Strong one-pion decay of ground state charmed baryons

Abstract

We evaluate the widths for the strong decays $Σ_c\toΛ_c π$, $Σ_c^*\toΛ_c π$ and $Ξ_c^{*}\toΞ_c π$. The calculations have been done within a nonrelativistic constituent quark model with wave functions that take advantage of the constraints imposed by heavy quark symmetry. Partial conservation of axial current hypothesis allows us to determine the strong vertices from an analysis of the weak axial current matrix elements. Our results are in good agreement with experimental data.

3 latex pages. Contribution to the Proceedings of the Particles and Nuclei International Conference (PANIC05). Santa Fe (NM) Oct 24-28, 2005