English

$\chi_{c1}$ decays into a pseudoscalar meson and a vector-vector molecule

High Energy Physics - Phenomenology 2019-12-11 v1

Abstract

We evaluate ratios of the χc1\chi_{c1} decay rates to η\eta (η,K\eta', K^-) and one of the f0(1370)f_0(1370), f0(1710)f_0(1710), f2(1270)f_2(1270), f2(1525)f_2'(1525), K2(1430)K^{*}_2(1430) resonances, which in the local hidden gauge approach are dynamically generated from the vector-vector interaction. With the simple assumption that the χc1\chi_{c1} is a singlet of SU(3), and the input from the study of these resonances as vector-vector molecular states, we describe the experimental ratio B(χc1ηf2(1270))/B(χc1ηf2(1525))\mathcal{B}(\chi_{c1} \rightarrow \eta f_2(1270))/ \mathcal{B}(\chi_{c1} \rightarrow \eta' f_2'(1525)) and make predictions for six more ratios that can be tested in future experiments.

Keywords

Cite

@article{arxiv.1909.11906,
  title  = {$\chi_{c1}$ decays into a pseudoscalar meson and a vector-vector molecule},
  author = {Natsumi Ikeno and Jorgivan M. Dias and Wei-Hong Liang and Eulogio Oset},
  journal= {arXiv preprint arXiv:1909.11906},
  year   = {2019}
}

Comments

12 pages, 2 figures, 1 table

R2 v1 2026-06-23T11:26:28.028Z