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Light and not so light scalar mesons

Authors: G. Rupp, S. Coito, and E. van Beveren

Ref.: Acta Phys. Polon. Supp. 2, 437-442 (2009)

Abstract: 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.

URL: arxiv.org