Speaker
Markus LIMMER
(Karl-Franzens-Universitaet Graz)
Description
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 unitary transformation from the chiral basis to the $^{2S+1}L_J$ basis
one may extract a partial wave content of a meson. We present results for the
$\rho$ meson using a simulations with $N_f=2$ dynamical quarks, all for lattice
spacings close to 0.15 fm. We point out that these results indicate a simple
$^3S_1$-wave composition of the $\rho$ meson in the infrared, like in the SU(6)
flavor-spin quark model.
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Primary authors
Prof.
Christian LANG
(Karl-Franzens-Universitaet Graz)
Prof.
Leonid GLOZMAN
(Karl-Franzens-Universitaet Graz)
Markus LIMMER
(Karl-Franzens-Universitaet Graz)
