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Joakim

Joakim Cederkäll

Professor

Joakim

Cd-98(48)50: The two-proton-hole spectrum in Sn-100(50)50

Author

  • M Gorska
  • M Lipoglavsek
  • H Grawe
  • J Nyberg
  • A Atac
  • A Axelsson
  • R Bark
  • J Blomqvist
  • Joakim Cederkäll
  • B Cederwall
  • G deAngelis
  • C Fahlander
  • A Johnson
  • S Leoni
  • A Likar
  • M Matiuzzi
  • S Mitarai
  • LO Norlin
  • M Palacz
  • J Persson
  • HA Roth
  • R Schubart
  • D Seweryniak
  • T Shizuma
  • O Skeppstedt
  • G Sletten
  • WB Walters
  • M Weiszflog
Show all

Summary, in English

Excited states in Cd-98, two proton holes from Sn-100, were identified and studied for the first time, using in-beam spectroscopy with highly selective ancillary detectors. The structure of the (pi g(9/2))(-2) two-proton-hole spectrum below a T-1/2 = 0.48(16) mu s isomer is deduced and compared to shell-model predictions. A tentative I-pi = (8(+)) assignment, as suggested by systematics, yields a strongly reduced B(E2,8(+) --> 6(+)) = 0.44((+20)(-10)) W.u., corresponding to an effective proton charge of e(pi) = 0.85((+20)(-10))e, which is at variance with existing theoretical predictions.

Publishing year

1997

Language

English

Pages

2415-2418

Publication/Series

Physical Review Letters

Volume

79

Issue

13

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1079-7114