Combined Chiral Dynamics and MIT Bag Model Study of Strong Σ^{(*)}_Q \to Λ_QπDecays

Abstract

The strong decays of the heavy baryons Σ^{(*)}_Q \to Λ_Q πare studied by combining the chiral dynamics and the MIT bag model. In charm sector, we calculate the decay widths Γ(Σ^{(*)}_c\to Λ_cπ) and compare with the experimental data and other theoretical estimations. In addition, we also predict the strong decay widths Γ(Σ^{(*)}_b\to Λ_bπ).

arXiv comment15 pages, 1 figure, typos corrected, references added. Accepted for pubblication in Eur. Phys. J. C

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• Charm-strange baryon strong decays in a chiral quark model
• Strong decay of ${\Lambda }_c(2940)$ as a $2P$ state in the ${\Lambda }_c$ family
• Strong decays of heavy baryons in Bethe-Salpeter formalism
• Interpretation of the newly observed ${\Lambda }_b(6146{)}^0$ and ${\Lambda }_b(6152{)}^0$ states in a chiral quark model
• Measurement of the masses and widths of the bottom baryons Sigma_b+- and Sigma_b*+-
• Strong and radiative decays of heavy mesons in a covariant model
• Spectra and decay properties of ${\Lambda }_b$ and ${\Sigma }_b$ baryons
• Study of the strong ${\Sigma }_b\to {\Lambda }_b\pi$ and ${\Sigma }_b^{\ast }\to {\Lambda }_b\pi$ in a non-relativistic quark model
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• Decay widths and mass spectra of single bottom baryons
• Three symmetry breakings in strong and radiative decays of strange heavy mesons
• Model-independent analysis for determining mass splittings of heavy baryons