Lowest Excitations in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">T</mml:mi><mml:mi mathvariant="normal">i</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mn>56</mml:mn></mml:mmultiscripts></mml:math>and the Predicted<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>34</mml:mn></mml:math>Shell Closure
S. N. LiddickNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USAP. F. ManticaDepartment of Chemistry, Michigan State University, East Lansing, Michigan 48824, USAR. V. F. JanssensPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAR. BrodaNiewodniczanski Institute of Nuclear Physics, PL-31342 Cracow, PolandB. A. BrownDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USAM. P. CarpenterPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAB. FornalNiewodniczanski Institute of Nuclear Physics, PL-31342 Cracow, PolandMareki HonmaCenter for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580, JapanT. MizusakiInstitute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580, JapanA. C. MortonNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USAW. F. MuellerMichigan State UniversityTakaharu OtsukaDepartment of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan and RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, JapanJ. PavanDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USAA. StolzNational Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USAS. L. TaborDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USAB. E. TomlinDepartment of Chemistry, Michigan State University, East Lansing, Michigan 48824, USAM. WiedekingDepartment of Physics, Florida State University, Tallahassee, Florida 32306, USA
2004lv
ABI
Annotatsiya
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 56Sc produced in fragmentation reactions and identified new gamma rays in the daughter N=34 isotone 56Ti. 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 56Ti.
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