English

Non-leptonic two-body weak decays of $\Lambda_c(2286)$

High Energy Physics - Phenomenology 2017-12-05 v2 High Energy Physics - Experiment

Abstract

We study the non-leptonic two-body weak decays of Λc+(2286)BnM\Lambda_c^+(2286)\to {\bf B}_n M with Bn{\bf B}_n (MM) representing as the baryon (meson) states. Based on the SU(3)SU(3) flavor symmetry, we can describe most of the data reexamined by the BESIII Collaboration with higher precisions. However, our result of B(Λc+pπ0)=(5.6±1.5)×104{\cal B}(\Lambda_c^+ \to p\pi^0)=(5.6\pm 1.5)\times 10^{-4} is larger than the current experimental limit of 3×1043\times10^{-4} (90\% C.L.) by BESIII. In addition, we find that B(Λc+Σ+K0)=(8.0±1.6)×104{\cal B}(\Lambda_c^+ \to \Sigma^+ K^0)=(8.0\pm 1.6)\times 10^{-4}, B(Λc+Σ+η)=(1.00.8+1.6)×102{\cal B}(\Lambda_c^+ \to \Sigma^+ \eta^\prime)=(1.0^{+1.6}_{-0.8})\times 10^{-2}, and B(Λc+pη)=(12.28.7+14.3)×104{\cal B}(\Lambda_c^+ \to p \eta^\prime)=(12.2^{+14.3}_{-\,\,\,8.7})\times 10^{-4}, which are accessible to the BESIII experiments.

Keywords

Cite

@article{arxiv.1708.02460,
  title  = {Non-leptonic two-body weak decays of $\Lambda_c(2286)$},
  author = {C. Q. Geng and Y. K. Hsiao and Yu-Heng Lin and Liang-Liang Liu},
  journal= {arXiv preprint arXiv:1708.02460},
  year   = {2017}
}

Comments

12 pages, 1 figure, revised version accepted by PLB

R2 v1 2026-06-22T21:09:31.975Z