Constituent gluon interpretation of glueballs and gluelumps

Details Constituent gluon interpretation of glueballs and gluelumps Constituent gluon interpretation of glueballs and gluelumps

2008-06-19

arxiv.org/abs/0806.3174v2

Eur.Phys.J.A38:317-330,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 figures, use of package youngtab

Scientific paper

10.1140/epja/i2008-10675-5

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.

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