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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4949| Title: | The N=Z nucleus Sr-76: Gamow-Teller strength and nuclear deformation |
| Keywords: | [PACS] Spin, parity, and isobaric spin [PACS] γ transitions and level energies [PACS] Relation with nuclear matrix elements and nuclear structure [PACS] Properties of specific nuclei listed by mass ranges: 59 ≤ A ≤ 89 |
| Publisher: | Società Italiana di Fisica Springer |
| Description: | 7 pages, 4 tables, 6 figures.--PACS nrs.: 21.10.Hw; 23.20.Lv; 23.40.Hc; 27.50.+e. Challenged by recent theoretical work, a, study of the β(+)-EC decay of the N = Z even-even nucleus Sr-76 has been undertaken in order to assign the parent ground-state deformation. lit this study 13 levels with J(π) = 1(+) have been located in Rb-76. The β-delayed proton emission has been observed for the first time in an N = Z even-even nucleus. The betap branching ratio has been determined to be (3.4 ± 0.8)x10(-5). The Sr-76 half-life has been remeasured and a more precise value of 7.89 ± 0.07 s has been obtained. On the basis of the comparison of measured Gamow-Teller strength with calculated strength distributions for both oblate and prolate deformation, it is concluded that the Sr-76 has strong prolate deformation in the ground state. This work was partially supported by the Spanish Agency CICYT under contract Nos. AEN96-1679 and AEN99-1046-C02-01, and by the French and Spanish Agreement IN2P3-CICYT. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4949 |
| Other Identifiers: | The European Physical Journal A: Hadrons and Nuclei 20(3): 405–411 (2004) 1434-6001 (Print) 1434-601X (Online) http://hdl.handle.net/10261/4949 10.1140/epja/i2003-10171-6 |
| Appears in Collections: | Digital Csic |
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