Invariant mass distributions for the pp to p p eta reaction at Q=10 MeV

Details Invariant mass distributions for the pp to p p eta reaction at Q=10 MeV Invariant mass distributions for the pp to p p eta reaction at Q=10 MeV

2009-12-08

arxiv.org/abs/0912.1592v1

Eur.Phys.J.A43:131-136,2010

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 3 figures, submitted to Eur.Phys. J. A

Scientific paper

10.1140/epja/i2009-10900-9

Proton-proton and proton-eta invariant mass distributions and the total cross section for the pp to pp eta reaction have been determined near the threshold at an excess energy of Q=10 MeV. The experiment has been conducted using the COSY-11 detector setup and the cooler synchrotron COSY. The determined invariant mass spectra reveal significant enhancements in the region of low proton-proton relative momenta, similarly as observed previously at higher excess energies of Q=15.5 MeV and Q= 40MeV.

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