Luminosity determination for the pd reaction at 2.14 GeV with   WASA-at-COSY
  The luminosity for a WASA-at-COSY experiment involving the pd reaction at 2.14 GeV proton-beam energy is determined by the forward pd elastic scattering, which yields an average beam-on-target value of [5.2\pm0.3(stat)\pm0.3(syst)]*10^{30} s^{-1}cm^{-2}. In addition, the forward pd elastic-scattering angular distribution is obtained with four-momentum transfer squared -t between 0.16 (GeV/c)^{2} and 0.78 (GeV/c)^{2} at this beam energy, which is compared with other experimental data and the pd double scattering model. 
C. Zheng, M. Buescher, P. Fedorets, V. Hejny, H. Stroeher, H. Xu and   X. Yuan
nucl-ex physics.acc-ph