Excited spectroscopy of mesons containing charm quarks from lattice QCD

TL;DR

This study uses advanced lattice QCD techniques to compute highly excited states of mesons containing charm quarks, revealing states with high spin, exotic quantum numbers, and potential gluonic excitations, contributing to understanding strong interactions.

Contribution

The paper introduces novel lattice QCD methods that enable precise extraction of highly excited charmed meson spectra, including states with exotic quantum numbers and gluonic components.

Findings

Identification of high-spin charmonium and charm-light mesons

Observation of states with exotic quantum numbers

Preliminary Dπ scattering results in isospin-3/2 channel

Abstract

We present highly excited spectra of charmonium, charm-light and charm-strange mesons using the dynamical anisotropic lattices of the Hadron Spectrum Collaboration. The use of novel techniques has allowed us to extract these spectra with a high degree of statistical precision, while also enabling us to observe states as high as spin-4, states with exotic quantum numbers and candidate gluonic excitations. We discuss the phenomenology of these spectra, and also present preliminary results of D{\pi} scattering considering only the lowest partial wave in the isospin-3/2 channel.