Three-Laboratory Measurement of the {sup 44}Ti Half-Life
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Dipartimento di Fisica Generale dell`Universita, Via P. Giuria 1, I-10125 Torino (Italy)
- Institut fuer Radiumforschung und Kernphysik der Universitaet Wien, Boltzmanngasse 3, A-1090 Vienna (Austria)
- Racah Institute of Physics, Hebrew University, Jerusalem, Israel 91904; University of Chicago, Chicago, Illinois 60637 (United States)
We report on a measurement of the {sup 44}Ti half-life aimed at lowering existing systematic uncertainties in this value, which is important to astrophysics. The half-life was measured by following the decay of {sup 44}Ti relative to {sup 60}Co for about 5yr and the measurements were performed independently in three laboratories{emdash}Argonne, Jerusalem, and Torino. We suggest to combine our result, 59.0{plus_minus}0.6yr, with the one from the accompanying Letter by G{umlt o}rres {ital et al.,} 60.3{plus_minus}1.3yr, to obtain a current {open_quotes}best value{close_quotes} for the half-life of {sup 44}Ti of 59.2{plus_minus}0.6 yr (1{sigma} error). {copyright} {ital 1998} {ital The American Physical Society}
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 597233
- Journal Information:
- Physical Review Letters, Vol. 80, Issue 12; Other Information: PBD: Mar 1998
- Country of Publication:
- United States
- Language:
- English
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