Conveners
Monday Morning (20min talks + 10min discussions)
- Robert Kaminski
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Prof. Alfred Stadler (University of Évora, and CFTP, University of Lisbon)08/05/2017, 08:30
We use the Covariant Spectator Theory (CST) to calculate the mass spectrum and relativistic vertex functions of mesons as quark-antiquark bound states in which at least one of the quarks is either a charm or bottom quark. The quark-antiquark bound-state equation in CST is, similar to the Bethe-Salpeter equation, an integral equation in which the kernel consists of two-particle irreducible...
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Dr Elmar P. Biernat (Centro de Física Teórica de Partículas (CFTP), Instituto Superior Técnico (IST), Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal)08/05/2017, 09:00
We present results for the electromagnetic form factors of the $\rho$ meson obtained within point-form relativistic quantum mechanics. In our formalism for the calculation of the meson current we treat elastic electron-meson scattering as a Poincaré-invariant coupled-channel problem for a Bakamjian-Thomas mass operator. From the resulting invariant one-photon-exchange amplitude we extract the...
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Mario Mitter08/05/2017, 09:30
We present first-principle results for the 1PI correlation functions of two-flavour Landau-gauge QCD in the vacuum. These correlation functions carry the full information about the theory. They are obtained by solving their Functional Renormalisation Group equations in a systematic vertex expansion, aiming at apparent convergence. This work represents an indispensable and pivotal prerequisite...
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Jorge Morais (FCTUC / CFisUC)08/05/2017, 10:00
An NJL-type three-flavor quark model with a complete set of explicit
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chiral symmetry breaking terms is extended to include vector and axial vector
effective interaction terms. A suitable bosonization procedure is implemented
and discussed. The bosonized Lagrangian is written up to quadratic order in the
bosonic fields and the role of the new interactions is analysed in detail. The
model's... -
Leticia Palhares (UERJ)08/05/2017, 11:00
In this talk we discuss recent developments in the quantization of Yang-Mills theories in the non-perturbative regime and possible phenomenological applications. In particular, we discuss how the procedure that takes into account the presence of Gribov copies in the gauge path integral has led to the construction of a scenario of gluon confinement via an infrared effective action, the...
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Nelson Braga (Universidade Federal do Rio de Janeiro)08/05/2017, 11:30
Holographic AdS/QCD models provide a tool for calculating the spectra of glueballs and light mesons and baryons. In this talk we discuss some recent AdS/QCD models that extend the hadronic description to the case of heavy vector mesons.
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Then we consider the finite temperature version of such a model in order to represent the thermal effects of a medium like the plasma in the states of heavy...