High-spin study of neutron-deficient [formula omitted]Xe

High-spin states have been populated in 114 54 Xe via the 58 Ni( 58 Ni, 2p) reaction at 210 MeV, using the Jurosphere γ-ray spectrometer to record γ-ray coincidences. The known level scheme has been significantly extended and includes two positive-parity and three negative-parity structures. At the...

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Veröffentlicht in:Nuclear physics. A 2000, Vol.673 (1), p.31-44
Hauptverfasser: Paul, E.S., Scraggs, H.C., Boston, A.J., Dorvaux, O., Greenlees, P.T., Helariutta, K., Jones, P., Julin, R., Juutinen, S., Kankaanpää, H., Kettunen, H., Muikku, M., Nieminen, P., Rahkila, P., Stezowski, O.
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container_end_page 44
container_issue 1
container_start_page 31
container_title Nuclear physics. A
container_volume 673
creator Paul, E.S.
Scraggs, H.C.
Boston, A.J.
Dorvaux, O.
Greenlees, P.T.
Helariutta, K.
Jones, P.
Julin, R.
Juutinen, S.
Kankaanpää, H.
Kettunen, H.
Muikku, M.
Nieminen, P.
Rahkila, P.
Stezowski, O.
description High-spin states have been populated in 114 54 Xe via the 58 Ni( 58 Ni, 2p) reaction at 210 MeV, using the Jurosphere γ-ray spectrometer to record γ-ray coincidences. The known level scheme has been significantly extended and includes two positive-parity and three negative-parity structures. At the highest spins, one of the negative-parity bands becomes yrast and shows the characteristics of a smoothly terminating band. Quadrupole moments for two of the bands at high spin have been estimated through a Doppler-broadened lineshape analysis; the terminating band has a reduced quadrupole moment implying that it is not far from full termination into a noncollective oblate state. Extracted B( E1) strengths are discussed in terms of possible octupole collectivity.
doi_str_mv 10.1016/S0375-9474(00)00093-2
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source Elsevier ScienceDirect Journals Complete - AutoHoldings
subjects Deduced [formula omitted]
Enriched targets
Jurosphere spectrometer of escape-suppressed HPGe detectors
Measured [formula omitted]
Nuclear Experiment
Nuclear reactions [formula omitted]Ni( [formula omitted]Ni, 2p), [formula omitted] MeV
Physics
title High-spin study of neutron-deficient [formula omitted]Xe
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