Measurement of the Neutrino Asymmetry Parameter B in Neutron Decay

A. Petoukhov; B. Maerkisch; D. Mund; F. Glueck; H. Abele; J. Krempel; M. Deissenroth; M. Kreuz; M. Schumann; T. Soldner

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Measurement of the Neutrino Asymmetry Parameter B in Neutron Decay

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arxiv 0706.3788 v2 pith:4XKB32RR submitted 2007-06-26 hep-ph

Measurement of the Neutrino Asymmetry Parameter B in Neutron Decay

M. Schumann , T. Soldner , M. Deissenroth , F. Glueck , J. Krempel , M. Kreuz , B. Maerkisch , D. Mund

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A. Petoukhov H. Abele

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A new measurement of the neutrino asymmetry parameter B in neutron decay, the angular correlation between neutron spin and anti-neutrino momentum, is presented. The result, B=0.9802(50), agrees with the Standard Model expectation and earlier measurements, and permits improved tests on ``new physics'' in neutron decay.

Measurement of the Neutrino Asymmetry Parameter B in Neutron Decay

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