Insight into the Scalar Mesons from a Lattice Calculation

Preprint

20 January 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-lat/0001023

Abstract

We study the possibility that the light scalar mesons are (qbar qbar q q) states rather than (qbar q). We perform a lattice QCD calculation of pseudoscalar meson scattering amplitudes, ignoring quark loops and quark annihilation, and find indications that for sufficiently heavy quarks there is a stable four-quark bound state with J^{PC}=0^{++} and non-exotic flavor quantum numbers.

Keywords

SCATTERING AMPLITUDES
LATTICE CALCULATION
SCALAR MESONS
LATTICE QCD
QUARK
QBAR
QCD

All Related Versions

Version 1, 2000-01-20, ArXiv
Published version: Nuclear Physics B, 578 (1-2), 367.

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