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B(GT) Strength from Beta-Decay Measurements and Inferred Shape Mixing in Kr-74

Poirier, E, Marechal, F, Dessagne, P, Algora, A, Borge, M J, Cano-Ott, D, Caspar, J C, Courtin, S, Devin, J, Fraile, L M, Gelletly, W, Heitz, G, Jungclaus, A, Le Scornet, G, Miehe, C, Nacher, E, Rubio, B, Sarriguren, P, Tain, J L, Tengblad, O and Weber, C (2004) B(GT) Strength from Beta-Decay Measurements and Inferred Shape Mixing in Kr-74 Physical Review C, 69 (3). ISSN 0556-2813

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Abstract

A total absorption spectrometer, dedicated to the study of very short-lived atomic species, has been built and installed at the CERN/ISOLDE mass separator. The beta decay of the neutron-deficient Kr-74 nucleus has been studied using this new device. The Gamow-Teller strength distribution has been observed over most of the Q(EC) window, and a total strength of 0.69(3) g(A)(2)/4pi has been measured for states with excitation energy below 3 MeV. Shape mixing in the Kr-74 ground state is inferred from a comparison of the experimental strength distribution with self-consistent, deformed, quasiparticle-random-phase-approximation calculations.

Item Type: Article
Additional Information: Published in <i>Physical Review C,</i> Vol. 69, Iss. 3. Copyright 2004 American Physical Society. Click <a href=http://prc.aps.org/>here</a> to access the journal's website.
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:09
Last Modified: 23 Sep 2013 18:28
URI: http://epubs.surrey.ac.uk/id/eprint/455

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