The scalar kappa from D+ -> K- pi+ pi+: Further Studies
Carla Gobel (for the Fermilab E791 Collaboration)
TL;DR
This paper reviews Fermilab E791's Dalitz plot analysis of D+ -> K- pi+ pi+ decay, highlighting evidence for a light scalar resonance, the kappa, and presenting preliminary phase behavior studies supporting its existence.
Contribution
It provides further evidence and analysis of the light scalar kappa resonance in D+ decay, expanding understanding of scalar mesons in charm decays.
Findings
Indication of a light Kpi scalar resonance, the kappa.
Preliminary phase behavior studies support the kappa's existence.
Further analysis strengthens the case for the scalar resonance.
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.
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