Photoproduction and Radiative Decay of Spin 1/2 and 3/2 Pentaquarks
  We study photoproduction and radiative decays of pentauqarks paying particular attention to the differences between spin-1/2 and spin-3/2, positive and negative parities of pentaquarks. Detailed study of these processes can not only give crucial information about the spin, but also the parity of pentaquarks. 
Xiao-Gang He, Tong Li, Xue-Qian Li, C. C. Lih