Development of shell closures at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>32</mml:mn><mml:mo>,</mml:mo><mml:mn>34</mml:mn></mml:mrow></mml:mrow></mml:math>. II. Lowest yrast excitations in even-even<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mi mathvariant="normal">Ti</mml:mi></mml:mrow></mml:mrow></mml:math>isotopes from deep-inelastic heavy-ion collisions
B. FornalInstitute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow, PolandS. J. ZhuPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAR. V. F. JanssensPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAMareki HonmaCenter for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580, JapanR. BrodaInstitute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow, PolandP. F. ManticaDepartment of Chemistry, Michigan State University, East Lansing, Michigan 48824, USAB. A. BrownDepartment of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USAM. P. CarpenterPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAP.J. DalyChemistry and Physics Departments, Purdue University, West Lafayette, Indiana 47907, USAS. J. FreemanDepartment of Physics and Astronomy, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomZ. W. GrabowskiChemistry and Physics Departments, Purdue University, West Lafayette, Indiana 47907, USAN. J. HammondPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAFG KondevNuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USAW. KrólasInstitute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow, PolandT. LauritsenPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAS. N. LiddickDepartment of Chemistry, Michigan State University, East Lansing, Michigan 48824, USAC. J. ListerPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAE. MoorePhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAT. OtsukaDepartment of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan and RIKEN, Hirosawa,Wako-shi, Saitama 351-0198, JapanT. PawłatInstitute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow, PolandD. SeweryniakPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAB. E. TomlinDepartment of Chemistry, Michigan State University, East Lansing, Michigan 48824, USAJ. WrzesińskiInstitute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow, Poland
2004lv
ABI
Аннотация
Gamma rays from neutron-rich nuclei in the vicinity of $Z=20$, $N=28$ have been studied at Gammasphere using deep-inelastic reactions induced by a $330\text{\ensuremath{-}}\mathrm{MeV}$ $^{48}\mathrm{Ca}$ beam on a thick $^{238}\mathrm{U}$ target. The yrast $\ensuremath{\gamma}$-ray cascade of $^{56}\mathrm{Ti}$ was identified for the first time and the location in energy of the ${2}^{+}$, ${4}^{+}$, and ${6}^{+}$ states was determined. The low-spin $^{56}\mathrm{Ti}$ yrast structure does not support the presence of a subshell closure at $N=34$ as suggested on the basis of other data on nuclei in the region as well as shell model calculations with a recently proposed interaction.
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