Semileptonic $Λ_c \to Λ\ell ν_\ell$ Decays in Light-Cone QCD Sum Rules with $Λ_c$ Distribution Amplitudes
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909867789254656 |
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| author | Aliev, T. M. Bilmis, S. Savci, M. |
| author_facet | Aliev, T. M. Bilmis, S. Savci, M. |
| contents | We study the semileptonic decay of its SU(3) partner, the $Λ_c \to Λ\ell^+ ν_\ell$ ($\ell = e, μ$) transition, within the framework of light-cone QCD sum rules (LCSR) by using the distribution amplitudes of heavy $Λ_c$ baryon. The numerical analysis is performed using two different sets of $Λ_c$ baryon light-cone distribution amplitudes. The resulting form factors are parametrized by a model-independent $z$-series expansion and used to compute the differential and total decay widths. Our predictions for the branching fractions are in good agreement with the latest BESIII measurements and with lattice-QCD results. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_21409 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Semileptonic $Λ_c \to Λ\ell ν_\ell$ Decays in Light-Cone QCD Sum Rules with $Λ_c$ Distribution Amplitudes Aliev, T. M. Bilmis, S. Savci, M. High Energy Physics - Phenomenology We study the semileptonic decay of its SU(3) partner, the $Λ_c \to Λ\ell^+ ν_\ell$ ($\ell = e, μ$) transition, within the framework of light-cone QCD sum rules (LCSR) by using the distribution amplitudes of heavy $Λ_c$ baryon. The numerical analysis is performed using two different sets of $Λ_c$ baryon light-cone distribution amplitudes. The resulting form factors are parametrized by a model-independent $z$-series expansion and used to compute the differential and total decay widths. Our predictions for the branching fractions are in good agreement with the latest BESIII measurements and with lattice-QCD results. |
| title | Semileptonic $Λ_c \to Λ\ell ν_\ell$ Decays in Light-Cone QCD Sum Rules with $Λ_c$ Distribution Amplitudes |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.21409 |