Speaker
Dr
Kate Jones
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Description
Characterizing the nature of single-particle states outside of double shell closures is essential to a fundamental understanding of nuclear structure. This is especially true for those doubly magic nuclei that lie far from stability and where the shell closures influence nucleo-synthetic pathways. The region around 100Sn is one of the most important due to the proximity of the N=Z=50 magic numbers, the proton-drip line, and the end of the rp-process. However, owing to the low production rates, there is a paucity of spectroscopic information and no firm spin-parity assignment for ground states of odd-A isotopes close to 100Sn. Neutron knockout reaction experiments on beams of 108,106Sn have been performed at the NSCL. By measuring gamma rays and momentum distributions from reaction residues, the spins of the ground and first excited states for 107,105Sn have been established. The results also show a degree of mixing in the ground states of the isotopes 108,106Sn between the d5/2 and g7/2 single particle-states. Momentum distributions, compared to Eikonal-model reaction calculations, and cross sections will be presented.
Primary author
Dr
Kate Jones
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Co-authors
Aimee Shore
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Alexandra Gade
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Mr
Andrew Ayres
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Andrew Ratkiewicz
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Andy Chae
(Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA)
Anissa Bey
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Carrol Bingham
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Daniel Bazin
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
David Miller
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Dirk Weisshaar
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Dr
Giordano Cerizza
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Jeff Tostevin
(Department of Physics, University of Surrey, Guildford, GU2 7XH UK)
Jill Berryman
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Kathrin Wimmer
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Lucia Cartegni
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Meredith Howard
(Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854 USA)
Ragnar Stroberg
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Robert Grzywacz
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Sean McDaniel
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Stephen Padgett
(Department of Physics and Astronomy,University of Tennessee, Knoxville, TN 37996 USA)
Steven Pain
(Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA)
Travis Baugher
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
Winkler Ryan
(National Superconducting Cyclotron and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 USA)
