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Abstract: Top interactions beyond the Standard Model can be conveniently described inthe framework of gauge-invariant effective operators. We briefly review thegeneral form of the fermion-fermion-gauge boson and fermion-fermion-Higgsinteractions arising from dimension-6 operators, focusing on the top quark. Wediscuss in detail an expansion in powers of 1-Lambda^2, where Lambda is the newphysics scale, to consistently calculate observables in terms of top anomalouscouplings.



Author: J. A. Aguilar-Saavedra

Source: https://arxiv.org/



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