Polarized Neutron β-Decay: the Proton Asymmetry and Recoil-Order Currents
Abstract
We present an analytic, recoil-order calculation of the proton asymmetry from polarized neutron β-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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