Low energy pion-${\Lambda }_b$ interaction

Abstract

In this work we study the low energy pion-${\Lambda }_b$ interaction considering effecective chiral Lagrangians that include pions, baryons and the corresponding resonances. Interactions mediated by a $\sigma$ meson exchange are also considered. The scattering amplitudes are calculated and then we determine the angular distributions and polarizations.

Comments: 8 pages, 7 figures