Title of article
Time reversal in polarized neutron decay: the emiT experiment
Author/Authors
Jones، نويسنده , , G.L and Adams، نويسنده , , J.M and Anaya، نويسنده , , J.M and Bowles، نويسنده , , T.J and Chupp، نويسنده , , T.E. and Coulter، نويسنده , , K.P and Dewey، نويسنده , , M.S and Freedman، نويسنده , , S.J. and Fujikawa، نويسنده , , B.K and Garcia، نويسنده , , A and Greene، نويسنده , , G.L and Hwang، نويسنده , , L.J. Lising، نويسنده , , L.J and Mumm، نويسنده , , H.P. and Nico، نويسنده , , J.S and Robertson، نويسنده , , R.G.H and ، نويسنده ,
Pages
5
From page
648
To page
652
Abstract
The standard electro-weak model predicts negligible violation of time-reversal invariance in light quark processes. We report on an experimental test of time-reversal invariance in the beta decay of polarized neutrons as a search for physics beyond the standard model. The emiT collaboration has measured the time-reversal-violating triple-correlation in neutron beta decay between the neutron spin, electron momentum, and neutrino momentum often referred to as the D coefficient. The first run of the experiment produced 14 million events which are currently being analyzed. However, a second run with improved detectors should provide greater statistical precision and reduced systematic uncertainties.
Keywords
Weak interaction , neutron beta decay , Angular correlation
Journal title
Astroparticle Physics
Record number
2011057
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