JYFL-ACCLAB-JM29 In-beam spectroscopy and recoil-beta tagging study of the Tz = -1 nucleus 70Kr

  • George Zimba (Creator)
  • Panu Ruotsalainen (Creator)
  • Panu Rahkila (Creator)
  • Jan Saren (Creator)
  • Juha Uusitalo (Creator)
  • Kalle Auranen (Creator)
  • Zhuang Ge (Creator)
  • Tuomas Grahn (Creator)
  • Paul Greenlees (Creator)
  • Henna Joukainen (Creator)
  • Rauno Julin (Creator)
  • Henri Jutila (Creator)
  • Anu Kankainen (Creator)
  • Jussi Louko (Creator)
  • Minna Luoma (Creator)
  • Janne Pakarinen (Creator)
  • Andrea Raggio (Creator)
  • Jorge Romero Fernández (Creator)
  • Marek Stryjczyk (Creator)
  • Alvaro Tolosa Delgado (Creator)
  • Alexandra Zadvornaya (Creator)
  • Andrew Briscoe (Creator)
  • Andres Illana Sison (Creator)
  • Joonas Ojala (Creator)
  • Robert Wadsworth (Creator)
  • David Jenkins (Creator)
  • Giacomo de Angelis (Creator)



Excited states in the 70Kr and 70Br nuclei were populated via the 40Ca(32S,2n)70Kr and 40Ca(32S,pn)70Br fusion-evaporation reactions at the Accelerator Laboratory of the University of Jyväskylä. The 2+ -> 0+ and 4+ -> 2+ transitions in 70Kr have been found to be 881(1) keV and (tentatively) 1037(2) keV, respectively. Several new gamma-ray transitions were also identified in 70Br, and the T = 1 band has been tentatively extended up to J=10+. The newly observed transitions in 70Kr and 70Br resolve discrepancies in the previously reported results for these nuclei. The experimental Coulomb, triplet, and mirror energy differences are compared with the results of two independent shell-model calculations. The comparisons aim to investigate the shape evolution and the role of the isospin breaking interactions in this mass region.

External deposit with Finnish Fairdata services.
Date made available31 Dec 2024
PublisherFinnish Fairdata services

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