Exotic N=82 nuclei <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Lu</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>153</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Hf</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>154</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> and filling of the π<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>h</mi></mrow><mrow><mn>1</mn><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></math> subshell

J. H. McNeill; J. Blomqvist; A. A. Chishti; P. J. Daly; W. Gelletly; M. A. C. Hotchkis; M. Piiparinen; B. J. Varley; P. J. Woods

doi:10.1103/PhysRevLett.63.860

Exotic N=82 nuclei ${}^{153}{Lu}$ and ${}^{154}{Hf}$ and filling of the π $h_{11 / 2}$ subshell

J. H. McNeill, J. Blomqvist, A. A. Chishti, P. J. Daly, W. Gelletly, M. A. C. Hotchkis, M. Piiparinen, B. J. Varley, and P. J. Woods

Phys. Rev. Lett. 63, 860 – Published 21 August 1989

Abstract

Microsecond isomers in the very proton-rich N=82 nuclei ${}^{153}{Lu}$ and ${}^{154}{Hf}$ have been identified by γ-ray spectroscopy following mass analysis of ${}^{102}{Pd}$ +245 MeV ${}^{54}{Fe}$ reaction products using the Daresbury Recoil Separator. The decays of the isomers, interpreted as (π $h_{11 / 2}$ $)^{n}$ states, are characterized. Examination of reduced E2 transition rates between (π $h_{11 / 2}$ $)^{n}$ states in the N=82 isotones indicates that the half-filling of the π $h_{11 / 2}$ subshell occurs just below Z=71.

Received 24 April 1989

DOI:https://doi.org/10.1103/PhysRevLett.63.860

Authors & Affiliations

J. H. McNeill, J. Blomqvist, A. A. Chishti, P. J. Daly, W. Gelletly, M. A. C. Hotchkis, M. Piiparinen, B. J. Varley, and P. J. Woods

Department of Physics, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
Manne Siegbahn Institute of Physics, S-10405 Stockholm, Sweden
Chemistry Department, Purdue University, West Lafayette, Indiana 47907
Department of Physics, Jyväskylä University, SF-40100 Jyväskylä, Finland
Department of Physics, University of Edinburgh, Edenburgh EH9 3JZ, United Kingdom