Casimir scaling, glueballs and hybrid gluelumps

Abstract

Assuming that the Casimir scaling hypothesis is well verified in QCD, masses of glueballs and hybrid gluelumps (gluon with a point-like $c\bar{c}$ pair) are computed within the rotating string formalism. In our model, two gluons are attached by an adjoint string in a glueball while the gluon and the colour octet $c\bar{c}$ pair are attached by two fundamental strings in a hybrid gluelump. Masses for such exotic hadrons are computed with very few free parameters. These predictions can serve as a guide for experimental searches. In particular, the ground state glueballs lie on a Regge trajectory and the lightest $2^{++}$ state has a mass compatible with some experimental candidates.

arXiv comment3 figures

References in corpus (27)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The glueball spectrum from an anisotropic lattice study
• Effective field theories for heavy quarkonium
• Casimir scaling of SU(3) static potentials
• Small x: Two Pomerons!
• Glueball Spectroscopy in a Relativistic Many-Body Approach to Hadron Structure
• Static SU(3) potentials for sources in various representations
• Hadrons with a heavy colour-adjoint particle
• Gluelump spectrum in the QCD string model
• Rotating QCD string and the meson spectrum
• Nonperturbative corrections to the quark self-energy
• Light-meson orbital excitations in the QCD string approach
• Many-Body Coulomb Gauge Exotic and Charmed Hybrids
• Semirelativistic potential model for glueball states
• Light Meson Spectra and Instanton Induced Forces
• About the Casimir scaling hypothesis
• Dynamics of the QCD String with Light and Heavy Quarks
• Auxiliary fields and hadron dynamics
• The glueball spectrum
• Glueball spectrum and the Pomeron in the Wilson loop approach
• The quark-gluon Mixed Condensate calculated via Field Correlators
• The baryonic Y-shape confining potential energy and its approximants
• Lagrange mesh, relativistic flux tube, and rotating string
• Reduction of the QCD string to a time component vector potential
• Auxiliary fields and the flux tube model
• Quark self-energy and relativistic flux tube model
• Search for Glueballs from Three-body Annihilation of Antiproton-Proton in-Flight

Cited by in corpus (20)

• The Physics of Glueballs
• Gluon screening mass at finite temperature from Landau gauge gluon propagator in lattice QCD
• On two- and three-body descriptions of hybrid mesons
• Glueballs and Strings in $Sp(2N)$ Yang-Mills theories
• Holographic glueballs from the circle reduction of Romans supergravity
• Glueballs and Mesons: the Ground States
• Meson and glueball spectra with the relativistic flux tube model
• Casimir scaling and Yang-Mills glueballs
• Hybrid mesons and auxiliary fields
• Semirelativistic potential model for three-gluon glueballs
• Constituent gluon interpretation of glueballs and gluelumps
• Glueball phenomenology and the relativistic flux tube model
• Semirelativistic potential model for low-lying three-gluon glueballs
• Glueballs as rotating folded closed strings
• Excited flux tube from $q\bar{q}g$ hybrid mesons
• Causality Constraints in Large $N$ QCD Coupled to Gravity
• Short-range potentials from QCD at order $g^2$
• Relativistic corrections for two- and three-body flux tube model
• Hybrid meson masses and the correlated Gaussian basis
• Covariant oscillator quark model for glueballs and baryons