Gluelump model with transverse constituent gluons

Details Gluelump model with transverse constituent gluons Gluelump model with transverse constituent gluons

2008-08-18

arxiv.org/abs/0808.2399v2

Eur.Phys.J.A38:233-238,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages

Scientific paper

10.1140/epja/i2008-10663-9

We show that C-odd gluelumps can be successfully described as bound states of a single transverse constituent gluon evolving in the flux-tube-like potential generated by a static color-octet source. The use of a helicity degree of freedom rather than a spin one for the constituent gluon forbids the states that are not observed in lattice QCD. Our model leads to a gluelump mass spectrum in remarkable agreement with the available lattice data provided that an additional parity-splitting mass term is introduced. We argue that such a term is due to instanton-induced interactions in gluelumps.

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