English

Strong decays of the higher excited $\Lambda_Q$ and $\Sigma_Q$ baryons

High Energy Physics - Phenomenology 2020-01-29 v2 High Energy Physics - Experiment Nuclear Theory

Abstract

In this work, we preform a systematic study of the strong decays for the higher singly heavy baryon resonances ΛQ(3S)\Lambda_Q(3S), ΛQ(2P)\Lambda_Q(2P), ΛQ(2D)\Lambda_Q(2D), ΛQ(1F)\Lambda_Q(1F), ΣQ(3S)\Sigma_Q(3S), ΣQ(2P)\Sigma_Q(2P), ΣQ(2D)\Sigma_Q(2D), and ΣQ(1F)\Sigma_Q(1F) within the 3P0^3P_0 model. Our results show that most of the λ\lambda-mode higher excited ΛQ\Lambda_Q and ΣQ\Sigma_Q states have a relatively narrow width, and mainly decay into two-body final states with one heavy meson plus one light baryon. Our calculations provide abundant theoretical information and demonstrate the general feature for these higher states, which may be valuable for future experimental searches and establishing the singly heavy baryon spectrum.

Keywords

Cite

@article{arxiv.1910.06126,
  title  = {Strong decays of the higher excited $\Lambda_Q$ and $\Sigma_Q$ baryons},
  author = {Qi-Fang Lü and Xian-Hui Zhong},
  journal= {arXiv preprint arXiv:1910.06126},
  year   = {2020}
}

Comments

16 pages, 9 figures, 17 tables, version accepted by Physical Review D