Nuclear response for the Skyrme effective interaction with zero range tensor terms

TL;DR

This paper investigates how zero-range tensor terms in the Skyrme effective interaction influence nuclear response functions within the RPA framework, highlighting significant effects especially in vector channels.

Contribution

It provides explicit formulas for nuclear response functions with tensor terms in symmetric nuclear matter, emphasizing their quantitative importance.

Findings

Tensor terms significantly affect response functions in vector channels

Explicit formulas derived for symmetric nuclear matter

Tensor effects are quantitatively important in certain channels

Abstract

The effects of a zero-range tensor component of the effective interaction on nuclear response functions are determined in the so-called RPA approach. Explicit formula in the case of symmetric homogeneous isotropic nuclear matter are given for each spin-isospin excitation channel. It is shown for a typical interaction with tensor couplings that the effects are quantitatively important, mainly in vector channels.