Pair correlations in the neutrinoless double-β decay candidate Te130

T. Bloxham, B. P. Kay, J. P. Schiffer, J. A. Clark, C. M. Deibel, S. J. Freeman, S. J. Freedman, A. M. Howard, S. A. McAllister, P. D. Parker, D. K. Sharp, and J. S. Thomas
Phys. Rev. C 82, 027308 – Published 16 August 2010

Abstract

Pair correlations in the ground state of Te130 have been investigated using pair-transfer experiments to explore the validity of approximations in calculating the matrix element for neutrinoless double-β decay. This nucleus is a candidate for the observation of such decay, and a good understanding of its structure is crucial for eventual calculations of the neutrino mass, should such a decay indeed be observed. For proton-pair adding, strong transitions to excited 0+ states had been observed in the Te isotopes by Alford et al. [Nucl. Phys. A 323, 339 (1979)], indicating a breaking of the BCS approximation for protons in the ground state. We measured the neutron-pair removing (p,t) reaction on Te130 and found no indication of a corresponding splitting of the BCS nature of the ground state for neutrons.

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  • Received 7 June 2010

DOI:https://doi.org/10.1103/PhysRevC.82.027308

©2010 American Physical Society

Authors & Affiliations

T. Bloxham1,*, B. P. Kay2, J. P. Schiffer2, J. A. Clark2, C. M. Deibel2,3, S. J. Freeman4, S. J. Freedman1, A. M. Howard4, S. A. McAllister4, P. D. Parker5, D. K. Sharp4, and J. S. Thomas4

  • 1Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 2Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 3Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48825, USA
  • 4Schuster Laboratory, University of Manchester, Manchester, M13 9PL, United Kingdom
  • 5A. W. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520, USA

  • *tbloxham@lbl.gov

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Vol. 82, Iss. 2 — August 2010

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