Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Reisz T"'
Publikováno v:
Nucl.Phys. B603 (2001) 369-388
We present a numerical study of an SU(3) gauged 2D model for adjoint scalar fields, defined by dimensional reduction of pure gauge QCD in (2+1)D at high temperature. In the symmetric phase of its global Z_2 symmetry, two colourless boundstates, even
Externí odkaz:
http://arxiv.org/abs/hep-lat/0012019
Autor:
Meyer-Ortmanns, H., Reisz, T.
Dynamical linked cluster expansions are linked cluster expansions with hopping parameter terms endowed with their own dynamics. This amounts to a generalization from 2-point to point-link-point interactions. An associated graph theory with a generali
Externí odkaz:
http://arxiv.org/abs/cond-mat/0005412
Publikováno v:
Nucl.Phys. B581 (2000) 477-498
We investigate the three-dimensional SU(3) gauge theory at finite temperature in the framework of dimensional reduction. The large scale properties of this theory are expected to be conceptually more complicated than in four dimensions. The dimension
Externí odkaz:
http://arxiv.org/abs/hep-lat/0003004
Autor:
Reisz, T., Rothe, H. J.
Publikováno v:
Phys.Rev. D62 (2000) 014504
Lattice gauge theories with Wilson fermions break chiral symmetry. In the U(1) axial vector current this manifests itself in the anomaly. On the other hand it is generally expected that the axial vector flavour mixing current is non-anomalous. We giv
Externí odkaz:
http://arxiv.org/abs/hep-lat/0003003
Autor:
Reisz, T., Rothe, H. J.
Publikováno v:
Nucl.Phys. B575 (2000) 255-266
Using functional techniques, we prove, to all orders of perturbation theory, that lattice vector gauge theories with Ginsparg Wilson fermions are renormalizable. For two or more massless fermions, they satisfy a flavour mixing axial vector Ward ident
Externí odkaz:
http://arxiv.org/abs/hep-lat/9908013
Autor:
Reisz, T., Rothe, H. J.
Publikováno v:
Nucl.Phys.Proc.Suppl. 83 (2000) 965-967
We give a perturbative proof that U(1) lattice gauge theories generate the axial anomaly in the continuum limit under very general conditions on the lattice Dirac operator. These conditions are locality, gauge covariance and the absense of species do
Externí odkaz:
http://arxiv.org/abs/hep-lat/9908014
Autor:
Reisz, T., Rothe, H. J.
Publikováno v:
Phys.Lett. B455 (1999) 246-250
We give a perturbative proof that U(1) lattice gauge theories generate the axial anomaly in the continuum limit under very general conditions on the lattice Dirac operator. These conditions are locality, gauge covariance and the absense of species do
Externí odkaz:
http://arxiv.org/abs/hep-lat/9903003
Autor:
Meyer-Ortmanns, H., Reisz, T.
We outline two approaches for studying the electroweak phase transition in the framework of the four-dimensional SU(2) Higgs model on a lattice. The first one is based on a combination of variational estimates for the free energy and a solution of th
Externí odkaz:
http://arxiv.org/abs/hep-lat/9902009
Autor:
Meyer-Ortmanns, H., Reisz, T.
Publikováno v:
Nucl.Phys.Proc.Suppl. 73 (1999) 892-894
Dynamical linked cluster expansions are linked cluster expansions with hopping parameter terms endowed with their own dynamics. They amount to a generalization of series expansions from 2-point to point-link-point interactions. We outline an associat
Externí odkaz:
http://arxiv.org/abs/hep-lat/9809107
Autor:
Reisz, T.
Publikováno v:
Nucl.Phys.Proc.Suppl. 73 (1999) 462-464
Two flavour massless QCD has a second order chiral transition which has been argued to belong to the universality class of the $3d$ O(4) spin model. The arguments have been questioned recently, and the transition was claimed to be mean field behaved.
Externí odkaz:
http://arxiv.org/abs/hep-lat/9808025