Measurement of lifetimes inMg23

Authors :: G. Christian
Chris Ruiz
S. T. Nielsen
C. Unsworth
A. B. Garnsworthy
Jennifer Fallis
A. Rojas
A. Sanetullaev
A. J. Radich
R. Churchman
C. J. Pearson
Christopher Wrede
L. J. Evitts
J.C. Lighthall
D. Miller
Barry Davids
G. Hackman
C. R. Nobs
Oliver S. Kirsebom
A. Cheeseman
N. Galinski
M. M. Rajabali
D. S. Cross
P. Machule
P. C. Bender
Steffen Ketelhut
Source :: Physical Review C. 93
Publication Year :: 2016
Publisher :: American Physical Society (APS), 2016.
Abstract: Several lifetimes in $^{23}\text{Mg}$ have been determined for the first time using the Doppler-shift attenuation method. A Monte Carlo simulation code has been written to model the $\ensuremath{\gamma}$-ray line shape. An upper limit of $\ensuremath{\tau}l12$ fs at the 95% C.L. has been obtained for the astrophysically important 7787 keV state.