High-spin study of neutron-deficient $^{114}$Xe

6533b82efe1ef96bd1294603

RESEARCH PRODUCT

High-spin study of neutron-deficient $^{114}$Xe

E. S. Paul O. Stezowski Panu Rahkila K. Helariutta R. Julin H. C. Scraggs Heikki Kettunen H. Kankaanpää Paul Greenlees O. Dorvaux Paivi Nieminen Peter M. Jones S. Juutinen M. Muikku A. J. Boston

subject

Nuclear reaction Physics Nuclear and High Energy Physics Spins Spectrometer [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex]Yrast Quadrupole Oblate spheroid Neutron Atomic physics [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Spin-½

description

Abstract 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( E 1) strengths are discussed in terms of possible octupole collectivity.

year	journal	country	edition	language
2000-06-19

http://hal.in2p3.fr/in2p3-00011107

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