Cross section ratio and angular distributions of the reaction p + d ->   3He + eta at 48.8 MeV and 59.8 MeV excess energy
  We present new data for angular distributions and on the cross section ratio of the p + d -> 3He + eta reaction at excess energies of Q = 48.8 MeV and Q = 59.8 MeV. The data have been obtained at the WASA-at-COSY experiment (Forschungszentrum J\"ulich) using a proton beam and a deuterium pellet target. While the shape of obtained angular distributions show only a slow variation with the energy, the new results indicate a distinct and unexpected total cross section fluctuation between Q = 20 MeV and Q = 60 MeV, which might indicate the variation of the production mechanism within this energy interval. 
P. Adlarson, W. Augustyniak, W. Bardan, M. Bashkanov, F.S. Bergmann,   M. Ber{\l}owski, H. Bhatt, M. B\"uscher, H. Cal\'en, ...
nucl-ex