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Impact of variational space on M1 transitions between first and second quadrupole excitations in Te132,134,136

A. P. Severyukhin, N. N. Arsenyev, N. Pietralla, and V. Werner
Phys. Rev. C 90, 011306(R) – Published 28 July 2014

Abstract

M1 transitions between low-energy quadrupole excitations of the valence shell are often used as the signature for states of proton-neutron mixed-symmetry character. Starting from the Skyrme interaction f together with the volume pairing interaction, we study the properties of the 21,2+ excitations of Te132,134,136. The coupling between one- and two-phonon terms in the wave functions of excited states is taken into account. Our calculations are performed within the finite-rank separable approximation, which enables one to perform quasiparticle random phase approximation calculations in very large two-quasiparticle configurational spaces. Using the same set of parameters we describe available experimental data and give the prediction for Te136, B(M1;22+21+)=0.51μN2 in comparison to 0.30μN2 in the case of Te132.

  • Figure
  • Figure
  • Received 3 April 2014
  • Revised 4 July 2014

DOI:https://doi.org/10.1103/PhysRevC.90.011306

©2014 American Physical Society

Authors & Affiliations

A. P. Severyukhin1,*, N. N. Arsenyev1, N. Pietralla2, and V. Werner2

  • 1Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia
  • 2Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany

  • *sever@theor.jinr.ru

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Vol. 90, Iss. 1 — July 2014

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