Enhanced Tensor-Force Contribution in Collision Dynamics

TL;DR

This paper demonstrates that tensor forces play a more significant role in heavy-ion collision dynamics than previously thought, especially as the system's mass increases, based on time-dependent density functional calculations.

Contribution

It reveals the enhanced importance of tensor-force contributions in heavy-ion reactions, highlighting their increasing impact with system mass.

Findings

Tensor force effects grow with system mass.

Tensor forces significantly influence collision dynamics.

Time-dependent density functional calculations support these findings.

Abstract

The tensor and spin-orbit forces contribute essentially to the formation of the spin mean field, and give rise to the same dynamical effect, namely spin polarization. In this paper, based on time-dependent density functional calculations, we show that the tensor force, which usually acts like a small correction to the spin-orbit force, becomes more important in heavy-ion reactions and the effect increases with the mass of the system.