Precision measurement of the neutron beta-decay asymmetry

Thumbnail
View/Open
Main article (291.6Kb)
Downloads: 175
Date
2013-03-25
Author
Mendenhall, M. P.
Pattie, R. W.
Bagdasarova, Y.
Berguno, D. B.
Broussard, L. J.
Carr, R.
Currie, S.
Ding, X.
Filippone, B. W.
Garcia, A.
Geltenbort, P.
Hickerson, K. P.
Hoagland, J.
Holley, A. T.
Hong, R.
Ito, T. M.
Knecht, A.
Liu, C. Y.
Liu, J. L.
Makela, M.
Mammei, R. R.
Martin, J. W.
Melconian, D.
Moore, S. D.
Morris, C. L.
Galvan, A. P.
Picker, R.
Pitt, M. L.
Plaster, B.
Ramsey, J. C.
Rios, R.
Saunders, A.
Seestrom, S. J.
Sharapov, E. I.
Sondheim, W. E.
Tatar, E.
Vogelaar, R. B.
VornDick, B.
Wrede, C.
Young, A. R.
Zeck, B. A.
Ucna Collaboration
Metadata
Show full item record
Abstract
A new measurement of the neutron beta-decay asymmetry A(0) has been carried out by the UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium UCN source at the Los Alamos Neutron Science Center. Improvements in the experiment have led to reductions in both statistical and systematic uncertainties leading to A(0) = -0.11954(55)(stat)(98)(syst), corresponding to the ratio of axial-vector to vector coupling lambda = g(A)/g(V) = -1.2756(30).
URI
http://hdl.handle.net/10919/24726
Collections