Paziy, V, Fraile, L. M., Mach, H., Olaizola, B., Simpson, G. S., Aprahamian, A., Bernards, C., Briz, J. A., Bucher, B., Chiara, C. J., Dlouhy, Z., Gheorghe, I, Ghita, D., Hoff, P., Jolie, J., Koster, U., Kurcewicz, W., Lica, R., Marginean, N., Marginean, R., Regis, J-M, Rudigier, M., Sava, T., Stanoiu, M., Stroe, L. and Walters, W. B. (2020). Fast-timing study of Ga-81 from the beta decay of Zn-81. Phys. Rev. C, 102 (1). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

The beta-decay of Zn-81 to the neutron magic N = 50 nucleus Ga-81, with only three valence protons with respect to Ni-78, was investigated. The study was performed at the ISOLDE facility at CERN by means of gamma spectroscopy. The 81Zn half-life was determined to be T-1/2 = 290(4) ms while the beta-delayed neutron emission probability was measured as P-n = 23(4)%. The analysis of the beta-gated gamma-ray singles and gamma-gamma coincidences from the decay of Zn-81 provides 47 new levels and 70 new transitions in Ga-81. The beta(-)n decay of Zn-81 was observed and a new decay scheme into the odd-odd Ga-80 nucleus was established. The half-lives of the first and second excited states of Ga-81 were measured via the fast-timing method using LaBr3(Ce) detectors. The level scheme and transition rates are compared to large-scale shell-model calculations. The low-lying structure of (81)Gais interpreted in terms of the coupling of the three valence protons outside the doubly magic Ni-78 core.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Paziy, VUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fraile, L. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mach, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Olaizola, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Simpson, G. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Aprahamian, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bernards, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Briz, J. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bucher, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chiara, C. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dlouhy, Z.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gheorghe, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ghita, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hoff, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jolie, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Koster, U.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kurcewicz, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lica, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marginean, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marginean, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Regis, J-MUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rudigier, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sava, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stanoiu, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stroe, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Walters, W. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-325495
DOI: 10.1103/PhysRevC.102.014329
Journal or Publication Title: Phys. Rev. C
Volume: 102
Number: 1
Date: 2020
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1089-490X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
PICOSECOND LIFETIME MEASUREMENTS; NEUTRON-RICH ISOTOPES; NUCLEI; BEAMS; ZNMultiple languages
Physics, NuclearMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/32549

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