English

States generated in the $K$-multi-$\rho$ interactions

High Energy Physics - Phenomenology 2015-09-16 v3 Nuclear Theory

Abstract

In the present work we use three-body interaction formalism to investigate the KK-multi-ρ\rho interactions. First, we reproduced the resonances f2(1270)f_2(1270) and K1(1270)K_1(1270) in the ρρ\rho \rho and ρK\rho K two-body interactions respectively, as the clusters of the fixed center approximation. Then, we study the three-body Kρρ(f2)K -\rho \rho (f_2) and ρρK(K1)\rho - \rho K (K_1) interactions with the fixed center approximation of the Faddeev equations. Furthermore, we extrapolate the formalism to study the four-body, five-body and six-body systems, containing one KK meson and multi-ρ\rho mesons. In our research, without introducing any free parameters, we generate the K2(1770)K_2 (1770) state in the three-body interaction with the mass of 1707 MeV and a width about 113 MeV, which are consistent with the experiments. We also find a clear resonant structure in our results of the five-body interaction, with a mass 2505 MeV and a width about 32 MeV or more, which is associated to the K4(2500)K_4 (2500) state, where we obtain consistent results with the experimental findings. Furthermore, we predict some new states in the other many body interactions, K3(2080)K_3 (2080), K5(2670)K_5 (2670) (isospin I=1/2I=1/2), and K4(2640)K_4 (2640) (isospin I=3/2I=3/2), with uncertainties.

Keywords

Cite

@article{arxiv.1501.07834,
  title  = {States generated in the $K$-multi-$\rho$ interactions},
  author = {C. W. Xiao},
  journal= {arXiv preprint arXiv:1501.07834},
  year   = {2015}
}

Comments

Updated version: comments and references added, accepted by PRD

R2 v1 2026-06-22T08:16:47.070Z