Strong one-pion decay of $Σ_c$, $Σ_c^*$ and $Ξ_c^*$

Details Strong one-pion decay of $Σ_c$, $Σ_c^*$ and $Ξ_c^*$ Strong one-pion decay of $Σ_c$, $Σ_c^*$ and $Ξ_c^*$

2006-10-04

arxiv.org/abs/hep-ph/0610052v1

AIPConf.Proc.892:366-368,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 latex pages. Contribution to the Proceedings of the Quark Confinement and the Hadron Spectrum VII Conference (QCHS7) Ponta D

Scientific paper

10.1063/1.2714419

Working in the framework of a nonrelativistic quark model we evaluate the widths for the strong one-pion decays $\Sigma_c\to\Lambda_c \pi$, $\Sigma_c^*\to\Lambda_c \pi$ and $\Xi_c^{*}\to\Xi_c \pi$. We take advantage of the constraints imposed by heavy quark symmetry to solve the three-body problem by means of a simple variational ansatz. We use partial conservation of the axial current hypothesis to get the strong vertices from weak axial current matrix elements. Our results are in good agreement with experimental data.

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