper

10.1103/PhysRevD.59.075005

We consider a heavy fourth family with masses lying in the symmetry breaking channel of a new strong gauge interaction. This interaction generates a heavy quark axial-type operator, whose effects can be enhanced through multiple insertions. In terms of the strength of this operator we can express new negative contributions to the S and T parameters and the shifts of the Z couplings to the third family. In particular we find that the new contribution to T is strongly constrained by the experimental constraints on the Z coupling to the tau.

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