Structure of dimension-six derivative interactions in pseudo Nambu-Goldstone N Higgs doublet models

Details Structure of dimension-six derivative interactions in pseudo Nambu-Goldstone N Higgs doublet models Structure of dimension-six derivative interactions in pseudo Nambu-Goldstone N Higgs doublet models

2011-11-09

arxiv.org/abs/1111.2120v2

Phys.Rev.D:85 (2012) 075021

Physics

High Energy Physics

High Energy Physics - Phenomenology

49 pages, 10 figures

Scientific paper

10.1103/PhysRevD.85.075021

We derive the general structure of dimension-six derivative interactions in the N Higgs doublet models, where Higgs fields arise as pseudo Nambu-Goldstone modes of a strongly interacting sector. We show that there are several relations among the dimension-six operators, and therefore the number of independent operators decreases compared with models on which only SU(2)_L x U(1)_Y invariance is imposed. As an explicit example, we derive scattering amplitudes of longitudinal gauge bosons and Higgs bosons at high energy on models involving two Higgs doublets, and compare them with the amplitudes in the case of one Higgs doublet.

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