Light and Not So Light Scalar Mesons

Details Light and Not So Light Scalar Mesons Light and Not So Light Scalar Mesons

2009-05-20

arxiv.org/abs/0905.3308v1

Acta Phys.Polon.Supp.2:437,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Acta Physica Polonica style, 6 pages, 2 figures (4 graphs); plenary talk given by G. Rupp at Workshop "Excited QCD", Zakopane,

Scientific paper

A multichannel description of the light scalar mesons in the framework of the Resonance-Spectrum Expansion is generalised by including vector-vector and scalar-scalar channels, besides the usual pseudoscalar-pseudoscalar channels. Experimental data for the isoscalar, isodoublet and isovector cases are fitted up to energies well above 1 GeV. The resulting pole positions of the light and intermediate scalar mesons are compared to the listed resonances. Possible further improvements are discussed.

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