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Claes Fahlander

Professor emeritus

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Effective Charges in the fp Shell

Author

  • Rickard du Rietz
  • Jörgen Ekman
  • Dirk Rudolph
  • Claes Fahlander
  • A Dewald
  • O Moller
  • B Saha
  • M Axiotis
  • MA Bentley
  • C Chandler
  • G de Angelis
  • F Della Vedova
  • A Gadea
  • G Hammond
  • SM Lenzi
  • N Marginean
  • DR Napoli
  • M Nespolo
  • C Rusu
  • D Tonev
Show all

Summary, in English

Following the heavy-ion fusion-evaporation reaction S-32+Mg-24 at 95 MeV beam energy the lifetimes of analogue states in the T-z=+/-1/2 A=51 mirror nuclei Fe-51 and Mn-51 have been measured using the Cologne plunger device coupled to the GASP gamma-ray spectrometer. The deduced B(E2;27/2(-)-->23/2(-)) values afford a unique opportunity to probe isoscalar and isovector polarization charges and to derive effective proton and neutron charges, epsilon(p) and epsilon(n), in the fp shell. A comparison between the experimental results and several different large-scale shell-model calculations yields epsilon(p)similar to1.15e and epsilon(n)similar to0.80e.

Department/s

  • Nuclear physics

Publishing year

2004

Language

English

Publication/Series

Physical Review Letters

Volume

93

Issue

22

Document type

Journal article (letter)

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

Research group

  • Nuclear Structure

ISBN/ISSN/Other

  • ISSN: 1079-7114