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Free neutron decay and time reversal violation

A. Kozela G. Ban 1 A. Białek K. Bodek P. Gorel K. Kirch St. Kistryn M. Kuzniak O. Naviliat-Cuncic 1 N. Severijns E. Stephan J. Zejma
1 LPCC - Laboratoire de physique corpusculaire de Caen
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 (symb) 0:012 (symb) 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 (symb) 0:012 (symb) 0:004, agrees with the Standard Model expectation providing an important sensitivity test of the experimental setup.
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Conference papers
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http://hal.in2p3.fr/in2p3-00588817
Contributor : Sandrine Guesnon <>
Submitted on : Tuesday, April 26, 2011 - 4:10:21 PM
Last modification on : Tuesday, February 19, 2019 - 9:42:02 AM

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A. Kozela, G. Ban, A. Białek, K. Bodek, P. Gorel, et al.. Free neutron decay and time reversal violation. Zakopane Conference on Nuclear Physics - Extremes of the Nuclear Landscape, Sep 2010, Zakopane, Poland. pp.789-793, ⟨10.5506/APhysPolB.42.789⟩. ⟨in2p3-00588817⟩

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