Mr
René Meyer
(Max-Planck-Instute for Physics, Munich, Germany)
27/09/2007, 16:30
We investigate the effect of a pure electric or magnetic Kalb-Ramond B-field on
the physics of a D7 brane probe in the context of the AdS/CFT correspondence,
both at finite and zero temperature. We find a confinement/deconfinement
phase transition in both cases, and chiral symmetry breaking for the magnetic
field. The general behaviour is that the magnetic field acts confining, while...
Dr
Ingo Kirsch
(ETH Zuerich)
27/09/2007, 17:00
In this talk I show how heavy-light mesons can be studied using the AdS/CFT
correspondence. For this I embed two D7 brane probes at different positions into the
dual supergravity background. I establish the non-Abelian Dirac-Born-Infeld (DBI)
action for these probes which involves a 2x2 matrix. The off-diagonal elements of
this U(2) fluctuation matrix correspond to the heavy-light mesons,...
Ms
Floriana Giannuzzi
(University of Bari and INFN sezione di Bari)
27/09/2007, 17:30
AdS/QCD correspondence is able to predict quark-antiquark potential in the static
limit [1]. We use this piece of information together with the Salpeter equation
(Schroedinger equation with relativistic kinematics) and a short range hyperfine
splitting potential to determine quark masses and quark potential parameters. Assuming
a quark-diquark structure for the S-wave low-lying baryons...
Dr
Michael Beyer
(Institut für Physik, Univ. Rostock)
27/09/2007, 18:00
We construct an approximate holographic dual of QCD from experimental hadron
properties. Conformal symmetry breaking and other IR effects are described
exclusively by deformations of the anti-de Sitter background metric. This framework
allows us to reproduce the empirically found linear square-mass trajectories of
universal slope for radially and orbitally excited hadrons. The predictions...
