Study of the eta meson production with the polarised proton beam

Abstract

The azimuthally symmetric WASA detector and the polarised proton beam of COSY, enable investigations of energy and angular dependence of the beam analysing power in the pp --> ppeta reaction. The aim of the studies is the determination of the partial wave contributions via interference terms which are inaccessible from spin averaged observables. The partial wave decomposition is mandatory for the understanding of the reaction dynamics and for the determination of the eta-proton interaction, independently of the theoretical paradigm used.

arXiv commentTo be published in J. Phys. Conf. Ser. in the second quarter of 2011

References in corpus (18)

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• A method to disentangle single- and multi-meson production in missing mass spectra from quasi-free pn --> pn X reactions
• Invariant mass distributions for the pp to p p eta reaction at Q=10 MeV
• First close-to-threshold measurement of the analyzing power Ay in the reaction p(pol)p -> pp eta
• Study of the production mechanism of the eta meson in proton-proton collisions by means of analysing power measurements

Cited by in corpus (4)

• Few-body aspects of the near threshold pseudoscalar meson production
• Determination of the analysing power for the $\vec{p}p\to pp\eta$ reaction using WASA-at-COSY detector system
• Study of the eta meson production with polarized proton beam
• Determination of the polarization in the $\vec{p}p\to pp$ reaction with WASA-at-COSY detector