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Cross-section and vector-analyzing-power data for three star configurations of the 2 H(p ជ ,pp)n breakup reaction at E p lab ϭ65 MeV were measured in a kinematically complete experiment. They are compared to rigorous Faddeev calculations involving five realistic charge-dependent nucleon-nucleon potentials: Argonne v 18 , CD Bonn, Nijmegen 93, Nijmegen I, and Nijmegen II. A general satisfactory agreement between theory and experiment has been found. However, there exist also a few minor discrepancies in cross sections in some regions of phase space. The experimental data are compared also to the calculations including the ͑-͒ Tucson-Melbourne three-body force. Their effects are either negligible or increase the disagreement with the experiment. ͓S0556-2813͑97͒01601-4͔

In this paper we reported the first results of a novel symmetry test performed to check the standard model's prediction of maximal parity violation in nuclear P decay. The experiment measured the ratio R of the polarization of positrons emitted in opposite directions with respect to the nuclear spin and compared the result with the standard model prediction Ro. We have since come to realize that the small transverse components of the positron polarization accepted by the polarimeter make a non-negligible contribution to Ro. Our corrected result, which is presented in detail elsewhere[1], is (b+g) =0.0003~0.0058. This correction increases our 90% confidence level lower bound on the mass of an eventual right-handed gauge boson from 225 to 250 GeV/c, leaving our main conclusions unchanged.We thank Dr. J. Govaerts for calculations which show that the rotation of the positron spin in the magnetic fields of the apparatus has a negligible eAect on the final result.

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