p + rvec d r arrow sup 3 He+. gamma. reaction with realistic three-nucleon wave functions

We study the proton-deuteron radiative capture reaction at low energies (${\mathit{E}}_{\ensuremath{\gamma}}$\ensuremath{\simeq}10 MeV) with the three-nucleon Faddeev wave functions for various combinations of available realistic nucleon-nucleon potentials and the two-pion exchange three-nucleon potential. The calculated values of tensor analyzing power ${\mathit{A}}_{\mathit{y}\mathit{y}}$(\ensuremath{\theta}) are found to be sensitive to a different choice of realistic potentials and introduction of the three-nucleon potential. The comparison with available data shows the necessity of the three-nucleon potential.