Effects of tensor forces in neutron drops

Shihang Shen, Haozhao Liang, Jie Meng, Peter Ring, Shuangquan Zhang

Published 2017-09-19Version 1

Neutron drops confined in an external field are studied in the framework of relativistic Brueckner-Hartree-Fock theory using the bare nucleon-nucleon interaction. A strong influence of the tensor forces on the evolution of spin-orbit splittings with neutron number is found. This result provides interesting insight for neutron rich systems and forms an important guide for future microscopic derivations of nuclear energy density functionals.