More effective theory of nuclear forces

TL;DR

This paper discusses the importance of the renormalisation group in analyzing nuclear forces, highlighting how it influences power counting and promotes certain terms beyond naive expectations.

Contribution

It provides a summary of analyses demonstrating the renormalisation group's role in refining effective theories of nuclear interactions.

Findings

Certain terms in nuclear force theories should be significantly promoted.

Renormalisation group analysis clarifies scale dependence in nuclear forces.

Results impact the formulation of effective theories for nuclear physics.

Abstract

I outline why the renormalisation group is needed to analyse the scale dependence and hence determine the power counting for effective theories of strongly interacting systems. I summarise the results of several such analyses for two- and three-body forces in nuclear physics. These show that a number of terms should be significantly promoted relative to naive dimensional analysis.