Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Hadron Spectroscopy and Interactions
Testing the hadro-quarkonium model on the lattice
F. Knechtli,* M. Alberti, G. Bali, S. Collins, G. Moir, W. Söldner
*corresponding author
Full text: pdf
Pre-published on: 2016 December 27
Published on: 2017 March 24
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.
Open Access