High-spin study of neutron-deficient Xe-114

Citation
Es. Paul et al., High-spin study of neutron-deficient Xe-114, NUCL PHYS A, 673(1-4), 2000, pp. 31-44
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
0375-9474 → ACNP
Volume
673
Issue
1-4
Year of publication
2000
Pages
31 - 44
Database
ISI
SICI code
0375-9474(20000619)673:1-4<31:HSONX>2.0.ZU;2-V
Abstract
High-spin states have been populated in Xe-114(54) via the Ni-58(Ni-58, 2p) reaction at 210 MeV, using the JUROSPHERE gamma-ray spectrometer to record gamma-ray coincidences. The known level scheme has been significantly exte nded and includes two positive-parity and three negative-parity structures. At the highest spins, one of the negative-parity bands becomes yrast and s hows the characteristics of a smoothly terminating band, Quadrupole moments for two of the bands at high spin have been estimated through a Doppler-br oadened lineshape analysis; the terminating band has a reduced quadrupole m oment implying that it is not far from full termination into a noncollectiv e oblate state. Extracted B(E1) strengths are discussed in terms of possibl e octupole collectivity (C) 2000 Elsevier Science B.V. All rights reserved.