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6 papers · 2 filters
Bound state structure and electromagnetic form factor beyond the ladder approximation
V. Gigante, J. H. Alvarenga Nogueira, E. Ydrefors +3
We investigate the response of the bound state structure of a two-boson system, within a Yukawa model with a scalar boson exchange, to the inclusion of the cross-ladder contributio…
: three-body final state interactions and isospin states
J. H. Alvarenga Nogueira, T. Frederico, O. Lourenço
Final state interactions are considered to formulate the meson decay amplitude for the channel. The Faddeev decomposition of the Bethe-Salpeter equation is used in order…
Hadronic molecules with a meson in a medium
T. F. Caramés, C. E. Fontoura, G. Krein +3
We study the effect of a hot and dense medium on the binding energy of hadronic molecules with open-charm mesons. We focus on a recent chiral quark-model-based prediction of a mole…
Suppressed CP asymmetry: CPT constraint
J. H. Alvarenga Nogueira, I. Bediaga, T. Frederico +2
Charge Parity asymmetry in charmless B meson decays is a key issue to be understood. Many theoretical calculations have been performed using short distance factorization approaches…
Bethe-Salpeter bound-state structure in Minkowski space
C. Gutierrez, V. Gigante, T. Frederico +3
The quantitative investigation of the scalar Bethe-Salpeter equation in Minkowski space, within the ladder-approximation framework, is extended to include the excited states. This…
The pion electromagnetic structure with self-energy
Clayton Santos Mello, J. P. B. C. de Melo, T. Frederico
We study the electromagnetic structure of the pion in terms of the quantum cromodynamic~(QCD) model on the Breit-frame. We calculated the observables, such as the electromagnetic f…