Lifetime Measurements in Neutron-Rich Xe Isotopes — Evolution of Quadrupole Collectivity Beyond 132Sn
Author(s) -
S. Ilieva,
S. Bönig,
A.-L. Hartig,
C. Henrich,
A. Ignatov,
Th. Kröll,
M. Thürauf,
J. Jolie,
J.-M. Régis,
N. Saed-Samii,
Aurélien Blanc,
G. de France,
M. Jentschel,
U. Köster,
P. Mutti,
G. S. Simpson,
T. Söldner,
W. Urban,
N. Mărginean,
C. A. Ur,
H. Mach,
L. M. Fraile,
V. Paziy,
P. H. Regan,
A. M. Bruce,
S. Lalkovski,
W. Korten
Publication year - 2015
Publication title -
proceedings of the conference on advances in radioactive isotope science (aris2014)
Language(s) - English
Resource type - Conference proceedings
DOI - 10.7566/jpscp.6.020010
Subject(s) - isotope , quadrupole , fission , neutron , physics , nuclear physics , excited state , atomic physics , neutron number , gamma spectroscopy , picosecond , spectroscopy , neutron temperature , neutron cross section , optics , laser , quantum mechanics
EXILL&FATIMA and IS411 collaborationsInternational audiencePicosecond lifetimes of excited states in neutron-rich Xe isotopes were measured at the Institut Laue-Langevin via $\gamma$-ray spectroscopy of fission fragments from neutron-induced fission of 235U and 241Putargets. The data collected with the recently installed fast timing array FATIMA in combination withthe EXOGAM Ge array were analysed using the new generalized centroid difference method. Ouraim is to study the quadrupole and octupole collectivity, arising in the mass region beyond the doublymagic 132Sn, by means of transition probabilities. These can be calculated from the directly measuredlifetimes
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