English

$\Lambda_b \to \pi^- (D_s^-) \Lambda_c(2595),~\pi^- (D_s^-) \Lambda_c(2625)$ decays and $DN,~D^*N$ molecular components

High Energy Physics - Phenomenology 2016-11-15 v2

Abstract

From the perspective that the Λc(2595)\Lambda_c(2595) and Λc(2625)\Lambda_c(2625) are dynamically generated resonances from the DN, DNDN,~D^*N interaction and coupled channels, we have evaluated the rates for ΛbπΛc(2595)\Lambda_b \to \pi^- \Lambda_c(2595) and ΛbπΛc(2625)\Lambda_b \to \pi^- \Lambda_c(2625) up to a global unknown factor that allows us to calculate the ratio of rates and compare with experiment, where good agreement is found. Similarly, we can also make predictions for the ratio of rates of the, yet unknown, decays of ΛbDsΛc(2595)\Lambda_b \to D_s^- \Lambda_c(2595) and ΛbDsΛc(2625)\Lambda_b \to D_s^- \Lambda_c(2625) and make estimates for their individual branching fractions.

Keywords

Cite

@article{arxiv.1610.08296,
  title  = {$\Lambda_b \to \pi^- (D_s^-) \Lambda_c(2595),~\pi^- (D_s^-) \Lambda_c(2625)$ decays and $DN,~D^*N$ molecular components},
  author = {Wei-Hong Liang and Melahat Bayar and Eulogio Oset},
  journal= {arXiv preprint arXiv:1610.08296},
  year   = {2016}
}

Comments

9 pages, 3 figures; V2: new references added

R2 v1 2026-06-22T16:32:25.386Z