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Gluelump model with transverse constituent gluons

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Abstract

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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  1. Groupe de Physique Nucléaire Théorique, Université de Mons-Hainaut, Académie universitaire Wallonie-Bruxelles, Place du Parc 20, B-7000, Mons, Belgium

    F. Buisseret

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  1. F. Buisseret
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Correspondence to F. Buisseret.

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Buisseret, F. Gluelump model with transverse constituent gluons. Eur. Phys. J. A 38, 233–238 (2008). https://doi.org/10.1140/epja/i2008-10663-9

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  • DOI: https://doi.org/10.1140/epja/i2008-10663-9

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