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Time reversal in polarized neutron decay: the emiT experiment
Título de la revista
Autores
Jones, G.L.
Adams, J.M
Anaya, Juan-Manuel
Bowles, T.J.
Chupp., T.E
Coulter, K.P.
Fecha
2000-02-11
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Editor
Elsevier
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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.
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Keywords
Neutron beta decay , Angular correlation , Weak interaction
