Speaker
Prof.
Francesco Knechtli
(University of Wuppertal)
Description
Recently the LHCb experiment found evidence for the existence of two
exotic resonances consisting of $c\bar{c}uud$ quarks. Among the possible
interpretations there is the hadro-charmonium model, in which charmonium
is bound "within" a 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. It becomes
more attractive and the effect is of the order of few MeV.
Primary author
Prof.
Francesco Knechtli
(University of Wuppertal)
Co-authors
Dr
Graham Moir
(University of Cambridge)
Prof.
Gunnar Bali
(University of Regensburg)
Mr
Maurizio Alberti
(University of Wuppertal)
Dr
Sara Collins
(University of Regensburg)
Wolfgang Soeldner
(Regensburg University)
