Münster 2011 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 59: Hadronenstruktur und -spektroskopie X
HK 59.5: Vortrag
Donnerstag, 24. März 2011, 17:45–18:00, HS3
Hyperon production in the reactions pn(p)→ K0 Λ p(p) and pp→ K+ Λ p — •Martin Krapp, Wolfgang Eyrich, Florian Hauenstein, Lukas Kober, Cecilia Pizzolotto, Wolfgang Schroeder, and Andreas Teufel — Universität Erlangen-Nürnberg
The near threshold production of hyperons by using a liquid hydrogen target is one of the main topics studied at the time-of-flight spectrometer COSY-TOF. Up to now the reactions pp→ K+ Λ p, K0 Σ+ p and K+ Σ0 p have been investigated in detail and led to an essential information gain about the reaction mechanism. In order to achieve more complete information about hyperon production near threshold in nucleon-nucleon reactions, the investigation has been extended to pn reactions by using a liquid deuterium target. The current status of the analysis of the reaction channel pn(p)→ K0 Λ p(p) will be presented. This includes reconstruction techniques, preliminary results from real data as well as Monte Carlo simulation including Fermi motion. Moreover a preliminary estimation of the cross section of the reaction will be presented.
supported by BMBF and FZ Jülich.