Lowest-lying scalar mesons and a possible probe of their quark substructure
Journal Article
·
· AIP Conference Proceedings
- Department of Physics, Syracuse University, Syracuse, New York 13244-1130 (United States)
In this talk, an overview of the status of the light scalar mesons in the context of the non linear chiral Lagrangian of references [1-3] is presented. The evidence for the existence of a scalar nonet below 1 GeV is reviewed, and it is shown that by introducing a scalar nonet an indirect way of probing the quark substructure of these scalars through the scalar mixing angle can be obtained. It is then reviewed that consistency of this non-linear chiral Lagrangian framework with the experimental data on {pi}{pi} and {pi}K scattering, as well as the decay {eta}{sup '}{yields}{eta}{pi}{pi}, results in a range for the mixing angle which indicates that the quark substructure of these light scalars are closer to a four quark picture. (c) 1999 American Institute of Physics.
- OSTI ID:
- 20217403
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 488; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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