Rotational structures in [Formula Presented] and alignments in [Formula Presented] nuclei

D. J. Hartley, L. L. Riedinger, H. Q. Jin, W. Reviol, B. H. Smith, A. Galindo-Uribarri, D. G. Sarantites, D. R. LaFosse, J. N. Wilson, S. M. Mullins

Research output: Contribution to journalArticlepeer-review

Abstract

High-spin states in [Formula Presented] have been populated using the [Formula Presented] reaction at a beam energy of 180 MeV. Four of the five previously known rotational structures have been extended to higher spin [Formula Presented] and excitation energy. In addition, three new sequences were observed, two of which form a strongly-coupled band. This latter structure is likely based on the [404]9/2 proton orbital, which is associated with strong deformation driving behavior in nearby Pr and Pm nuclei. A systematic examination of the crossing frequencies based on the rotational alignment of [Formula Presented] protons and [Formula Presented] neutrons is also presented. The dependence of the crossing frequencies on deformation and Fermi surface can be inferred based on experimental observation and evidence for reduced proton and possibly neutron pairing fields is presented.

Original languageEnglish
Pages (from-to)11
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume60
Issue number1
DOIs
StatePublished - 1999
Externally publishedYes

Fingerprint

Dive into the research topics of 'Rotational structures in [Formula Presented] and alignments in [Formula Presented] nuclei'. Together they form a unique fingerprint.

Cite this