Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 43: Hauptvorträge
HK 43.2: Hauptvortrag
Freitag, 14. März 2008, 11:30–12:00, 1B/C
Hyperon Physics at COSY–Jülich — •Michael Hartmann — Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany
The understanding of the nucleon excitation spectrum is one of the prerequisites for understanding “strong” QCD, since the full spectrum contains fundamental information about the underlying force acting between the quarks and gluons. Hyperon production potentially elucidates the coupling of individual nucleon resonances to strangeness, and the study of resonance parameters and quantum numbers can provide essential information on questions like missing resonances predicted by quark models.
Thus, a hyperon production program in pp and pn–reactions at COSY–Jülich has been started, using the detector systems ANKE, TOF and WASA. Recent experimental results in the reaction pp → pK+Hyperon will be presented and discussed. The talk will mainly focus on high statics data of the ground–state Λ(1116) production at TOF and the studies of excited hyperons — the Λ(1405) and the Y0*(1480) — at ANKE. An outlook to the WASA–program will be also given.