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Your search keyword '"Dewey, M. S."' showing total 8 results
Start Over Author "Dewey, M. S." Journal physical review letters
8 results on '"Dewey, M. S."'

1. Measurement of the Electron-Antineutrino Angular Correlation in Neutron β Decay

Author

Darius, G., primary, Byron, W. A., additional, DeAngelis, C. R., additional, Hassan, M. T., additional, Wietfeldt, F. E., additional, Collett, B., additional, Jones, G. L., additional, Dewey, M. S., additional, Mendenhall, M. P., additional, Nico, J. S., additional, Park, H., additional, Komives, A., additional, and Stephenson, E. J., additional

Published
2017
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3. Measurement of the Neutron Lifetime Using a Proton Trap

Author

Dewey, M. S., primary, Gilliam, D. M., additional, Nico, J. S., additional, Wietfeldt, F. E., additional, Fei, X., additional, Snow, W. M., additional, Greene, G. L., additional, Pauwels, J., additional, Eykens, R., additional, Lamberty, A., additional, and Van Gestel, J., additional

Published
2003
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5. Measurement of the neutron lifetime by counting trapped protons

Author

Byrne, J., primary, Dawber, P. G., additional, Spain, J. A., additional, Williams, A. P., additional, Dewey, M. S., additional, Gilliam, D. M., additional, Greene, G. L., additional, Lamaze, G. P., additional, Scott, R. D., additional, Pauwels, J., additional, Eykens, R., additional, and Lamberty, A., additional

Published
1990
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8. Precision Measurement of the Radiative β Decay of the Free Neutron.

Author

Bales, M. J., Alarcon, R., Bass, C. D., Beise, E. J., Breuer, H., Byrne, J., Chupp, T. E., Coakley, K. J., Cooper, R. L., Dewey, M. S., Gardner, S., Gentile, T. R., He, D., Mumm, H. P., Nico, J. S., O'Neill, B., Thompson, A. K., and Wietfeldt, F. E.

Subjects
*BETA decay, *NEUTRONS, *RADIOACTIVE decay
Abstract

The standard model predicts that, in addition to a proton, an electron, and an antineutrino, a continuous spectrum of photons is emitted in the β decay of the free neutron. We report on the RDK II experiment which measured the photon spectrum using two different detector arrays. An annular array of bismuth germanium oxide scintillators detected photons from 14 to 782 keV. The spectral shape was consistent with theory, and we determined a branching ratio of 0.00335±0.00005[stat]±0.00015[syst]. A second detector array of large area avalanche photodiodes directly detected photons from 0.4 to 14 keV. For this array, the spectral shape was consistent with theory, and the branching ratio was determined to be 0.00582±0.00023[stat]±0.00062[syst]. We report the first precision test of the shape of the photon energy spectrum from neutron radiative decay and a substantially improved determination of the branching ratio over a broad range of photon energies. [ABSTRACT FROM AUTHOR]

Published
2016
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