The nature of the light scalar mesons
Journal Article
·
· AIP Conference Proceedings
- Grupo de Fisica Nuclear, Universidad de Salamanca, E-37008 Salamanca (Spain)
Despite the apparent simplicity of meson spectroscopy, light scalar mesons cannot be accommodated in the usual qq-barstructure. We study the description of the scalar mesons below 2 GeV in terms of the mixing of a chiral nonet of tetraquarks with conventional qq-barstates. A strong diquark-antidiquark component is found for several states. The consideration of a glueball as dictated by quenched lattice QCD drives a coherent picture of the isoscalar mesons.
- OSTI ID:
- 20726647
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 796; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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