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Evolution of the mixed-symmetry 2{sub 1,ms}{sup +} quadrupole-phonon excitation from spherical to {gamma}-soft Xe nuclei

Journal Article · · Physical Review. C, Nuclear Physics
; ; ;  [1];  [1];  [1]; ;  [2]; ; ; ;  [3];  [4]
  1. Institut fuer Kernphysik, Technische Universitaet Darmstadt, D-64289 Darmstadt (Germany)
  2. Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicher Str. 77, D-50937 Koeln (Germany)
  3. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  4. Wright Nuclear Structure Laboratory, Yale University, New Heaven, Connecticut 06520 (United States)
Low-lying collective states of {sup 130,132}Xe have been investigated by {gamma}-ray spectroscopy following {sup 12}C(Xe,Xe*){sup 12}C projectile Coulomb excitation. The one-phonon 2{sub 1,ms}{sup +} states have been identified: the 2{sub 4}{sup +} state at 2150 keV with B(M1;2{sub 4}{sup +{yields}}2{sub 1}{sup +})=0.15(4){mu}{sub N}{sup 2} in {sup 130}Xe and the 2{sub 3}{sup +} state at 1985 keV with B(M1;2{sub 3}{sup +{yields}}2{sub 1}{sup +})=0.22(6){mu}{sub N}{sup 2} in {sup 132}Xe. The evolution of the one-phonon 2{sub 1,ms}{sup +} states in the even-even stable xenon isotopic chain from the vibrators near N=82 to the {gamma}-soft nuclei toward midshell is discussed.
OSTI ID:
21419430
Journal Information:
Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English