Measurement of the beta-nu correlation using magneto-optically trapped 21Na.
Phys Rev Lett
; 93(10): 102501, 2004 Sep 03.
Article
em En
| MEDLINE
| ID: mdl-15447398
ABSTRACT
The beta-neutrino correlation coefficient, a(betanu), in 21Na is inferred from detecting the beta(+) and low-energy recoil daughter nucleus. 21Na is produced at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory and 800 000 atoms are maintained in a magneto-optical trap. From the measured time of flight of recoil ions in the presence of a drift electric field, we find a(betanu)=0.5243+/-0.0091. There may be a dependence on the trapped atom population. This and other systematic uncertainties are discussed.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2004
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Article