학술논문
Octupole correlations in the N = Z + 2 = 56 110Xe nucleus
Document Type
article
Author
A. Illana; R.M. Pérez-Vidal; D. Stramaccioni; J.J. Valiente-Dobón; T.R. Rodriguez; L.M. Robledo; A. Poves; K. Auranen; O. Beliuskina; C. Delafosse; T. Eronen; Z. Ge; S. Geldhof; W. Gins; T. Grahn; P.T. Greenlees; H. Joukainen; R. Julin; H. Jutila; A. Kankainen; M. Leino; J. Louko; M. Luoma; D. Nesterenko; J. Ojala; J. Pakarinen; P. Rahkila; P. Ruotsalainen; M. Sandzelius; J. Sarén; J. Uusitalo; G.L. Zimba
Source
Physics Letters B, Vol 848, Iss , Pp 138371- (2024)
Subject
Language
English
ISSN
0370-2693
Abstract
This letter reports on the first observation of an octupole band in the neutron-deficient (N=Z+2) nucleus 110Xe. The 110Xe nuclei were produced via the 54Fe(58Ni,2n) fusion-evaporation reaction. The emitted γ rays were detected using the jurogam 3 γ-ray spectrometer, while the fusion-evaporation residues were separated with the MARA separator at the Accelerator Laboratory of the University of Jyväskylä, Finland. The experimental observation of the low-lying 3− and 5− states and inter-band E1 transitions between the ground-state band and the octupole band proves the importance of octupole correlations in this region. These new experimental data combined with theoretical calculations using the symmetry-conserving configuration-mixing method, based on a Gogny energy density functional, have been interpreted as an evidence of enhanced octupole correlations in neutron-deficient xenon isotopes.