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We consider a chirally invariant lattice Higgs-Yukawa model based on the Neuberger overlap operator D (ov). As a first step towards the eventual determination of Higgs mass bounds we present the phase structure of the model analytically in the large N f-limit in the physically interesting region of the Yukawa coupling constant. We confront the analytically… (More)

In the past the construction of Higgs-Yukawa models on the lattice was blocked by the lack of a consistent definition of a chiral invariant Yukawa coupling term. Here, we consider a chiral invariant Higgs-Yukawa model based on the overlap operator D (ov) realized by the Neuberger-Dirac operator. As a first step towards a numerical examination of this model… (More)

We study the parameter dependence of the Higgs mass in a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the elec-troweak Standard Model. Eventually, the aim is to establish upper and lower Higgs mass bounds. Here we present our preliminary results on the lower Higgs mass bound at… (More)

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