Abstract
Abstract
In this study, we investigate the patterns exhibited by integrated neutron-proton interactions (denoted as
) that exhibit systematic differences among particle-particle, hole-hole, hole-particle, and particle-hole cases. A simple formula of
is proposed to be in approximate linearity with
. This formula yields regular patterns of
that are highly consistent with those previously extracted according to binding energies. The observed ordering of
, i.e.,
of the particle-particle case is the largest,
of the hole-hole case is in-between, and
of the particle-hole and hole-particle cases is the smallest, is explained in terms of the dominant part of
originating from symmetry energy and refinement involving the shell correction in the mass formulas.
Funder
National Natural Science Foundation of China
MOE Key Lab for Particle Physics, Astrophysics and Cosmology
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics