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Title: Free neutron decay and time reversal violation
Authors: Kozela, A.
Ban, G.
Białek, A.
Bodek, K.
Gorel, P.
Kirch, K.
Kistryn, S.
Kuźniak, M.
Naviliat-Cuncic, O.
Severijns, N.
Stephan, Elżbieta
Zejma, J.
Keywords: modele elektrosłabe; testy jądrowe; leptony; zjawiska polaryzacji; reakcje
Issue Date: 2011
Citation: Acta Physica Polonica B, Vol. 42, no. 3/4 (2011), s. 789-793
Abstract: Both components of the transverse electron polarization have been measured in free neutron decay. The T-odd, P-odd correlation coefficient associated with polarization component perpendicular to the neutron polarization and electron momentum, was found to be R = 0:006 0:012 0:005. This value is consistent with time reversal invariance, and significantly improves limits on the relative strength of imaginary scalar couplings in the weak interaction. The value obtained for the T-even, P-even correlation coefficient connected with the second transversal polarization component, N = 0:065 0:012 0:004, agrees with the Standard Model expectation providing an important sensitivity test of the experimental setup.
DOI: 10.5506/APhysPolB.42.789
ISSN: 0587-4254
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