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| Title: | B(GT) strength from beta-decay measurements and inferred shape mixing in Kr-74 |
Authors: | Poirier, E.; Maréchal, F.; Dessagne, Ph.; Algora, Alejandro CSIC ORCID; García Borge, María José CSIC ORCID; Cano Ott, Daniel; Caspar, J. C.; Courtin, S.; Devin, J.; Fraile, Luis M. CSIC ORCID; Gelletly, W.; Heitz, G.; Jungclaus, Andrea CSIC ORCID; Le Scornet, G.; Miehé, Ch.; Nácher, Enrique CSIC ORCID CVN; Rubio, Berta CSIC ORCID; Sarriguren, Pedro CSIC ORCID; Taín, José Luis CSIC ORCID; Tengblad, Olof CSIC ORCID ; 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 | DOI: | 10.1103/PhysRevC.69.034307 | ISSN: | 0556-2813 |
| Appears in Collections: | (CFMAC-IEM) Artículos (IFIC) Artículos |
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|---|---|---|---|---|
| Phys_Rev_C_69_034307.pdf | 399,53 kB | Adobe PDF |  View/Open |
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