Eur. Phys. J. A (2006) 27: 53-58
https://doi.org/10.1140/epja/i2005-10244-6

Nuclear Structure and Reactions

Low-lying states in ¹⁹⁵Pt described by the particle-rotor model

¹ Institut für Kernphysik der Universität zu Köln, 50937, Köln, Germany
² Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784, Sofia, Bulgaria

^* e-mail: petkov@inrne.bas.bg

Received: 13 December 2005
Accepted: 7 February 2006
Published online: 21 February 2006

Abstract

Particle plus triaxial rotor model calculations have been performed for the negative-parity states in ¹⁹⁵Pt. An overall reasonable description of the level energies below 700 keV and of the corresponding B(E2) and B(M1) transition strengths was obtained. The doublet structure of the levels may be associated with the closeness in energy of two active negative-parity neutron quasi-particles which are positioned near to the Fermi surface for γ ≈ 30^°. The detailed comparison with the data reveals that further theoretical efforts, especially to account for the properties of the core and the particle-core coupling, are required for a more successful description of ¹⁹⁵Pt in a particle plus rotor model.