Study of the eta-proton interaction via the reaction p p --> p p eta

Details Study of the eta-proton interaction via the reaction p p --> p p eta Study of the eta-proton interaction via the reaction p p --> p p eta

2001-10-31

arxiv.org/abs/nucl-ex/0110018v1

PiN Newslett.16:367-369,2002

Physics

Nuclear Physics

Nuclear Experiment

3pp, Talk given at 9th International Symposium on Meson - Nucleon Physics and the Structure of the Nucleon (MENU 2001), Washin

Scientific paper

A measurement of the pp --> p p eta reaction at the excess energy of Q = 15.5 +- 0.4 MeV has been carried out at the internal beam facility COSY-11 with an integrated luminosity of 811 nb^-1 The number of ~24000 identified events permits a precise determination of total (2.32 +- 0.05 +- 0.35 \mu b) and differential cross sections. Preliminary investigations show that the angular distribution of the eta meson in the center-of-mass system is isotropic. A qualitative analysis of the Dalitz-plot distribution is presented.

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