Publications [#246144] of Haiyan Gao

Papers Published

1. with al, DGME, Coherent pi0 photoproduction on the deuteron upto 4 GeV, Phys. Rev. C, vol. 60 no. 5 (1999), pp. 052201
   (last updated on 2026/01/14)

   Abstract:
   The differential cross section for 2H(γ,d)π0 has been measured at deuteron center-of-mass angles of 90° and 136°. This work reports the first data for this reaction above a photon energy of 1 GeV, and permits a test of the apparent constituent counting rule and reduced nuclear amplitude behavior as observed in elastic ed scattering. Measurements were performed up to a photon energy of 4.0 GeV, and are in good agreement with previous lower energy measurements. Overall, the data are inconsistent with both constituent-counting rule and reduced nuclear amplitude predictions.