The Higgs boson resonance width from a chiral Higgs-Yukawa model on the lattice

Details The Higgs boson resonance width from a chiral Higgs-Yukawa model on the lattice The Higgs boson resonance width from a chiral Higgs-Yukawa model on the lattice

2011-11-21

arxiv.org/abs/1111.4789v2

Physics

High Energy Physics

High Energy Physics - Lattice

Included figures of cross-sections, corrected one data entry in table 3, version accepted in PLB

Scientific paper

The Higgs boson is a central part of the electroweak theory and is crucial to generate masses for quarks, leptons and the weak gauge bosons. We use a 4-dimensional Euclidean lattice formulation of the Higgs-Yukawa sector of the electroweak model to compute physical quantities in the path integral approach which is evaluated by means of Monte Carlo simulations thus allowing for fully non perturbative calculations. The chiral symmetry of the model is incorporated by using the Neuberger overlap Dirac operator. The here considered Higgs-Yukawa model does not involve the weak gauge bosons and furthermore, only a degenerate doublet of top- and bottom quarks are incorporated. The goal of this work is to study the resonance properties of the Higgs boson and its sensitivity to the strength of the quartic self coupling.

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