Precise Mass Calculations for Atomic Nuclei of Isospin T-z=51/2, 26, 53/2, 55/2, 28, and 57/2 with Restored Spin-Isospin SU(4) Symmetry

摘要

Via simulating the contribution of spin-orbit interaction to nuclear masses by orthogonal Chebyshev polynomials, the mass excesses are calculated for a group of atomic nuclei characterized by the isospins of T-z = 51/2, 26, 53/2, 55/2, 28, and 57/2 and by the presence of restored Wigner's spin-isospin SU(4) symmetry. The root-mean-square deviation of the results of these calculations from their experimental counterparts is sigma = 140 keV. The potential of the proposed method is discussed.