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Testing the hadro-quarkonium model on the lattice

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arxiv 1611.00912 v1 pith:MODA62PE submitted 2016-11-03 hep-lat hep-ph

Francesco Knechtli , Maurizio Alberti , Gunnar S. Bali , Sara Collins , Graham Moir , Wolfgang Söldner This is my paper
classification hep-lathep-ph
keywords hadronmodelquarksstaticattractivebecomesboundcharmonium
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abstract

Recently the LHCb experiment found evidence for the existence of two exotic resonances consisting of $c\bar{c}uud$ quarks. Among the possible interpretations is the hadro-charmonium model, in which charmonium is bound "within" a light hadron. We test this idea on CLS $N_f$=2+1 lattices using the static formulation for the heavy quarks. We find that the static potential is modified by the presence of a hadron such that it becomes more attractive. The effect is of the order of a few MeV.

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