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Investigation of the semileptonic decays $\Xi^{(')}_{b}\rightarrow \Xi^{(')}_{c}{\ell}\bar\nu_{\ell}$
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abstract
We study the semileptonic decays of $\Xi^{(')}_{b}\rightarrow\Xi^{(')}_{c}{\ell}\bar\nu_{\ell}$ in all lepton channels. To do this, we first obtain the form factors defining these decay modes within the framework of QCD sum rules. Then, using the transferred momentum squared-dependent form factors, we compute the decay widths and branching fractions for all lepton channels and compare the results of our calculations with those obtained from other theoretical methods. We also estimate the branching ratios and the ratio of branching fractions at different leptonic channels to provide useful information for future experiments may be planned at different Colliders. Such comparison will provide valuable information about the consistency/inconsistency of the SM theory predictions with experimental data in weak semileptonic single heavy baryon decays.
Forward citations
Cited by 3 Pith papers
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The effects of polarization on the observables in the decay $\Xi_{cc}^{++} \rightarrow \Xi_{c}^{+} \bar{\ell}\nu_{\ell}$
Polarization of the parent baryon, daughter baryon, and muon strongly reshapes branching ratios, forward-backward asymmetries, and newly defined polarization ratios in Ξ_cc++ → Ξ_c+ ℓ ν, while the μ/e LFU ratio stays ...
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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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Analysis of the semileptonic decays $\Lambda_b\to\Lambda_cl\bar{\nu}_l$ and $\Xi_b\to\Xi_cl\bar{\nu}_l$ in QCD sum rules
A QCD sum rule analysis that includes negative parity baryon states and condensates up to dimension 8 obtains Lambda_b semileptonic branching ratios near 8 percent and predicts Xi_b rates near 14 percent.
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