Discovery of a long-lived low-lying isomeric state in $^{80}\mathrm{Ga}$

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Discovery of a long-lived low-lying isomeric state in ${}^{80}{Ga}$

B. Cheal, J. Billowes, M. L. Bissell, K. Blaum, F. C. Charlwood, K. T. Flanagan, D. H. Forest, S. Fritzsche, Ch. Geppert, A. Jokinen, M. Kowalska, A. Krieger, J. Krämer, E. Mané, I. D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, M. M. Rajabali, M. Schug, H. H. Stroke, P. Vingerhoets, D. T. Yordanov, and M. Žáková

Phys. Rev. C 82, 051302(R) – Published 11 November 2010

Abstract

Collinear laser spectroscopy was performed on the ${}^{80}{Ga}$ isotope at ISOLDE, CERN. A low-lying isomeric state with a half-life much greater than $200$ ms was discovered. The nuclear spins and moments of the ground and isomeric states and the isomer shift are discussed. Probable spins and parities are assigned to both long-lived states ( $3^{-}$ and $6^{-}$ ) deduced from a comparison of the measured moments to shell-model calculations.

Received 28 September 2010

DOI:https://doi.org/10.1103/PhysRevC.82.051302

Authors & Affiliations

B. Cheal^1,*, J. Billowes¹, M. L. Bissell², K. Blaum³, F. C. Charlwood¹, K. T. Flanagan⁴, D. H. Forest⁵, S. Fritzsche^6,7, Ch. Geppert^6,8, A. Jokinen^9,10, M. Kowalska^3,11, A. Krieger⁸, J. Krämer⁸, E. Mané¹, I. D. Moore^9,10, R. Neugart⁸, G. Neyens², W. Nörtershäuser^6,8, M. M. Rajabali², M. Schug³, H. H. Stroke¹², P. Vingerhoets², D. T. Yordanov³, and M. Žáková⁸

¹School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
²Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
³Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
⁴CNRS, CSNSM, IN2P3, F-91405 Orsay, France
⁵School of Physics and Astronomy, The University of Birmingham, Birmingham B15 2TT, United Kingdom
⁶GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
⁷Department of Physics, Post Office Box 3000, University of Oulu, FIN-90014 Oulu, Finland
⁸Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
⁹Department of Physics, University of Jyväskylä, FIN-40014 Jyväskylä, Finland
¹⁰Helsinki Institute of Physics, University of Helsinki, FIN-00014 Helsinki, Finland
¹¹Physics Department, CERN, CH-1211 Geneva 23, Switzerland
¹²Department of Physics, New York University, New York, New York 10003, USA

^*bradley.cheal@manchester.ac.uk

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Vol. 82, Iss. 5 — November 2010

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Physical Review C

covering nuclear physics

Discovery of a long-lived low-lying isomeric state in ${}^{80}{Ga}$

Phys. Rev. C 82, 051302(R) – Published 11 November 2010

Abstract

Authors & Affiliations

Article Text (Subscription Required)

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Physical Review C

covering nuclear physics

Discovery of a long-lived low-lying isomeric state in Ga80

Phys. Rev. C 82, 051302(R) – Published 11 November 2010

Abstract

Authors & Affiliations

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Discovery of a long-lived low-lying isomeric state in ${}^{80}{Ga}$