Shears band with a large dynamic moment of inertia in Bi-197

Shears band with a large dynamic moment of inertia in Bi-197

High-spin states in Bi-197 were studied with the AFRODITE gamma-ray array at iThemba LABS using the Ta-181(Ne-22, 6n) reaction at a beam energy of 125 MeV. A new shears band was found and linked to the low-lying states in Bi-197. Its dynamic moment of inertia, F (2), is considerably larger than the...

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Veröffentlicht in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2005-07, Vol.25 (1), p.49
Hauptverfasser: Mabala, G. K., Gueorguieva, E., Sharpey-Schafer, J. F., Benatar, M., Fearick, R. W., Korir, K. I., Lawrie, J. J., Mullins, S. M., Murray, S. H. T., Ncapayi, N. J., Newman, R. T., Roux, D. G., Smit, F. D., Wyss, Ramon
Format: Artikel
Sprache:eng
Schlagworte:
bismuth nuclei
competition
excitations
Fysik
magnetic dipole bands
mechanism
NATURAL SCIENCES
NATURVETENSKAP
pb-193
Physics
rotation
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Zusammenfassung:High-spin states in Bi-197 were studied with the AFRODITE gamma-ray array at iThemba LABS using the Ta-181(Ne-22, 6n) reaction at a beam energy of 125 MeV. A new shears band was found and linked to the low-lying states in Bi-197. Its dynamic moment of inertia, F (2), is considerably larger than the ((2)) of the shears bands in the neighbouring Pb isotopes. This is probably a result of the involvement of an additional high-K h(9/2) proton orbital.
ISSN:1434-601X
1434-6001
DOI:10.1140/epja/i2005-10075-5