Conveners
Monday Afternoon (20min talks + 10min discussions)
- Leticia Palhares (UERJ)
Light meson ($\pi,\sigma, a_0$) properties in the environment with chiral im-
balance will be analyzed with the help of meson effective lagrangian
associated with QCD. New spatial parity violating decays of scalar
meson arise as a result of mixing of $\pi$ and $a_0$ mesons. The pion electro-
magnetic formfactor obtains an unusual parity-odd contribution. Pion
effective masses vanish in flight....
The Green's functions of QCD encode the properties of hadrons, with the appearance of (colour singlet) poles in n-point functions corresponding to bound-states and resonances. There are several techniques by which such information may be extracted, including lattice QCD and functional methods. We discuss recent progress in applying nPI effective action techniques to the systematic truncation...
I will review results for the light baryon spectrum, obtained from solving the genuine three-body equation as well as its quark-diquark simplification. The basic ingredients are QCD's n-point functions which are solved self-consistently. This allows for a combined description of baryons, light and heavy mesons, tetraquarks and other observables from the same underlying building blocks. The...
In this talk I review the status of an ongoing study that is aimed at solving the quark propagator Dyson-Schwinger equation (qDSE) in the complex domain. Knowledge of the propagator's analytic properties is required for bound state equations, but can also potentially provide insights into fundamental phenomena such as confinement through its spectral characteristics. Using only the infrared...
