Band structure in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ta</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>180</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> studied with transfer reactions

E. Warde; G. J. Costa; D. Magnac; R. Seltz; C. Gerardin; M. Buenerd; Ph. Martin; W. Saathoff; C. A. Wiedner

doi:10.1103/PhysRevC.27.98

Band structure in ${}^{180}{Ta}$ studied with transfer reactions

E. Warde, G. J. Costa, D. Magnac, R. Seltz, C. Gerardin, M. Buenerd, Ph. Martin, W. Saathoff, and C. A. Wiedner

Phys. Rev. C 27, 98 – Published 1 January 1983

Abstract

The differential cross sections of emitted particles have been measured in the reactions ${}^{181}{Ta} (p, d) {}^{180}{Ta}$ at 19 MeV, ${}^{179}{Hf} ({}^{3}{He}, d) {}^{180}{Ta}$ at 36 MeV, and ${}^{179}{Hf} (α, t) {}^{180}{Ta}$ at 62.2 MeV. The energy resolution was 15 to 40 keV depending on the reaction. Differential cross sections were fitted using a distorted wave program and level characteristics of ${}^{180}{Ta}$ were deduced in the framework of the Nilsson model for odd-odd deformed nuclei including Coriolis coupling. Members of rotational bands have been identified up to 1 MeV excitation energy. The short-lived isomer in ${}^{180}{Ta}$ with spin $1^{+}$ was found to be the ground state whereas the long-lived isomer at 82±20 keV excitation energy has spin $9^{-}$ .

NUCLEAR REACTIONS ${}^{181}{Ta} (p, d) {}^{180}{Ta}$ , $E = 19$ MeV; ${}^{179}{Hf} ({}^{3}{He}, d) {}^{180}{Ta}$ , $E = 36$ MeV; ${}^{179}{Hf} (α, t) {}^{180}{Ta}$ , $E = 62.2$ MeV; measured $σ (θ)$ . DWBA and Nilsson model analysis, deduced level characteristics, neutron separation energies of isomeric states.