RADIATIVE-CAPTURE OF POLARIZED NEUTRONS BY POLARIZED PROTONS AT T-N=183 MEV

The order to provide a quantitative test of theoretical calculations i ncorporating meson-exchange currents and intermediate Delta resonances , we measure the normal-component spin correlation coefficient C-NN, t he differential cross section d sigma/d Omega, and the neutron and pro ton analyzing powers A(n) and A(p), each as a function of angle, for ( n) over right arrow (p) over right arrow-->d gamma at T-n=183 MeV. Our (n) over right arrow (p) over right arrow-->d gamma results, combined with the previous cross section and photon asymmetry data collected i n the past decade, place quite strong constraints on model calculation s. Our data are in excellent agreement with theoretical predictions by Jaus and Woolcock that incorporate meson-exchange and isobar current effects and relativistic corrections, signifying great recent progress in our understanding of these effects in the nucleon-nucleon system.