Evidence of unique-parity band structure in neutron-rich odd-<i>A</i> Ru isotopes

K. Butler-Moore; R. Aryaeinejad; J. D. Cole; Y. Dardenne; R. G. Greenwood; J. H. Hamilton; A. V. Ramayya; W.-C. Ma; B. R. S. Babu; J. O. Rasmussen; M. A. Stoyer; S. Y. Chu; K. E. Gregorich; M. Mohar; S. Asztalus; S. G. Prussin; K. J. Moody; R. W. Lougheed; J. F. Wild

doi:10.1103/PhysRevC.52.1339

Evidence of unique-parity band structure in neutron-rich odd-A Ru isotopes

K. Butler-Moore, R. Aryaeinejad, J. D. Cole, Y. Dardenne, R. G. Greenwood, J. H. Hamilton, A. V. Ramayya, W.-C. Ma, B. R. S. Babu, J. O. Rasmussen, M. A. Stoyer, S. Y. Chu, K. E. Gregorich, M. Mohar, S. Asztalus, S. G. Prussin, K. J. Moody, R. W. Lougheed, and J. F. Wild

Phys. Rev. C 52, 1339 – Published 1 September 1995

Abstract

With prompt γ-ray and x-ray spectroscopy on fission fragments, several new transitions in ${}^{109, 111}{Ru}$ have been identified. Angular correlation analysis of several of the new transitions yield evidence of a stretched E2 band structure. Qualitative Nilsson model arguments, systematics, and triaxial rotor+particle calculations support our hypothesis that the observed band is built on the unique parity ν $h_{11 / 2}$ orbital.