Pairing properties of the double-{\beta} emitter 116Cd
Abstract
The pairing properties of the neutrinoless double- decay candidate Cd have been investigated. Measurements of the two-neutron removal reactions on isotopes of Cd have been made in order to identify 0 strength in the residual nuclei up to 3 MeV. No significant strength has been found in excited states indicating that the Bardeen-Cooper-Schrieffer (BCS) approximation is a reasonable basis to describe the neutrons in the ground state. This approximation avoids complications in calculations of double- decay matrix elements that use the quasiparticle random-phase approximation (QRPA) techniques. However this is not the case for the protons, where pair vibrations are prevalent and the BCS approximation is no longer valid, complicating the use of traditional QRPA techniques for this system as a whole.
Keywords
Cite
@article{arxiv.1910.12093,
title = {Pairing properties of the double-{\beta} emitter 116Cd},
author = {D. K. Sharp and S. J. Freeman and B. D. Cropper and P. J. Davies and T. Faestermann and T. M. Hatfield and R. Hertenberger and S. J. F. Hughes and P. T. MacGregor and H. -F. Wirth},
journal= {arXiv preprint arXiv:1910.12093},
year = {2019}
}
Comments
5 pages, 3 figures, spreadsheet of supplemental material