Nuclear Structure in Neutron Rich Gd

ORAL

Abstract

Deformed nuclei at midpoints between closed spherical shells form some of the best nuclear rotors known. Only a few nucleons away from the exact midshell in Z=66 and N=104, these nuclei have been shown to have very consistent I(I+1) spacing in the yrast band. By studying the energy systematics of the non-yrast and parent ground states we can further probe the structure of these nuclei. Nuclei for this study were produced via proton induced fission of $^{238}$U at HRIBF at ORNL. They were measured at the Low-energy RIB Spectroscopy Station (LeRIBSS) which utilizes beta and gamma detection as well as a MTC (Moving Tape Collector) which allows for parent lifetime measurements. In addition to 5 new levels in $^{162}$Gd,levels in $^{162,164}$Gd are both populated via beta- decay up to the 8$^{+}$ yrast levels. We will present and discuss new results from the beta decay of these isotopes.

Authors

  • Nathan Brewer

    • Vanderbilt
  • J.C. Batchelder

    • UNRIB/ORAU
  • J.H. Hamilton

    • Vanderbilt
  • A.V. Ramayya

    • Vanderbilt
  • C.J. Gross

    • ORNL
  • K.P. Rykaczewski

    • ORNL, Warsaw Univ.
  • R. Grzywacz

    • U. Tennessee
  • M. Madurga

    • U. Tennessee
  • D. Miller

    • U. Tennessee
  • D. Stracener

    • ORNL
  • C. Jost

    • ORNL
  • E. Zganjar

    • Louisiana State
  • J.A. Winger

    • Mississippi State
  • M. Karny

    • ORNL, ORAU, Warsaw University
  • S.V. Paulauskas

    • U. Tennessee
  • S.H. Liu

    • ORNL
  • M. Wolinska-Cichocka

    • ORNL, ORAU
  • S. Padgett

    • U. Tennessee
  • T. Mendez

    • ORNL
  • K. Miernik

    • ORNL
  • A. Kuzniak

    • U. Tennessee, Warsaw Univ.