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Claes Fahlander

Professor emeritus

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Gamma-ray Spectroscopy of the Doubly Magic Nucleus 56Ni

Author

  • Emma Johansson
  • Dirk Rudolph
  • Jörgen Ekman
  • Claes Fahlander
  • Corina Andreoiu
  • M A Bentley
  • MP Carpenter
  • RJ Charity
  • RM Clark
  • P Fallon
  • RVF Janssens
  • FG Kondev
  • TL Khoo
  • T Lauritsen
  • AO Macchiavelli
  • W Reviol
  • DG Sarantites
  • D Seweryniak
  • CE Svensson
  • SJ Williams
Show all

Summary, in English

The doubly magic N = Z nucleus Ni-56 has been investigated with two fusion-evaporation reactions; Ca-40(Si-28, 3 alpha)Ni-56 at a beam energy of 122MeV and Si-28(S-32, 2p2n)Ni-56 at 130MeV. To detect gamma-rays in coincidence with evaporated particles the Ge-detector array Gammasphere was used in conjunction with the charged-particle detector system, Microball and a 1 pi neutron detector array. Results include a significantly extended level scheme of Ni-56, which is compared to large-scale shell model calculations in the fp shell. The experimental and theoretical results agree to a large extent, with one notable exception; the theoretical model fails to predict the proper sequence of the yrast and yrare 8(+) states.

Department/s

  • Nuclear physics

Publishing year

2006

Language

English

Pages

157-165

Publication/Series

European Physical Journal A. Hadrons and Nuclei

Volume

27

Issue

2

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

Project

  • Nuclear Structure and Exotic Decays: Doubly-magic 56Ni and Semi-magic 58Ni

Research group

  • Nuclear Structure

ISBN/ISSN/Other

  • ISSN: 1434-6001