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Higgs mechanism near the 5d bulk phase transition
Nikos Irges, Francesco Knechtli, Kyoko Yoneyama
We present a non-perturbative model of Gauge-Higgs Unification. We consider a five-dimensional pure SU(2) gauge theory with orbifold boundary conditions along the fifth dimension,…
Application of Domain Decomposition to the Evaluation of Fermion Determinant Ratios
Jacob Finkenrath, Francesco Knechtli, Björn Leder
We analyze the fluctuations in the case of mass reweighting for N_f=2 Wilson fermions. We use a domain decomposition factorization of the fermion determinant. Ratios of determinant…
Gauge-Higgs Unification on the Lattice
Nikos Irges, Francesco Knechtli, Kyoko Yoneyama
The simplest Gauge-Higgs Unification model is a five-dimensional SU(2) gauge theory compactified on the S^1/Z_2 orbifold, such that on the four-dimensional boundaries of space-time…
Mean-Field Gauge Interactions in Five Dimensions II. The Orbifold
Nikos Irges, Francesco Knechtli, Kyoko Yoneyama
We study Gauge-Higgs Unification in five dimensions on the lattice by means of the mean-field expansion. We formulate it for the case of an SU(2) pure gauge theory and orbifold bou…
The strange quark mass and Lambda parameter of two flavor QCD
Patrick Fritzsch, Francesco Knechtli, Björn Leder +4
We complete the non-perturbative calculations of the strange quark mass and the Lambda parameter in two flavor QCD by the ALPHA collaboration. The missing lattice scale is determin…
Fermions as Global Correction: the QCD Case
Jacob Finkenrath, Francesco Knechtli, Björn Leder
It is widely believed that the fermion determinant cannot be treated in global acceptance-rejection steps of gauge link configurations that differ in a large fraction of the links.…