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Decay half-lives of Co 76,77, Ni 79,80, and Cu 81: Experimental indication of a doubly magic Ni 78

AuthorsXu, Z.Y.; Nishimura, S.; Lorusso, G.; Browne, F.; Doornenbal, P.; Gey, G.; Jung, H.-S.; Li, Z.; Niikura, M.; Söderström, P.-A.; Sumikama, T.; Taprogge, J.
Issue Date2014
PublisherAmerican Physical Society
CitationPhysical Review Letters 113: 032505 (2014)
AbstractThe half-lives of 20 neutron-rich nuclei with Z=27-30 have been measured at the RIBF, including five new half-lives of Co76(21.7-4.9+6.5ms), Co77(13.0-4.3+7.2ms), Ni79(43.0-7.5+8.6ms), Ni80(23.9-17.2+26.0ms), and Cu81(73.2±6.8ms). In addition, the half-lives of Co73-75, Ni74-78, Cu78-80, and Zn80-82 were determined with higher precision than previous works. Based on these new results, a systematic study of the β-decay half-lives has been carried out, which suggests a sizable magicity for both the proton number Z=28 and the neutron number N=50 in Ni78. © 2014 American Physical Society.
DescriptionXu, Z.Y., et all ; 5 pags. 4 figs. ; 1 tab. ; PACS numbers: 23.40.−s, 27.50.+e
Identifiersdoi: 10.1103/PhysRevLett.113.032505
issn: 1079-7114
Appears in Collections:(CFMAC-IEM) Artículos
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