Charmonium Spectrum on dynamical anisotropic lattices

TL;DR

This paper investigates the charmonium spectrum using dynamical anisotropic lattices, employing all-to-all propagators and extended operators to access a wide range of states including excited, D-wave, and hybrid states.

Contribution

It introduces a novel approach using all-to-all propagators and extended operators on dynamical anisotropic lattices to study various charmonium states.

Findings

Successful extraction of radially excited states

Identification of D-wave and hybrid states

Enhanced overlap with complex states

Abstract

We present a first study of the charmonium spectrum on N_f=2 dynamical, anisotropic lattices. We take advantage of all-to-all quark propagators to build spatially extended interpolating operators to increase the overlap with states not easily accessible with point propagators such as radially excited states of eta_c, psi, and chi_c, D-waves and hybrid states.