New Limit on the D Coefficient in Polarized Neutron Decay

Details New Limit on the D Coefficient in Polarized Neutron Decay New Limit on the D Coefficient in Polarized Neutron Decay

2000-06-01

arxiv.org/abs/nucl-ex/0006001v2

Phys.Rev.C62:055501,2000

Physics

Nuclear Physics

Nuclear Experiment

The emiT collaboration. 11 pages, 14 figures. Submitted to Physical Review C

Scientific paper

10.1103/PhysRevC.62.055501

We describe an experiment that has set new limits on the time reversal invariance violating D coefficient in neutron beta-decay. The emiT experiment measured the angular correlation J . p_e x p_p using an octagonal symmetry that optimizes electron-proton coincidence rates. The result is D=[-0.6+/-1.2(stat)+/-0.5(syst)]x10^(-3). This improves constraints on the phase of g_A/g_V and limits contributions to T violation due to leptoquarks. This paper presents details of the experiment, data analysis, and the investigation of systematic effects.

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