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The renormalization flow in the adjoint SU(2) lattice Higgs model
Institution:2. Fakultät für Physik, Universität Bielefeld, D-4800 Bielefeld, F.R. Germany;3. Institut für Theoretische Physik, Universität Graz, A-8010 Graz, Austria;1. Laboratoire Charles Coulomb UMR 5221 & CNRS, Université Montpellier 2, 34095 Montpellier, France;2. Institute for Theoretical Physics, Utrecht University, The Netherlands;3. Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands;1. Department of Physics, Wuppertal University, Gaussstr. 20, D-42119 Wuppertal, Germany;2. Jülich Supercomputing Centre, Forschungszentrum Jülich, D-52425 Jülich, Germany;3. University of Graz, Institute for Physics, A-8010 Graz, Austria;1. CP3-Origins, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark;2. PRISMA Cluster of Excellence and Institute for Nuclear Physics, Johannes Gutenberg-Universität, 55099 Mainz, Germany;3. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;4. Dept. of Physics, University of Wuppertal, Gaussstrasse 20, D-42119, Germany;5. School of Mathematics, Trinity College Dublin, Dublin 2, Ireland;6. Dept. of Mathematics, Hurstpierpoint College, College Lane, Hassocks, West Sussex, BN6 9JS, United Kingdom;7. Dept. of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA
Abstract:Applying the Monte Carlo renormalization group method we investigate the flow of coupling constants for the 84 and 164 SU(2) lattice Higgs model with triplet Higgs fields. The couplings of the renormalized actions are determined using Schwinger-Dyson equations. From the flow we find new evidence for the existence of a tricritical point at finite values of the inverse gauge coupling β but no indication for a discontinuity fixed point.
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