ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract An in-beam study of74Br has been carried out using γ-ray spectroscopy in connection with the reactions (3He,p2in) and (d,2n) on74Se targets. Separate level schemes on top of the two β-decaying isomers of74Br are proposed. Two cascades connecting highspin states are assigned to populate theI π=4(+) isomer. In this level scheme, the excited states at 72.1, 188.3 and 472.0 keV are found to have half-lives of 13.3, 0.7 and 0.7 ns, respectively. The low-spin isomer of74Br is tentatively assigned asI π=(0−). This state is populated by two other cascades. For the low-spin levels two-particle configurations of proton and neutron Nilsson orbitals are proposed. The high-spin states are tentatively interpreted as arising from the configurations (πg 9/2,νg 9/2) and (πg 3/2,νg 9/2). As a by-product, a cascade of four transitions has been observed during the3He bombardment of74Se and tentatively assigned to negative-parity states in75Kr.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01413756
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