High spin states in Eu141

N. Xu, C. W. Beausang, J. R. Hughes, Y. Liang, R. Ma, E. S. Paul, W. F. Piel, S. Shi, D. B. Fossan

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

The odd-proton Eu141 nucleus is studied with the Cd110(35Cl,2p2n) reaction populating states in seven distinct bands. For the yrast band, high spin states are followed up to I=43/2- and a band crossing, due to the alignment of the second and third h11/2 protons, is observed at a rotational frequency Latin small letter h with strokec=0.37 MeV. For the positive-parity bands, only the three-quasiparticle configuration, namely, g7/2-[h11/2]2, is observed up to high spins. In addition, two I=1 bands with no E2 crossovers are found in this nucleus. The cause of the relatively strong M1 transition bands can be explained by a drastic shape change due to the alignment of an h11/2 neutron pair. A systematic comparison amongst the N=78 isotones, Pr137, Pm139, and Eu141, is made.

Original languageEnglish (US)
Pages (from-to)2189-2199
Number of pages11
JournalPhysical Review C
Volume43
Issue number5
DOIs
StatePublished - Jan 1 1991

    Fingerprint

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Xu, N., Beausang, C. W., Hughes, J. R., Liang, Y., Ma, R., Paul, E. S., Piel, W. F., Shi, S., & Fossan, D. B. (1991). High spin states in Eu141. Physical Review C, 43(5), 2189-2199. https://doi.org/10.1103/PhysRevC.43.2189