Speaker
Juan Andres Urrea Nino
(Bergische Universität Wuppertal)
Description
We study the light meson - charmonium - glueball mixing using flavor-singlet meson operators built from optimal distillation profiles together with purely gluonic operators in different $J^{PC}$ channels at two different pion masses ($m_{\pi} \approx 420,\ 800$ MeV) in two $N_f = 3 + 1$ ensembles at almost physical charm quark mass. We observe non-zero mixing correlations between the different types of operators and quantify the overlaps between states created by them and the energy eigenstates by means of a GEVP formulation. We are particularly interested in the scalar glueball and its possible decay into two pions so we also include two-pion operators in our calculation.
Primary authors
Francesco Knechtli
(University of Wuppertal)
Juan Andres Urrea Nino
(Bergische Universität Wuppertal)
Tomasz Korzec
(Bergische Universität Wuppertal)
Dr
Jacob Finkenrath
(Bergische Universität Wuppertal)
Dr
Roman Höllwieser
(Bergische Universität Wuppertal)
Prof.
Michael Peardon
(Trinity College Dublin)
