Constituent gluon interpretation of glueballs and gluelumps

Abstract

Arguments are given that support the interpretation of the lattice QCD glueball and gluelump spectra in terms of bound states of massless constituent gluons with helicity-1. In this scheme, the mass hierarchy of the currently known gluelumps and glueballs is mainly due to the number of constituent gluons and can be understood within a simple flux tube model. It is also argued that the lattice QCD $0^{+-}$ glueball should be seen as a four-gluon bound state. The flux tube model allows for a parameter-free computation of its mass, which is in good agreement with lattice QCD.

3 figures, use of package youngtab

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Cited by in corpus (8)

• An updated review of the new hadron states
• Exotic glueball $0^{\pm -}$ states in QCD Sum Rules
• Glueball phenomenology and the relativistic flux tube model
• Mass spectrum of pseudo-scalar glueballs from a Bethe-Salpeter approach with the rainbow-ladder truncation
• Glueballs and the Yang-Mills plasma in a $T$-matrix approach
• Semirelativistic Hamiltonians and the auxiliary field method
• Wave functions of $SU(3)$ pure gauge glueballs on the lattice
• Casimir scaling in glueballs in SU($N$) and Sp($2N$) gauge theories: hints from constituent approaches