Gluelump model with transverse constituent gluons |
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Authors: | F Buisseret |
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Institution: | (1) Groupe de Physique Nucléaire Théorique, Université de Mons-Hainaut, Académie universitaire Wallonie-Bruxelles, Place du Parc 20, B-7000 Mons, Belgium |
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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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Keywords: | PACS" target="_blank">PACS 12 39 Mk Glueball and nonstandard multi-quark/gluon states 12 39 Ki Relativistic quark model 12 39 Pn Potential models |
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