Noriyoshi Ishii
(University of Tokyo)
18/06/2010, 16:40
Hadronic structure and interactions
We propose a new method to calculate scattering amplitudes above
inelastic thresholds as an extention to the Luescher's finite volume
method for elastic scattering phase shifts.
In the inifinite volume, the asymptotic form of hadronic
Bethe-Salpeter (BS) wave functions at spatial infinity can be derived
in exactly the same manner as given in Ref.[1,2,3]. It...
Michael Buchoff
(University of Maryland, College Park)
18/06/2010, 17:00
Hadronic structure and interactions
Hadronic scattering mediated through the strong interaction has been an area of great interest for both theory and experiment. Recently, lattice QCD calculations of scattering processes from first principles have seen remarkable progress, including multiple calculations of two-pion scattering lengths that agree with experiment to within a few percent. However, there exists a certain class of...
Markus LIMMER
(Karl-Franzens-Universitaet Graz)
18/06/2010, 17:20
Hadronic structure and interactions
The variational method allows one to study the mixing of interpolators with
different chiral transformation properties in the nonperturbatively determined
physical state. It is then possible to define and calculate in a
gauge-invariant manner the chiral as well as the partial wave content of the
quark-antiquark component of a meson in the infrared, where mass is generated.
Using a ...
Julien Frison
(Centre de Physique Théorique (Marseille))
18/06/2010, 17:40
Hadronic structure and interactions
While the masses of light hadrons have been extensively studied in
lattice QCD simulations, there exist only a few exploratory
calculations of the strong decay widths of hadronic resonances. We
will present preliminary results of a computation of the rho meson
width obtained using N_f=2+1 flavor simulations. The work is based on
Luescher's formalism and its extension to moving frames.
