arXiv subjects
Publications and source records attributed to Marcelo G. L. Nogueira-Santos.
The $η$-Baryon interactions at low energies are studied in a model based in effective chiral Lagragians that take into account baryons of spin 1/2 and spin 3/2 in the intermediate states. The interacting baryons to be considered in this work are $B= N, Λ, Σ, Ξ$. We calculate the expected total and differential cross sections, phase-shifts and polarizations in the center-of-mass frame of reference for each reaction.
In this work we study the low energy pion-$Λ_b$ interaction considering effecective chiral Lagrangians that include pions, baryons and the corresponding resonances. Interactions mediated by a $σ$ meson exchange are also considered. The scattering amplitudes are calculated and then we determine the angular distributions and polarizations.
In this paper, we study the low energy kaon-hyperon interaction considering effective chiral Lagrangians that include kaons, $σ$ mesons, hyperons and the corresponding resonances. The scattering amplitudes are calculated and then we determine the angular distributions and polarizations.