The scalar kappa from D+ -> K- pi+ pi+: Further Studies

Abstract

We briefly review the recent results obtained by Fermilab experiment E791 on the Dalitz plot analysis of the decay D+ -> K- pi+ pi+, where indication for a light Kpi scalar resonance, the kappa, was found. We also present preliminary studies providing further information on the phase behavior of the scalar components at low mass, supporting the previous indication for the kappa.

Comments: Invited talk given at the "Workshop on Scalar Mesons: An Interesting Puzzle for QCD", SUNY Institute of Technology, Utica NY, May 2003. 10 pages. Minor corrections made