Evidence for Decreased Pairing Energies in Odd- $N$ Nuclei from Band-Crossing Frequencies

Publisher Website

13 July 1981

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 47 (2) , 75-78
https://doi.org/10.1103/physrevlett.47.75

Abstract

An odd-even neutron-number dependence of the alignment frequency of the first pair of

i_{\frac{13}{2}}

quasineutrons in rare-earth nuclei is established. This effect is explained by a reduction of the neutron pairing-correlation parameter

Δ_{n}

for odd-

N

systems as compared to seniority-zero configurations in even-

N

nuclei.

Keywords

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