Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 589, Issue 3, Pages 472-483Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2008.02.098
Keywords
exotic nuclei; half-lives; statistical analysis
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This paper reports the first application of a new technique to measure the P-decay half-lives of exotic nuclei in complex background conditions. Since standard tools were not adapted to extract the relevant information, a new analysis method was developed. The time distribution of background events is established by recording time correlations in backward time. The P half-lives of the nuclides and the detection efficiency of the set-up are determined simultaneously from a least-squares fit of the ratio of the time-correlation spectra recorded in for-ward and in backward time, using numerical functions. The necessary numerical functions are calculated in a Monte Carlo code using the known operation parameters of the experiment and different values for the two free parameters, half-life and detection efficiency, as input parameters. (c) 2008 Elsevier B.V. All rights reserved.
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