English

Phenomenology of $J^{PC} = 3^{--}$ tensor mesons

High Energy Physics - Phenomenology 2021-06-02 v2

Abstract

We study the strong and radiative decays of the anti-quark-quark ground state JPC=3J^{PC} = 3^{--} (n2S+1LJ=13D3n^{2 S + 1} L_J = 1^3 D_3) nonet {ρ3(1690)\rho_{3} (1690), K3(1780)K_{3}^{\ast} (1780), ϕ3(1850)\phi_{3} (1850), ω3(1670)\omega_{3} (1670)} in the framework of an effective quantum field theory approach, based on the SUV(3)SU_\mathrm{V}(3)-flavor-symmetry. The effective model is fitted to experimental data listed by the Particle Data Group. We predict numerous experimentally unknown decay widths and branching ratios. An overall agreement of theory (fit and predictions) with experimental data confirms the qˉq\bar{q} q nature of the states and qualitatively validates the effective approach. Naturally, experimental clarification as well as advanced theoretical description is needed for trustworthy quantitative predictions, which is observed from some of the decay channels. Besides conventional spin-33 mesons, theoretical predictions for ratios of strong and radiative decays of a hypothetical glueball state G3(4200)G_3 (4200) with JPC=3J^{PC} = 3^{--} are also presented.

Keywords

Cite

@article{arxiv.2101.03195,
  title  = {Phenomenology of $J^{PC} = 3^{--}$ tensor mesons},
  author = {Shahriyar Jafarzade and Adrian Koenigstein and Francesco Giacosa},
  journal= {arXiv preprint arXiv:2101.03195},
  year   = {2021}
}

Comments

20 pages (+ 25 pages of appendices and references), v2: small modifications of the main text; App. A was added; corrected typos; added references