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Session J10 - Tests of Fundamental Symmetries at Low Energies II: Time Reversal.
MIXED session, Saturday morning, May 04
Room 104,

[J10.03] The emiT Experiment - A search for Time Reversal Invariance Violation

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

A sensitive indicator of time reversal invariance violation in neutron beta decay would be the presence of a triple correlation among the neutron spin, the electron momentum, and the neutrino momentum. The coefficient, D, of this term can be measured by detecting the decay electrons and recoil protons from a beam of cold polarized neutrons. Several extensions to the Standard Model allow a value of D near the present limit of 10^-3. The emiT experiment will use an octagonal array of detectors to measure D at the Cold Neutron Research Facility at NIST. The detector system is near completion and preliminary runs will be made this summer at NIST. We hope to achieve a sensitivity to D of 3 \times 10^-4.

Part J of program listing