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Semileptonic Xi_c baryon decays in the light cone QCD sum rules

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arxiv 2108.01378 v2 pith:VNKR5DUW submitted 2021-08-03 hep-ph

Semileptonic Xi_c baryon decays in the light cone QCD sum rules

classification hep-ph
keywords rulesbaryoncalculatedconedecaysfactorsformlambda
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Form factors of the weak $\Xi_c \to \Xi(\Lambda)$ transitions are calculated within the light cone QCD sum rules. The pollutions coming from the contribution of the negative parity $\Xi_c^*$ baryon is eliminated by considering the combinations of sum rules corresponding to the different Lorentz structures. Having obtained the form factors, the branching ratios of the $\Xi_c \to \Xi (\Lambda) \ell \nu$ decays are also calculated, and our predictions are compared with the results of other approaches as well as the measurements done by BELLE and ALICE Collaborations.

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  1. Semileptonic and nonleptonic weak decays of bottom baryons $\Omega^{(*)}_{b}$

    hep-ph 2025-10 conditional novelty 4.0

    QCD sum-rule calculation predicts Ω_b^*→Ω_c and Ω_b→Ω_c^* semileptonic and nonleptonic decay widths, e.g. Γ(Ω_b^*→Ω_c eν)=(1.54+0.29−0.27)×10^-14 GeV.