The 154Eu(t, p) reaction: Some new systematics in the N = 90 spherical-deformed transition region

R. G. Lanier, R. K. Sheline, G. L. Struble, L. G. Mann, J. A. Cizewski

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10 Scopus citations

Abstract

A radioactive target of 154Eu(8.3y) has been used to study the 154Eu(t, p)156Eu reaction at an incident energy of 17 MeV. The bandhead and one rotational state of the {;π 5 2[413]; ν 11 2[505]}K = 3- configuration have been identified in 156Eu. The excitation energy of the 3- bandhead is determined to be 448 ± 15 keV. The angular distribution of the first excited rotational state is anamolous and may indicate evidence for a strong two-step component in the reaction mechanism. The energy systematics of the Eu-Sm transition region are also investigated. We find that the systematics of h {combining short stroke overlay}2 2I suggest that at N = 87 the 150Eu {π 5 2[413]; ν 11 2[505]}K = 3- excited configurations has a significantly more stable deformed structure than the corresponding 11 2[505] one-quasiparticle structure in 149Sm.

Original languageEnglish (US)
Pages (from-to)236-246
Number of pages11
JournalNuclear Physics, Section A
Volume413
Issue number2
DOIs
StatePublished - Jan 30 1984
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Nuclear reactions
  • Nuclear structure

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