Isomer and in-beam spectroscopy of medium-spin states in Zr-91,Zr-92

Regan P., Thompson N., Garnsworthy A., Ai H., Amon L., Cakirli R. , ...More

12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, Indiana, United States Of America, 4 - 09 September 2005, vol.819, pp.35-36 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 819
  • City: Indiana
  • Country: United States Of America
  • Page Numbers: pp.35-36


Near-yrast states have been identified in the stable Zr-91,Zr-92 isotopes using the fusion evaporation reaction Se-82(C-13,xn)Zr95-x at an incident beam energy of 50 MeV. Gamma-ray spectroscopy of states above the reported tau = 6 mu s, I-pi=(21)/(+)(2) isomer in Zr-91 are reported for the first time with consequences for stimulating new shell model calculations which incorporate either the breaking of the N=50 shell closure and/or the inclusion of the negative parity h(11/2) neutron intruder orbital.