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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/5958
Title: B(GT) strength from beta-decay measurements and inferred shape mixing in Kr-74
Authors: Poirier, E.; Maréchal, F.; Dessagne, Ph.; Algora, Alejandro; García Borge, María José; Cano Ott, Daniel; Caspar, J. C.; Courtin, S.; Devin, J.; Fraile, Luis M.; Gelletly, W.; Heitz, G.; Jungclaus, Andrea; Le Scornet, G.; Miehé, Ch.; Nácher, Enrique; Rubio, Berta; Sarriguren, Pedro; Taín, José Luis; Tengblad, Olof; Weber, C.
Keywords: Proton drip-line
Level density
Sr isotopes
[PACS] Single-particle levels and strength functions
[PACS] Beta decay: Relation with nuclear matrix elements and nuclear structure
[PACS] Properties of specific nuclei listed by mass ranges: 59 ≤ A ≤ 89
Issue Date: 3-Mar-2004
Publisher: American Physical Society
Citation: Physical Review C 69(3): 034307 (2004)
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.
Description: 8 pages, 5 figures.-- PACS nrs.: 21.10.Pc, 23.40.Hc, 27.50.+e.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevC.69.034307
URI: http://hdl.handle.net/10261/5958
ISSN: 0556-2813
DOI: 10.1103/PhysRevC.69.034307
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