Seeking the phase transition where Cd, Ag, Pd, Rh, and Ru
isotopes become “neutron rich”: Isomeric decay in 125,126,127Cd,
123,124,125Ag, 121Pd, 120Rh, and 117Ru |
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| Authors: | B E Tomlin P F Mantica and W B Walters |
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| Institution: | (1) National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA;(2) Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA;(3) Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA |
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| Abstract: | Gamma rays have been identified in the decay of isomers
in 125,126,127Cd, 123,124,125Ag,
121Pd, 120Rh, and 117Ru that provide information about the
low-energy structures of these nuclei. In turn, comparison of low-energy
levels in the Cd and Te isotones
reveals that, whereas the yrast structures
in the Te isotopes rise smoothly as N approaches the closed shell at
82, the 15/2- to 11/2- transitions level off as N exceeds 76. This is
identified as the point where the Cd isotopes undergo a phase transition and
become “neutron rich”. |
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| Keywords: | 25 70 Mn Projectile and target fragmentation 23 20 Lv Gamma transitions and level energies |
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