Decay of Tm147 and the role of triaxiality studied with a nonadiabatic quasiparticle approach

Swati Modi, M. Patial, P. Arumugam, L. S. Ferreira, and E. Maglione
Phys. Rev. C 96, 064308 – Published 6 December 2017

Abstract

We study the structure and decay properties of triaxially deformed odd-A proton emitter Tm147,147m with the modified particle-rotor model, which utilizes the microscopic nonadiabatic quasiparticle approach. In this approach the core spectrum is coupled with the particle states and hence the rotor properties are carried forward to the odd-A system. We demonstrate the merits of this approach by explaining the measured rotational bands in the triaxial proton emitters Ho141 and Tm145,147. With our calculated spectra and half-lives for the proton emission, we confirm the ground state of Tm147 to be 11/2 and predict the positive parity isomeric state to be 5/2+.

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  • Received 12 September 2017

DOI:https://doi.org/10.1103/PhysRevC.96.064308

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Swati Modi, M. Patial*, and P. Arumugam

  • Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, India

L. S. Ferreira

  • Centro de Física e Engenharia de Materiais Avançados CeFEMA, and Departmento de Física, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, P1049-001 Lisbon, Portugal

E. Maglione

  • Dipartimento di Fisica e Astronomia “G. Galilei”, and Istituto Nazionale di Fisica Nucleare, Via Marzolo 8, I-35131 Padova, Italy

  • *Present address: Department of Physics, Worcester Polytechnic Institute, Worcester, MA 01609.
  • p.arumugam@gmail.com

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Issue

Vol. 96, Iss. 6 — December 2017

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