Flavor mixing in charmonium and light mesons with optimal distillation profiles

2025/02/07 by Urrea-Niño, Juan Andrés, Finkenrath, Jacob, Höllwieser, Roman +3 · 2 citations
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2502.04977

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.

Cited by

• Mixing of heavy and light quarks in charmonium and light mesons
• S-wave flavor-singlet meson mixing in QCD with light and charm quarks

Related

• Mixing of heavy and light quarks in charmonium and light mesons
• Optimized meson operators for charmonium spectroscopy and mixing with glueballs
• S-wave flavor-singlet meson mixing in QCD with light and charm quarks
• Charmonium spectroscopy with optimal distillation profiles
• Optimizing Distillation for charmonium and glueballs