The beta-decay asymmetry of the neutron

Zeitschrift für Physik C Particles and Fields - Tập 37 Số 2 - Trang 179-189 - 1988
Klemt, E.1, Bopp, P.1, Hornig, L.1, Last, J.1, Freedman, S. J.2, Dubbers, D.3, Schärpf, O.3
1Physikalisches Institut der Universität, Heidelberg, Germany
2Argonne National Laboratory, Argonne, USA
3Institut Laue Langevin, Grenoble, France

Tóm tắt

The beta-decay asymmetry of the free neutron is measured with polarized neutrons and a long solenoidal beta-spectrometer with 4π electron-detection solid angle. The asymmetry parameter corrected for recoil and weak magnetism isA 0=−0.1146±0.0019, implyingg A /g v =1.262±0.005 for the ratio of the axial-vector to the vector weak coupling constants.

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Zeitschrift für Physik C Particles and Fields

Tập 37 Số 2

179-189

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