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Study of 0{sup +} excitations in {sup 158}Gd with the (n,n{sup '}{gamma}) reaction

Journal Article · · Physical Review. C, Nuclear Physics
 [1]; ; ; ; ; ; ; ; ; ;  [1];  [1]
  1. Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)

We have examined {sup 158}Gd with the (n,n{sup '}{gamma}) reaction at neutron energies up to 3.3 MeV to determine the collective character of 0{sup +} excitations revealed in previous {sup 160}Gd(p, t) reaction studies. Moderately large B(E2;0{sup +}{yields}2{sub 1}{sup +}) values are observed for transitions from some of the 0{sup +} states lying above the pairing gap. From its excitation energy and decay properties, the 0{sup +} excitation at 2276.7 keV is suggested as exhibiting two-phonon {gamma}{gamma} strength. The high density of levels at similar excitation energies makes the identification of the other two-phonon states improbable.

OSTI ID:
21064346
Journal Information:
Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
Country of Publication:
United States
Language:
English

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