As-67-Se-67 mirror pair spectroscopy

K. T. Wiedemann, N. H. Medina, G. de Angelis, R. Orlandi, A. Bracco, M. Carpenter, C. J. Chiara, F. Della Vedova, E. Farnea, A. Gadea, J. Greene, S. M. Lenzi, S. Leoni, C. J. Lister, S. Lunardi, N. Marginean, D. R. Napoli, B. S. Nara Singh, O. L. Pechenaya, W. ReviolE. Sahin, D. G. Sarantites, D. Seweryniak, D. Tonev, C. A. Ur, J. J. Valiente-Dobon, R Wadsworth, S. Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This work focus on the electromagnetic decay properties of the heaviest known mirror pair As-67 and Se-67, produced in the fusion evaporation reaction S-32+Ca-40, with a E=90MeV beam provided by the ATLAS accelerator at Argonne National Laboratory. The high selectivity required to investigate these proton-rich nuclei was achieved with the concurrent employment of Gammasphere, Neutron-Shell, and Microball. The full array allowed to obtain the level scheme of the Se-67 nucleus up to 5.56 MeV, and 5 new transitions were assigned to the known As-67 level-scheme. The level spin and parities were assigned using the ADO analysis and symmetry arguments.

Original languageEnglish
Title of host publicationNUCLEAR PHYSICS 2008
EditorsV Guimaraes, JR BrandaoDeOliveira, KCD Macario, FA Genezini
Place of PublicationMELVILLE
PublisherAmerican Institute of Physics
Number of pages4
ISBN (Print)978-0-7354-0676-6
Publication statusPublished - 2009


  • Nuclear physics
  • nuclear structure
  • gamma spectroscopy
  • isospin symmetry
  • mirror nuclei

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