Second backbend in the mass A180 region

A. Ansari
Phys. Rev. C 59, 2537 – Published 1 May 1999
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Abstract

Within the framework of self-consistent cranked Hartree-Fock-Bogoliubov theory (one dimensional) we predict a second backbend in the yrast line of 182Os at I40ħ, which is even sharper than the first one observed experimentally at I14ħ. Around such a high spin the structure becomes multiquasiparticle type, but the main source of this strong discontinuity is a sudden large alignment of i13/2 proton orbitals along the rotation axis followed soon by the alignment of j15/2 neutron orbitals. This leads to drastic structural changes at such high spins. When experimentally confirmed, this will be observed for the first time in this mass region, and will be at the highest spin so far.

  • Received 18 September 1998

DOI:https://doi.org/10.1103/PhysRevC.59.2537

©1999 American Physical Society

Authors & Affiliations

A. Ansari

  • Institute of Physics, College of Arts and Sciences, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
  • Institute of Physics, Bhubaneswar - 751 005, India

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Vol. 59, Iss. 5 — May 1999

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