The experimental observation of $a_0(1710)$: Long awaited from Regge approach

Abstract

Recently, the BABAR (in 2021), BESIII (in 2022), and LHCb (in 2023) Collaborations reported the observation of the $a_0(1710)$ resonance. This has sparked a lively debate in the literature about the nature of this possible isospin partner of $f_0(1710)$, since the latter has long been regarded as the main candidate for the lightest glueball. We highlight the clear prediction of $a_0(1710)$ in 2007 within the Regge approach using the observed hydrogen-like degeneracy in the spectrum of light mesons. Our reanalysis of the data used shows that the prediction was reliable and thus indicates that $a_0(1710)$ and $f_0(1710)$ are conventional quark-antiquark states.

6 pages, contribution to the session-conference Rubakov70

References in corpus (12)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Mass spectra and Regge trajectories of light mesons in the relativistic quark model
• Vector meson-vector meson interaction in a hidden gauge unitary approach
• Highly Excited Mesons, Linear Regge Trajectories and the Pattern of the Chiral Symmetry Realization
• Properties of new unflavored mesons below 2.4 GeV
• Light meson spectrum and classical symmetries of QCD
• Towards understanding broad degeneracy in non-strange mesons
• Generalizing the Noether theorem for Hopf-algebra spacetime symmetries
• Hydrogen like classification for light nonstrange mesons
• The large degeneracy of excited hadrons and quark models
• Pulsed and continuous measurements of exponentially decaying systems
• Dynamical $\mathbf{O}(4)$-Symmetry in the Light Meson Spectrum within the Framework of the Regge Approach

Cited by in corpus (1)

• Role of $a_0(1710)$ in the $J/\psi \to {\rho }^{+}{\rho }^{-}\omega$ and $J/\psi \to \gamma {\rho }^0\omega$ reactions