**80**: 1067

https://doi.org/10.1140/epjc/s10052-020-08659-4

Regular Article - Theoretical Physics

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

School of Physics and Information Engineering, Shanxi Normal University, Linfen, 041004, China

^{*} e-mail: yukuohsiao@gmail.com

Received:
9
July
2020

Accepted:
11
November
2020

Published online:
19
November
2020

In the quark-diagram scheme, we study the charmed baryon decays of $$\mathbf{B}_c\rightarrow \mathbf{B}^* M$$, where $$\mathbf{B}_c$$ is $$\Lambda _c^+$$ or $$\Xi _c^{+(0)}$$, together with $$\mathbf{B}^*$$ (*M*) the decuplet baryon (pseudoscalar meson). It is found that only two *W*-exchange processes are allowed to contribute to $$\mathbf{B}_c\rightarrow \mathbf{B}^* M$$. Particularly, we predict $${\mathcal {B}}(\Lambda _c^+ \rightarrow \Sigma ^{*0(+)} \pi ^{+(0)})=(2.8\pm 0.4)\times 10^{-3}$$, which respects the isospin symmetry. Besides, we take into account the *SU*(3) flavor symmetry breaking, in order to explain the observation of $${\mathcal {B}}(\Lambda _c^+\rightarrow \Sigma ^{*+}\eta )$$. For the decays involving $$\Delta ^{++}(uuu)$$, we predict $${\mathcal {B}}(\Lambda _c^+\rightarrow \Delta ^{++} \pi ^-,\Xi _c^+ \rightarrow \Delta ^{++} K^-) =(7.0\pm 1.4,13.5\pm 2.7)\times 10^{-4}$$ as the largest branching fractions in the singly Cabibbo-suppressed $$\Lambda _c^+,\Xi _c^+\rightarrow \mathbf{B}^*M$$ decay channels, respectively, which are accessible to the LHCb, BELLEII and BESIII experiments.

*© The Author(s), 2020*

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Funded by SCOAP^{3}