Precision Measurements in Neutron Decay

Abstract

We present new precision measurements of angular correlation coefficients in polarized neutron decay. We have obtained values for the electron asymmetry coefficient A, the neutrino asymmetry coefficient B, and for the proton asymmetry coefficient C. In combination with other results, the new measurements are used to derive limits on "Physics beyond the Standard Model".

Comments: 6 pages, to appear in the proceedings of the XLIInd Rencontres de Moriond - Electroweak Interactions and Unified Theories, March 10-17 2007, La Thuile, Italy; v2: results and references updated