The nonleptonic decays of double-charmed baryon Ω_cc⁺ within the nonrelativistic quark model

2025/12/15 by Y. Li, Yu-Shuai Li, Li, Yu-Shuai · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2512.13086

Abstract

In this work, we investigate the two-body nonleptonic decays of double-charmed baryon Ω_cc⁺ within a nonrelativistic quark model, in which the nonfactorizable amplitudes contributed by W-exchange diagrams are evaluated under pole model assumption. To reduce sensitivity of decay amplitudes to arbitrary choice of baryon wave functions, we adopted charmed baryon wave functions obtained by solving the Schrödinger equation with a nonrelativistic quark potential model. Our results show that the branching fractions of CF decays Ω_cc⁺→Ω_c⁰π⁺ and Ξ_c^(′)+π⁺, as well as the SCS decays Ω_cc⁺→Ω_c⁰K⁺, Σ_cc⁺⁺K^-, Ξ_c^′+η and Λ_c⁺K⁰ can reach up to a few percents. Particularly for the Ω_cc⁺→Ω_c⁰K⁺ mode, owing to the large factorizable amplitude and constructive pole contributions, the branching fraction is comparable to CF decays. These decay modes can serve as the discovery channels for the double-charmed baryon Ω_cc⁺ in future experiments like LHCb and Belle II.

Citations

• Hadronic weak decays of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math> in the quark model

Cited by

• Singly Cabibbo-suppressed hadronic weak decays of the Ω^- hyperon

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