Charmed baryon weak decays with SU(3) flavor symmetry

A bstract We study the semileptonic and non-leptonic charmed baryon decays with SU(3) flavor symmetry, where the charmed baryons can be B c = (Ξ c 0 , Ξ c + , Λ c + ), B c ′ = ( Σ c (++,+,0) , Ξ c ′ (+,0) , Ω c 0 ), B cc = (Ξ cc + + , Ξ cc + , Ω c + ) or B cc = Ω ccc + + . With B n (′) denoted as the baryon octet (decuplet), we find that the B c → B n ′ ℓ + ν ℓ decays are forbidden, while the Ω c 0 → Ω − ℓ + ν ℓ , Ω cc + → Ω c 0 ℓ + ν ℓ , and Ω ccc + + → Ω cc + ℓ + ν ℓ decays are the only existing Cabibbo- allowed modes for B c ′ → B n ′ ℓ + ν ℓ , B cc → B c ′ ℓ + ν ℓ , and B ccc → B cc (′) ℓ + ν ℓ , respectively. We predict the rarely studied B c → B n (′) M decays, such as $$ {B}({Ξ}_c^0→ {Λ}^0{K̄}^0,{Ξ}_c⁺→ {Ξ}^0{π}⁺)=(8.3± 0.9,\ 8.0± 4.1)× {10}⁻³0.5em and0.5em {B}({Λ}_c⁺→ {Δ}⁺⁺{π}⁻,{Ξ}_c^0→ {Ω}⁻{K}⁺)=(5.5± 1.3,0.5em 4.8± 0.5)× {10}⁻³ $$ ℬ Ξ c 0 → Λ 0 K ¯ 0 , Ξ c + → Ξ 0 π + = 8.3 ± 0.9 , 8.0 ± 4.1 × 10 − 3 and ℬ Λ c + → Δ + + π − , Ξ