Precision half-life measurement of Al25

Precision half-life measurement of Al25 A new precision half-life measurement of Al25 was conducted using the TwinSol β-counting station at the University of Notre Dame. The new measured value of t1/2new=7.1657(24) s is in good agreement with the most recent measurement, while being 3 times more precise. Using these new measurements, an evaluation of the Al25 half-life has been performed, leading to an average half-life of t1/2world=7.1665(26) s, which is 5 times more precise than it's predecessor and has a more satisfactory Birge ratio of 1.1. To aid in future measurements of correlation parameters, a new Fermi to Gamow-Teller mixing ratio ρ and correlation parameters for this mixed transition have been calculated assuming the standard model validity using the new world half-life. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

Precision half-life measurement of Al25

Abstract

A new precision half-life measurement of Al25 was conducted using the TwinSol β-counting station at the University of Notre Dame. The new measured value of t1/2new=7.1657(24) s is in good agreement with the most recent measurement, while being 3 times more precise. Using these new measurements, an evaluation of the Al25 half-life has been performed, leading to an average half-life of t1/2world=7.1665(26) s, which is 5 times more precise than it's predecessor and has a more satisfactory Birge ratio of 1.1. To aid in future measurements of correlation parameters, a new Fermi to Gamow-Teller mixing ratio ρ and correlation parameters for this mixed transition have been calculated assuming the standard model validity using the new world half-life.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
0556-2813
eISSN
1089-490X
D.O.I.
10.1103/PhysRevC.96.015502
Publisher site
See Article on Publisher Site

Abstract

A new precision half-life measurement of Al25 was conducted using the TwinSol β-counting station at the University of Notre Dame. The new measured value of t1/2new=7.1657(24) s is in good agreement with the most recent measurement, while being 3 times more precise. Using these new measurements, an evaluation of the Al25 half-life has been performed, leading to an average half-life of t1/2world=7.1665(26) s, which is 5 times more precise than it's predecessor and has a more satisfactory Birge ratio of 1.1. To aid in future measurements of correlation parameters, a new Fermi to Gamow-Teller mixing ratio ρ and correlation parameters for this mixed transition have been calculated assuming the standard model validity using the new world half-life.

Journal

Physical Review CAmerican Physical Society (APS)

Published: Jul 12, 2017

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