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Microscopic description of the self-conjugate Xe108 and Te104 α-decay chain

F. Mercier, J. Zhao, R.-D Lasseri, J.-P. Ebran, E. Khan, T. Nikšić, and D. Vretenar
Phys. Rev. C 102, 011301(R) – Published 2 July 2020

Abstract

A microscopic calculation of half-lives for the recently observed Xe108Te104Sn100α-decay chain is performed by using a self-consistent framework based on energy density functionals. The relativistic density functional DD-PC1 and a separable pairing interaction of finite range are used to compute axially symmetric deformation-energy surfaces of Te104 and Xe108 as functions of quadrupole, octupole, and hexadecupole collective coordinates. Dynamic least-action paths are determined that trace the α-particle emission from the equilibrium deformation to the point of scission. The calculated half-lives, 197 ns for Te104 and 50μs for Xe108, are compared with recent experimental values of the half-lives of superallowed α decay of Te104: <18 ns, and Xe108: 5823+106μs.

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  • Received 26 February 2020
  • Accepted 12 June 2020

DOI:https://doi.org/10.1103/PhysRevC.102.011301

©2020 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

F. Mercier1, J. Zhao2, R.-D Lasseri3, J.-P. Ebran4, E. Khan1, T. Nikšić5, and D. Vretenar5

  • 1IJCLab, Université Paris-Saclay, CNRS/IN2P3, 91405 Orsay Cedex, France
  • 2Center for Quantum Computing, Peng Cheng Laboratory, Shenzhen 518055, China
  • 3ESNT, CEA, IRFU, Département de Physique Nucléaire, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
  • 4CEA,DAM,DIF, F-91297 Arpajon, France
  • 5Physics Department, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia

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Issue

Vol. 102, Iss. 1 — July 2020

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