Polarized Neutron $β$-Decay: the Proton Asymmetry and Recoil-Order Currents

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  • 16 July 2005
Abstract
We present an analytic, recoil-order calculation of the proton asymmetry from polarized neutron $\beta$-decay. The differential decay rate in terms of electron energy and proton direction follows, parametrized in terms of the most general Lorentz-invariant hadron current coupled to a left-handed lepton current. Implications for experimental efforts to measure recoil-order currents are discussed.

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