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Topological Diagrams and Hadronic Weak Decays of Charmed Baryons

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arxiv 2401.15926 v3 pith:SJB2EALY submitted 2024-01-29 hep-ph hep-ex

Huiling Zhong , Fanrong Xu , Hai-Yang Cheng This is my paper · ORCID
classification hep-phhep-ex
keywords decayamplitudescharmeddecaysmeasuredmodesphasepredicted
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Inspired by the recent BESIII measurement of the decay asymmetry and the phase shift between $S$- and $P$-wave amplitudes in the decay $\Lambda_c^+\to \Xi^0K^+$, we perform a global fit to the experimental data of charmed baryon decays based on the topological diagrammatic approach (TDA) which has the advantage that it is more intuitive and easier to implement model calculations. The measured branching fractions and decay asymmetries are well accommodated in TDA except for three modes, in particular, the predicted ${\cal B}(\Xi_c^0\to \Xi^-\pi^+)=(2.83\pm0.10)\%$ is larger than its current value. The predicted magnitudes of $S$- and $P$-wave amplitudes and their phase shifts are presented for measured and yet-measured modes which can be tested in forthcoming experiments.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Puzzles in charmed baryon semileptonic decays with $SU(3)_F$ flavor symmetry and lattice inputs

    hep-ph 2026-03 accept novelty 6.0 of 10

    Lattice-matched SU(3)_F with first-order breaking predicts B(Ξ_c^+→Σ^0 ℓν)/B(Ξ_c^+→Ξ^0 ℓν)=(2.6±0.3)% and B(Ξ_c^+→Λ ℓν)/B(Ξ_c^+→Ξ^0 ℓν)=(1.1±0.1)%.

  2. Topological Diagram Analysis of Charmed Baryon Decays with Vector Mesons

    hep-ph 2026-05 unverdicted novelty 5.0 of 10

    Topological diagram analysis of charmed baryon decays to baryon-vector meson final states requires five parameters after applying the Korner-Pati-Woo theorem and yields branching fraction predictions consistent with e...

  3. The Cabibbo-favored hadronic weak decays of the $\Xi_c$ in the quark model

    hep-ph 2025-02 conditional novelty 5.0 of 10

    Using direct meson emission, color suppressed, and pole terms in a quark model, the authors reproduce most measured Xi_c decay branching ratios and predict asymmetry parameters, while failing one measured asymmetry sign.

  4. CP violation studies at Super Tau-Charm Facility

    hep-ex 2025-02 conditional novelty 4.0 of 10

    A future Super Tau-Charm Facility is projected to test CP violation in hyperon, tau, and charm decays at 1e-4 to 1e-3 sensitivities and improve the kaon CPT mass-difference limit tenfold.

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