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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

Topological Diagrams and Hadronic Weak Decays of Charmed Baryons

classification hep-ph hep-ex
keywords decayamplitudescharmeddecaysmeasuredmodesphasepredicted
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 3 Pith papers

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

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

    hep-ph 2026-03 accept novelty 6.0

    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

    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. Topological Diagram Analysis of Charmed Baryon Decays with Vector Mesons

    hep-ph 2026-05 conditional novelty 5.0

    Five independent TDA amplitudes, each with four partial-wave components, describe Bc o BV decays; global fits show tensor couplings are essential and most measured rates agree with data.