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.
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...
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...
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...
