Fermionic Effective Operators and Higgs Production at a Linear Collider

Details Fermionic Effective Operators and Higgs Production at a Linear Collider Fermionic Effective Operators and Higgs Production at a Linear Collider

2007-05-04

arxiv.org/abs/0705.0554v2

Phys.Rev.D76:054009,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 9 figures, fixed typo in author names

Scientific paper

10.1103/PhysRevD.76.054009

We study the possible contributions of dimension six operators containing fermion fields to Higgs production at a 500 GeV or 1 TeV $e^+e^-$ linear collider. We show that -- depending on the production mechanism -- the effects of such operators can be kinematically enhanced relative to Standard Model (SM) contributions. We determine constraints on the operator coefficients implied by existing precision electroweak measurements and the scale of neutrino mass. We find that even in the presence of such constraints, substantial deviations from SM Higgs production cross-sections are possible. We compare the effects of fermionic operators with those associated with purely bosonic operators that have been previously discussed in the literature.

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