Investigating hybrid mesons with $0^{+-}$ and $2^{+-}$ exotic quantum numbers

Abstract

Hybrid mesons occupy a unique position in the hadronic spectrum, offering a valuable insight into the non-perturbative nature of the glue field. Hybrid states with exotic $J^{PC}$ quantum numbers, such as the $1^{-+}$, $0^{+-}$ and $2^{+-}$, cannot mix with conventional $q\bar{q}$ mesons, making them critical for establishing the full spectrum of hybrid mesons. In this work, we investigate the masses and the strong decays of $0^{+-}$ and $2^{+-}$ hybrid mesons, which could be regarded as the first orbitally excited states of the ${\pi }_1(1600)$ and ${\eta }_1(1855)$ mesons. We develop a constituent gluon model and apply it to study the mass spectra and decay modes of these exotic states. Our results suggest that experiment may searched for these $0^{+-}$ and $2^{+-}$ hybrid mesons in the mass region between 2.0 GeV and 2.4 GeV. Additionally, we identify some key decay channels which should be targeted in future experiments.

arXiv comment12 pages, 3 figures, 9 tables, Matches the published version in the European Physical Journal C

References in corpus (27)

• Glueball Spectrum and Matrix Elements on Anisotropic Lattices
• Excited and exotic charmonium spectroscopy from lattice QCD
• The Production and Decay of Hybrid Mesons by Flux-Tube Breaking
• Hybrid Mesons
• 50 Years of Quantum Chromodynamics
• Toward the excited isoscalar meson spectrum from lattice QCD
• Hybrid and Conventional Mesons in the Flux Tube Model: Numerical Studies and their Phenomenological Implications
• Gluon excitations of the static quark potential and the hybrid quarkonium spectrum
• The lightest hybrid meson supermultiplet in QCD
• Hadrons with a heavy colour-adjoint particle
• The glueball spectrum of SU(3) gauge theory in 3+1 dimension
• Determination of the pole position of the lightest hybrid meson candidate
• Low-lying charmed and charmed-strange baryon states
• Gluelump spectrum in the QCD string model
• Decays of an exotic $1^{-+}$ hybrid meson resonance in QCD
• Precision computation of hybrid static potentials in SU(3) lattice gauge theory
• One Born$-$Oppenheimer Effective Theory to rule them all: hybrids, tetraquarks, pentaquarks, doubly heavy baryons and quarkonium
• Hybrid static potentials in SU(3) lattice gauge theory at small quark-antiquark separations
• The phenomenology of the exotic hybrid nonet with ${\pi }_1(1600)$ and ${\eta }_1(1855)$
• Hybrid Decays
• Excited and exotic bottomonium spectroscopy from lattice QCD
• Gluelump Spectrum in the Bag Model
• Hybrid adiabatic potentials in the QCD string model
• Heavy Hybrid Decays in a Constituent Gluon Model
• Light Hybrid Meson Mixing and Phenomenology
• Born-Oppenheimer Potentials for $SU(3)$ Gauge Theory
• Gluelump model with transverse constituent gluons

Cited by in corpus (2)

• Strong Decays of the Light Exotic $0^{+-}$ and $2^{+-}$ Hybrid Mesons
• Systematic study of exotic $1^{-+}$ tetraquark spectroscopy