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Charmed baryon $\Omega_c^0 \rightarrow \Omega^- l^+ \nu_l$ and $\Omega_c^0 \rightarrow \Omega_c^- \pi^+ (\rho^+)$ decays in light cone sum rules
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abstract
The semileptonic $\Omega_c^0 \rightarrow \Omega^- l \nu$ and non-leptonic $\Omega_c^0 \to \Omega^- \pi^+$, $\Omega_c^0 \to \Omega^- \rho^+$ decays of charmed $\Omega_c$ baryon are studied within the light cone sum rules. The form factors responsible for $\Omega_c \to \Omega$ transitions are calculated using the distribution amplitudes of $\Omega_c$ baryon. With the obtained form factors, the branching ratios of $\Omega_c^0 \to \Omega^- l^+ \nu_l$, $\Omega_c^0 \rightarrow \Omega^- \pi^+$, and $\Omega_c^0 \rightarrow \Omega^- \rho^+$ decays are estimated. The results are compared with Belle data as well as the findings of the other approaches.
Forward citations
Cited by 3 Pith papers
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Analysis of the semileptonic decays $\Sigma_b\to\Sigma_cl\bar{\nu}_l$, $\Xi'_b\to\Xi'_cl\bar{\nu}_l$ and $\Omega_b\to\Omega_cl\bar{\nu}_l$ in QCD sum rules
QCD sum-rule calculations predict Σ_b→Σ_c, Ξ'_b→Ξ'_c and Ω_b→Ω_c semileptonic widths that differ by less than 13%, supporting approximate SU(3) flavor symmetry.
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Weak decays of singly heavy baryons: the $1/2\to3/2$ case
Form factors and decay widths are computed for 1/2 to 3/2 weak transitions of Omega_c and Omega_b baryons, yielding branching-ratio predictions for semileptonic and nonleptonic modes.
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Analysis of the strong vertices $\Lambda_cD^{(*)}N^*(1535)$ and $\Lambda_bB^{(*)}N^*(1535)$ in QCD sum rules
A QCD sum rule analysis produces masses, pole residues and six on-shell strong coupling constants for the ΛcD(*)N*(1535) and ΛbB(*)N*(1535) vertices.
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