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arXiv · 1611.00912

Testing the hadro-quarkonium model on the lattice

Francesco Knechtli·Maurizio Alberti·Gunnar S. Bali·Sara Collins·Graham Moir·Wolfgang Söldner
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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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Francesco Knechtli, Maurizio Alberti, Gunnar S. Bali, Sara Collins, Graham Moir, Wolfgang Söldner. 2016-11-03. Testing the hadro-quarkonium model on the lattice. https://arxiv.org/abs/1611.00912

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