The splitting of the one-body potential in spin-polarized isospin-symmetric nuclear matter

TL;DR

This paper investigates the differences in one-body potentials for spin-polarized nucleons in symmetric nuclear matter using the Dirac-Brueckner-Hartree-Fock approach, highlighting the need for further constraints on this key quantity.

Contribution

It introduces a formal analogy between spin polarization effects and isospin asymmetry, emphasizing the importance of constraining the one-body potential differences.

Findings

Identifies the potential difference as analogous to the Lane potential.

Highlights the need for additional data to constrain the potential.

Provides a theoretical framework for analyzing spin-polarized nuclear matter.

Abstract

Spin-polarized symmetric nuclear matter is studied within the Dirac-Brueckner-Hartree-Fock approach. We pay particular attention to the difference between the one-body potentials of upward and downward polarized nucleons. This is formally analogous to the "Lane potential" for isospin-asymmetric nuclear matter. We point out the necessity for additional information on this fundamentally important quantity and suggest ways to constrain it.