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Prompt γ-ray spectroscopy of isotopically identified fission fragments

A. Shrivastava, M. Caamaño, M. Rejmund, A. Navin, F. Rejmund, K. -H. Schmidt, A. Lemasson, C. Schmitt, L. Gaudefroy, K. Sieja, L. Audouin, C. O. Bacri, G. Barreau, J. Benlliure, E. Casarejos, X. Derkx, B. Fernández-Domínguez, C. Golabek, B. Jurado, T. Roger, and J. Taieb
Phys. Rev. C 80, 051305(R) – Published 25 November 2009

Abstract

Measurements of prompt Doppler-corrected deexcitation γ rays from uniquely identified fragments formed in fusion-fission reactions of the type C12(U238,Xe134)Ru are reported. The fragments were identified in both A and Z using the variable-mode, high-acceptance magnetic spectrometer VAMOS. States built on the characteristic neutron configurations forming high-spin isomers (7 and 10+) in Xe134 are presented and compared with the predictions of shell-model calculations using a new effective interaction in the region of Z50 and N82.

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  • Received 8 October 2009

DOI:https://doi.org/10.1103/PhysRevC.80.051305

©2009 American Physical Society

Authors & Affiliations

A. Shrivastava1,*, M. Caamaño1,†, M. Rejmund1, A. Navin1,‡, F. Rejmund1, K. -H. Schmidt1,2, A. Lemasson1, C. Schmitt1, L. Gaudefroy3, K. Sieja2,4, L. Audouin5, C. O. Bacri5, G. Barreau6, J. Benlliure7, E. Casarejos7, X. Derkx1, B. Fernández-Domínguez1, C. Golabek1, B. Jurado6, T. Roger1, and J. Taieb3

  • 1GANIL, CEA/DSM—CNRS/IN2P3, Bd Henri Becquerel, BP 55027, F-14076 Caen Cedex 5, France
  • 2GSI-Helmholtzzentrum für Schwerionenforschung mbH, Planckstrasse 1, D-64220 Darmstadt, Germany
  • 3CEA, DAM, DIF, F-91297 Arpajon, France
  • 4Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
  • 5Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris Sud, F-91406 Orsay, France
  • 6Centre d’Etudes Nucléaires de Bordeaux Gradignan—UMR 5797, CNRS/IN2P3—Université Bordeaux 1, F-33175 Gradignan Cedex, France
  • 7Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain

  • *Permanent address: Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
  • Present address: Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
  • navin@ganil.fr

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Issue

Vol. 80, Iss. 5 — November 2009

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