Spectroscopy From The Lattice: The Scalar Glueball
Ruair\'i Brett, John Bulava, Daniel Darvish, Jacob Fallica, Andrew, Hanlon, Ben H\"orz, Colin Morningstar
TL;DR
This paper uses lattice QCD calculations to explore the low-lying scalar spectrum, including glueball, quark-antiquark, and meson-meson mixing, providing insights into non-perturbative QCD phenomena.
Contribution
First comprehensive lattice QCD study of scalar glueball mixing with q-qbar and meson-meson operators in fully dynamical QCD.
Findings
Identified the low-lying scalar states with vacuum quantum numbers.
Demonstrated mixing between glueball, q-qbar, and meson-meson operators.
Provided numerical results for the scalar spectrum in dynamical QCD.
Abstract
Lattice calculations allow us to probe the low-lying, non-perturbative spectrum of QCD using first principles numerical methods. Here we present the low-lying spectrum in the scalar sector with vacuum quantum numbers including, in fully dynamical QCD for the first time, the mixing between glueball, q-qbar, and meson-meson operators.
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