%0 Journal Article
%T Probing the DeltaNN component of 3He
%A G. M. Huber
%A G. J. Lolos
%A E. J. Brash
%A S. Dumalski
%A F. Farzanpay
%A M. Iurescu
%A Z. Papandreou
%A A. Shinozaki
%A A. Weinerman
%A T. Emura
%A H. Hirosawa
%A K. Niwa
%A H. Yamashita
%A K. Maeda
%A T. Terasawa
%A H. Yamazaki
%A S. Endo
%A K. Miyamoto
%A Y. Sumi
%A G. Garino
%A K. Maruyama
%A A. Leone
%A R. Perrino
%A T. Maki
%A A. Sasaki
%A Y. Wada
%J Physics
%D 1999
%I arXiv
%R 10.1103/PhysRevC.62.044001
%X The 3He(gamma,pi^+/- p) reactions were measured simultaneously over a tagged photon energy range of 800<E_gamma<1120 MeV, well above the Delta resonance region. An analysis was performed to kinematically isolate Delta knockout events from conventional Delta photoproduction events, and a statistically significant excess of pi+p events was identified, consistent with Delta++ knockout. Two methods were used to estimate the DeltaNN probability in the 3He ground state, corresponding to the observed knockout cross section. The first gave a lower probability limit of 1.5+/-0.6+/-0.5%; the second yielded an upper limit of about 2.6%.
%U http://arxiv.org/abs/nucl-ex/9912001v2