Interband Transitions between Superdeformed Bands in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>87</mn></mrow></msup></mrow></math></span>Nb: Evidence for a Superintruder Orbital

D. R. LaFosse; M. Devlin; M. Korolija; F. Lerma; D. G. Sarantites; Y. A. Akovali; C. Baktash; C. J. Gross; D. W. Stracener; J. Döring; G. D. Johns; S. L. Tabor; F. E. Durham; I. Y. Lee; A. O. Macchiavelli; W. Rathbun

doi:10.1103/PhysRevLett.78.614

Interband Transitions between Superdeformed Bands in $^{87}$ Nb: Evidence for a Superintruder Orbital

D. R. LaFosse, M. Devlin, M. Korolija, F. Lerma, D. G. Sarantites, Y. A. Akovali, C. Baktash, C. J. Gross, D. W. Stracener, J. Döring, G. D. Johns, S. L. Tabor, F. E. Durham, I. Y. Lee, A. O. Macchiavelli, and W. Rathbun

Phys. Rev. Lett. 78, 614 – Published 27 January 1997

Abstract

Four superdeformed bands have been observed in $^{87} Nb$ . Transition quadrupole moment measurements on three of the bands confirm superdeformed shapes. Two of the bands were observed to mutually interact, and cross transitions between them have been observed. This is the first time such behavior has been observed in mass 80 superdeformed bands. Once this interaction is accounted for, a second crossing appears in one of the bands. This crossing is interpreted as evidence for the occupation of the $i_{13 / 2}$ superintruder orbital, making $^{87} Nb$ the lightest nucleus by far in which the shape-driving properties of this orbital can be studied.

Received 9 October 1996

DOI:https://doi.org/10.1103/PhysRevLett.78.614

Authors & Affiliations

D. R. LaFosse¹, M. Devlin¹, M. Korolija¹, F. Lerma¹, D. G. Sarantites¹, Y. A. Akovali², C. Baktash², C. J. Gross², D. W. Stracener², J. Döring³, G. D. Johns³, S. L. Tabor³, F. E. Durham⁴, I. Y. Lee⁵, A. O. Macchiavelli⁵, and W. Rathbun⁵

¹Chemistry Department, Washington University, St. Louis, Missouri 63130
²Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
³Department of Physics, Florida State University, Tallahassee, Florida 32306
⁴Department of Physics, Tulane University, New Orleans, Louisiana 70118
⁵Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720