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Session AD - Beta Decay.
MIXED session, Monday afternoon, October 06
Empress B, Chateau Whistler

[AD.03] Time Reversal in Polarized Neutron Decay---Theory and Analysis for the emiT Experiment

L. J. Lising, S. J. Freedman, B. K. Fujikawa, E. G. Wasserman (Lawrence Berkeley National Laboratory), M.C. Browne, S. R. Elliott, R. G. H. Robertson, T. D. Steiger, J. F. Wilkerson (University of Washington), J.M. Adams, G. L. Jones, M. S. Dewey, J. S. Nico, A. K. Thompson, F. E. Wietfeldt (National Institute of Standards and Technology), T E. Chupp, K. P. Coulter, S.-R. Hwang (University of Michigan), A. Garcia (Notre Dame University), J.M. Anaya, T. J. Bowles, G. L. Greene, W. A. Teasdale (Los Alamos National Laboratory)

In the search for physics beyond the Standard Model, time reversal violation measurements provide strong insights, since the Standard Model predictions for most processes are so small as to be experimentally inaccessible. Hence, the emiT Experiment (see previous abstract) is measuring the D coefficient in free neutron decay. The Standard Model prediction for D (10^-12) is much smaller than the current experimental limit (0.3\pm1.5\times10^-3). However, extensions to the Standard Model including left-right symmetry, leptoquarks, and exotic fermions all allow values of D in the range 10^-5--10^-3. These predictions will be discussed with an eye toward underscoring the theoretical motivation of emiT. Also, the techniques employed to analyze the data will be outlined.

Part A of program listing