<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi>Ni</mml:mi><mml:mprescripts/><mml:none/><mml:mn>58</mml:mn></mml:mmultiscripts></mml:math>: An Unpaired Band Crossing at New Heights of Angular Momentum for Rotating Nuclei
D. RudolphDepartment of Physics, Lund University, S-22100 Lund, SwedenB. G. CarlssonI. RagnarssonS. ÅbergC. AndreoiuDepartment of Physics, Lund University, S-22100 Lund, SwedenM. A. BentleySchool of Chemistry and Physics, Keele University, Keele, Staffordshire, ST5 5BG, United KingdomM. P. CarpenterPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAR. J. CharityChemistry Department, Washington University, St. Louis, Missouri 63130, USAR. M. ClarkNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USAM. CromazNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USAJ. EkmanDepartment of Physics, Lund University, S-22100 Lund, SwedenC. FahlanderDepartment of Physics, Lund University, S-22100 Lund, SwedenP. FallonNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USAE. IdeguchiChemistry Department, Washington University, St. Louis, Missouri 63130, USAA. O. MacchiavelliNuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USAM. N. MinevaDepartment of Physics, Lund University, S-22100 Lund, SwedenW. ReviolChemistry Department, Washington University, St. Louis, Missouri 63130, USAD. G. SarantitesChemistry Department, Washington University, St. Louis, Missouri 63130, USAD. SeweryniakPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USASpencer J. WilliamsSchool of Chemistry and Physics, Keele University, Keele, Staffordshire, ST5 5BG, United Kingdom
2006lv
ABI
Аннотация
High-spin states in 58Ni have been investigated by means of the fusion-evaporation reaction 28Si(32S, 2p)58Ni at 130 MeV beam energy. Discrete-energy levels are observed in 58Ni at record-breaking 42 MeV excitation energy and angular momenta in excess of 30h. The states form regular rotational bands with unprecedented high rotational frequencies. A comparison with configuration dependent cranked Nilsson-Strutinsky calculations reveals an exceptional two-band crossing scenario, the interaction strength of which is strongly shape dependent.
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