High-precision measurement of the 19Ne half-life and implications for right-handed weak currents.
Phys Rev Lett
; 109(4): 042301, 2012 Jul 27.
Article
em En
| MEDLINE
| ID: mdl-23006079
ABSTRACT
We report a precise determination of the (19)Ne half-life to be T(1/2)=17.262±0.007 s. This result disagrees with the most recent precision measurements and is important for placing bounds on predicted right-handed interactions that are absent in the current standard model. We are able to identify and disentangle two competing systematic effects that influence the accuracy of such measurements. Our findings prompt a reassessment of results from previous high-precision lifetime measurements that used similar equipment and methods.
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MEDLINE
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article