Published February 20, 2004 | Version v1
Journal article

Lowest excitations in Ti56 and the predicted N=34 shell closure

  • 1. Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 (United States)
  • 2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
  • 3. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  • 4. Niewodniczanski Institute of Nuclear Physics, PL-31342 Cracow (Poland)
  • 5. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
  • 6. Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580 (Japan)
  • 7. Institute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580 (Japan)
  • 8. Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan and RIKEN, Hirosawa, Wako-shi, Saitama 351-0198 (Japan)
  • 9. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

Description

Recent experimental characterization of the subshell closure at N=32 in the Ca, Ti, and Cr isotones has stimulated shell-model calculations that indicated the possibility that the N=34 isotones of these same elements could exhibit characteristics of a shell closure, namely, a high energy for the first excited 2+ level. To that end, we have studied the decay of Sc56 produced in fragmentation reactions and identified new γ rays in the daughter N=34 isotone Ti56. The first 2+ level is found at an energy of 1127 keV, well below the expected position that would indicate the presence of an N=34 shell closure in Ti56

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
92
Journal Issue
7
Journal Page Range
p. 072502-072502.4
ISSN
0031-9007
CODEN
PRLTAO

Optional Information

Notes
(c) 2004 The American Physical Society