Meson and glueball spectra with the relativistic flux tube model

Abstract

The mass spectra of heavy and light mesons is computed within the framework of the relativistic flux tube model. A good agreement with the experimental data is obtained provided that the flux tube contributions, including retardation and spin-orbit effects, are supplemented by a one-gluon-exchange potential, a quark self-energy term and instanton-induced interactions. No arbitrary constant is needed to fit the absolute scale of the mass spectra, and the different parameters are fitted on lattice QCD in order to strongly restrict the arbitrariness of our model. The relevance of the present approach is discussed in the case of glueballs, and the glueball spectrum we compute is compared to the lattice QCD one. Finally, we make connections between the results of our model and the nature of some newly discovered experimental states such as the f_0(1810), X(3940), Y(3940), etc.

arXiv comment34 pages, 3 tables, 7 figures; references added and corrected in version 2; version 3 accepted in PRC, new results added concerning light mesons

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• Universal description of radially excited heavy and light vector mesons
• The mass spectrum and strong decays of isoscalar tensor mesons
• Bottomonium spectrum in the relativistic flux tube model
• Gluons in glueballs: Spin or helicity?
• Identification of newly observed singly charmed baryons using relativistic flux tube model
• Semirelativistic potential model for three-gluon glueballs
• Note on universal description of heavy and light mesons
• Glueball phenomenology and the relativistic flux tube model
• The tight knot spectrum in QCD
• Identifying Glueball at 3.02 GeV in Baryonic $B$ Decays
• Mass formula for strange baryons in large $N_c$ QCD versus quark model
• The sigma meson from QCD sum rules for large-$N_c$ Regge spectra
• Short-range potentials from QCD at order $g^2$
• Electromagnetic couplings of radially excited light vector mesons from QCD sum rules
• Gluelump model with transverse constituent gluons
• Gluon-Glueball Duality and Glueball Searches
• Lagrangian alternative to QCD string
• The large-Nc limit of borelized spectral sum rules and the slope of radial Regge trajectories
• The case of equivalence of low and high energy constraints on Regge vector spectrum in AdS/QCD
• Effective potential between two transverse gluons from lattice QCD
• A First-Quantized Model For Unparticles and Gauge Theories Around Conformal Window