Mass relations of mirror nuclei
Y. Y. Zong, C. Ma, Y. M. Zhao, A. Arima
Abstract
In this paper we revisit mass relations of mirror nuclei by considering the odd-even feature in Coulomb energy. A substantial improvement and competitive accuracy of mass relations is achieved, with root-mean-squared deviations (RMSD) of only 93 keV; for the first time one is able to construct simple mass formulas for mirror nuclei with the RMSD below 100 keV in light- and medium-mass regions (mass number $A=20$--90) by using only four parameters. As a by-product we tabulate our predictions of masses excesses unaccessible experimentally in the Supplemental Material of this paper.
Topics & Concepts
PhysicsMirror nucleiMass numberCoulombNuclear physicsAtomic physicsNucleonElectronNeutronNuclear physics research studiesAstronomical and nuclear sciencesAtomic and Molecular Physics