Lattice2010

Session

Parallel 55: Applications beyond QCD

18 Jun 2010, 14:30

Villasimius, Sardinia

113. Lattice String Field Theory

Francis Bursa (University of Cambridge)

18/06/2010, 14:30

Applications beyond QCD

Abstract: String field theory is a candidate for a full non-perturbative definition of string theory. We aim to define string field theory on a space-time lattice to investigate its behaviour at the quantum level. Specifically, we look at string field theory in one dimension with a linear dilaton. We report the first results of our simulations.

126. Supersymmetry on the lattice and the status of the SYM simulations

Georg Bergner (Institutes für Theoretische Physik Universität Münster)

18/06/2010, 14:50

Applications beyond QCD

Supersymmetry has been a major interest of many theoretical investigations. These investigations should be complemented with the results of lattice simulations. However, a general formulation of supersymmetry on the lattice is still missing. I will review some strategies that allow a simulation of certain supersymmetric theories. The Münster-Desy collaboration has used the...

167. Effects of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds.

Philipp Gerhold (Humboldt-University Berlin)

18/06/2010, 15:10

Applications beyond QCD

We study the effect of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of...

284. The bulk transition of many-flavour QCD and the search for an UVFP at strong coupling

Elisabetta Pallante (University of Groningen)

18/06/2010, 15:30

Applications beyond QCD

We explore the possibility that the observed bulk transition at N_f = 12 be identified with an ultraviolet fixed point (UVFP), whose existence has been recently conjectured by Kaplan and collaborators, based on AdS/CFT. A preliminary scaling analysis favours a first order nature of the bulk phase transition. However, we argue that the AdS/CFT inspired scenario might be realized at the...