SU(3) symmetry breaking in charmed baryon decays

Abstract

We explore the breaking effects of the $SU(3)$ flavor symmetry in the singly Cabibbo-suppressed anti-triplet charmed baryon decays of ${\mathbf{B}}_c\to {\mathbf{B}}_{n}M$, with ${\mathbf{B}}_c=({\Xi }_c^0,{\Xi }_c^{+},{\Lambda }_c^{+})$ and ${\mathbf{B}}_n(M)$ the baryon (pseudo-scalar) octets. We find that these breaking effects can be used to account for the experimental data on the decay branching ratios of $\mathcal{B}({\Lambda }_c^{+}\to {\Sigma }^0{K}^{+},{\Lambda }^0{K}^{+})$ and $R_{K/\pi }^{\prime }$=$\mathcal{B}({\Xi }_c^0\to {\Xi }^{-}{K}^{+})$/$\mathcal{B}({\Xi }_c^0\to {\Xi }^{-}{\pi }^{+})$. In addition, we obtain that $\mathcal{B}({\Xi }_c^0\to {\Xi }^{-}{K}^{+},{\Sigma }^{-}{\pi }^{+})=(4.6\pm 1.7,12.8\pm 3.1)\times 10^{-4}$, $\mathcal{B}({\Xi }_c^0\to p{K}^{-},{\Sigma }^{+}{\pi }^{-})=(3.0\pm 1.0,5.2\pm 1.6)\times 10^{-4}$ and $\mathcal{B}({\Xi }_c^{+}\to {\Sigma }^{0(+)}{\pi }^{+(0)})=(10.3\pm 1.7)\times 10^{-4}$, which all receive significant contributions from the breaking effects, and can be tested by the BESIII and LHCb experiments.

12 pages, no figure, revised version accepted by EPJC

References in corpus (9)

• Branching ratios and direct CP asymmetries in $D\to PP$ decays
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Anti-triplet charmed baryon decays with SU(3) Flavor Symmetry
• Singly Cabibbo-suppressed hadronic decays of ${\Lambda }_c^{+}$
• Charmed Baryon Weak Decays with SU(3) Flavor Symmetry
• Direct CP asymmetry in $D\to {\pi }^{-}{\pi }^{+}$ and $D\to K^{-}{K}^{+}$ in QCD-based approach
• Non-leptonic two-body weak decays of ${\Lambda }_c(2286)$
• $K_S^0-K_L^0$ Asymmetries and $CP$ Violation in Charmed Baryon Decays into Neutral Kaons
• Axial-Vector Emitting Weak Nonleptonic Deacys of ${\Omega }_c^0$ Baryon

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