B(E1) stirengths and isospin symmetry in As-67 and Se-67

Orlandi R., de Angelis G., Della Vedova F., Gadea A., Napoli D. R., Recchia F., ...Daha Fazla

International Conference on Proton Emitting Nuclei and Related Topics, Lisbon, Portekiz, 17 - 23 Haziran 2007, cilt.961, ss.190-191 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 961
  • Basıldığı Şehir: Lisbon
  • Basıldığı Ülke: Portekiz
  • Sayfa Sayıları: ss.190-191
  • İstanbul Üniversitesi Adresli: Hayır

Özet

In a recent experiment at Argonne National Laboratory, new spectroscopic information was obtained for the mirror pair As-67 and Se-67 via the measurement of the lifetime of analogue 9/2(+) excited states. The nuclei of interest were populated via the fusion evaporation reaction of S-32 on Ca-40, and selected by the combination of Gammasphere, Microball and the Neutron Wall arrays. The mirror B(E 1) strengths were measured via the centroid shift method in analogue E I transitions in 67As and 67Se. These findings are significant in determining the extent of conservation of isospin symmetry.