Details

Autor(en) / Beteiligte

• Hsiao, Y. K.
• Yi, Qian
• Cai, Shu-Ting
• Zhao, H. J.

Titel

Two-body charmed baryon decays involving decuplet baryon in the quark-diagram scheme

Ist Teil von

• The European physical journal. C, Particles and fields, 2020-11, Vol.80 (11), p.1-7, Article 1067

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2020

Quelle

SpringerLink

Beschreibungen/Notizen

• In the quark-diagram scheme, we study the charmed baryon decays of B c → B ∗ M , where B c is Λ c + or Ξ c + ( 0 ) , together with B ∗ ( M ) the decuplet baryon (pseudoscalar meson). It is found that only two W -exchange processes are allowed to contribute to B c → B ∗ M . Particularly, we predict B ( Λ c + → Σ ∗ 0 ( + ) π + ( 0 ) ) = ( 2.8 ± 0.4 ) × 10 - 3 , which respects the isospin symmetry. Besides, we take into account the SU (3) flavor symmetry breaking, in order to explain the observation of B ( Λ c + → Σ ∗ + η ) . For the decays involving Δ + + ( u u u ) , we predict B ( Λ c + → Δ + + π - , Ξ c + → Δ + + K - ) = ( 7.0 ± 1.4 , 13.5 ± 2.7 ) × 10 - 4 as the largest branching fractions in the singly Cabibbo-suppressed Λ c + , Ξ c + → B ∗ M decay channels, respectively, which are accessible to the LHCb, BELLEII and BESIII experiments.