Excitations in doubly-magic superdeformed <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pb</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>194</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

J. R. Hughes; J. A. Becker; M. J. Brinkman; L. P. Farris; E. A. Henry; R. W. Hoff; M. A. Stoyer; B. Cederwall; M. A. Deleplanque; R. M. Diamond; P. Fallon; I. Y. Lee; A. O. Macchiavelli; F. S. Stephens; J. A. Cizewski; L. A. Bernstein; W. Younes; H.-Q. Jin; J. E. Draper; C. Duyar; E. Rubel; W. H. Kelly; D. T. Vo

doi:10.1103/PhysRevC.50.R1265

Rapid Communication

Excitations in doubly-magic superdeformed ${}^{194}{Pb}$

J. R. Hughes, J. A. Becker, M. J. Brinkman, L. P. Farris, E. A. Henry, R. W. Hoff, M. A. Stoyer, B. Cederwall, M. A. Deleplanque, R. M. Diamond, P. Fallon, I. Y. Lee, A. O. Macchiavelli, F. S. Stephens, J. A. Cizewski, L. A. Bernstein, W. Younes, H.-Q. Jin, J. E. Draper, C. Duyar, E. Rubel, W. H. Kelly, and D. T. Vo

Phys. Rev. C 50, R1265(R) – Published 1 September 1994

Abstract

A new superdeformed band with an intensity ∼5% relative to the yrast superdeformed band has been observed in ${}^{194}{Pb}$ . Evidence for a second new band corresponding to the signature partner is also presented. These bands were observed with gammasphere early implementation via the ${}^{174}{Yb}$ $(^{25}$ Mg, 5n) reaction at a beam energy of 130 MeV. The rotational characteristics of the new bands suggest an interpretation involving particle-hole excitations in the doubly-magic ${}^{194}{Pb}$ superdeformed core. The results are compared to neighboring nuclei and recent theoretical calculations, and possible configurations are suggested.