München 2006 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 9: Elektromagnetische und Hadronische Sonden

HK 9.5: Talk

Monday, March 20, 2006, 17:45–18:00, G

Measurement of pp→pK⁰π⁺Λ at ANKE. — •Mikhail Nekipelov — Institut für Kernphysik, Forschungszentrum Jülich, Germany

A study of the reaction pp→pK⁰π⁺Λ at the incident beam momentum of p_p=3.65 GeV/c has been performed at the ANKE magnetic spectrometer at COSY-Jülich. This channel has received some interest in connection with the presumed pentaquark Θ⁺ (1530). At ANKE the analysis of this reaction is based on the coincident detection of four charged particles: two protons, and positively and negatively charged pions. Both K⁰ and Λ have been identified and the π⁺Λ missing mass distribution was built. In the talk details of the data analysis will be discussed and the final results will be presented.