Work

Flavor mixing in charmonium and light mesons with optimal distillation profiles

Year: 2025

Type: conference-paper

Abstract: 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 ( $420$, $800$ MeV) in two $N_{\rm f} = 3 + 1$ ensembles at close to 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.

Source: International Symposium on Lattice Field Theory (LATTICE)

DOI: 10.22323/1.466.0080

Authors: Juan Andres Urrea Nino, Francesco Knechtli, Jacob Finkenrath, Tomasz Korzec, Michael J. Peardon, Roman Höllwieser

Institutions: University of Wuppertal, European Organization for Nuclear Research, Trinity College Dublin

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid