2024-03-28T14:10:59Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1036692022-10-21T09:00:51Zcom_10261_135com_10261_4com_10261_49col_10261_388col_10261_175
β- decay of 65Mn to 65Fe
Olaizola, B.
Fraile, Luis M.
Mach, H.
Aprahamian, A.
Briz, José Antonio
Cal-González, J.
Ghita, D.
Köster, Ulli
Kurcewicz, W.
Lesher, S.R.
Pauwels, D.
Picado, E.
Poves, Alfredo
Radulov, D.
Simpson, G. S.
Udías, J. M
β‾
⁶⁵Fe
⁶⁵Mn
Radioactivity
B(XL)
Deduced ⁶⁵Fe
T ⅟₂
Measured ϒ ̶ ϒ coincidences
LaBr₃(Ce) detectors
HPGw
Fasttiming βϒ ̶ ϒ(t) method
The low-energy structure of 65Fe has been studied by means of γ and fast-timing spectroscopy at the ISOLDE facility, CERN. A level scheme of 65Fe populated following the β-decay of 65Mn was established for the first time. It includes 41 levels and 85 transitions. The excitation energy of the β-decaying isomer in 65Fe has been precisely determined at 393.7(2) keV. The β-delayed neutron emission branch was measured as Pn = 7.9(12)%, which cannot be reconciled with the previously reported value of 21.0(5)%. Four γ rays and four excited states in 64Fe were identified as being populated following the β-n decay. Four lifetimes and five lifetime limits in the subnanosecond range have been measured using the advanced time-delayed βγγ(t) method. The level scheme is compared with shell-model calculations. Tentative spin and parity assignments are proposed based on the observed transition rates, the calculations, and the systematics of the region. © 2013 American Physical Society.
This work was supported by the Spanish MINECO (FPA2010-17142 and FPA2011-29854), CPAN (CSD-2007- 00042@ Ingenio 2010), RA-NET NuPNET (PRI-PIMNUP- 2011-1338 and PRI-PIMMNUP-2011-1361) and Comunidad de Madrid, Spain (HEPHACOS S2009/ESP-1473). Support by Grupo de F´ısica Nuclear (GFN-UCM) and by the European Union Seventh Framework through ENSAR (Contract No. 262010) is also acknowledged.
Peer Reviewed
2014-10-22T08:41:06Z
2014-10-22T08:41:06Z
2013
2014-10-22T08:41:07Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1103/PhysRevC.88.044306
issn: 0556-2813
Physical Review C - Nuclear Physics 88: 044306 (2013)
http://hdl.handle.net/10261/103669
10.1103/PhysRevC.88.044306
open
American Physical Society