Toward an Effective Field Theory for Cold Compressed Baryonic Matter

TL;DR

This paper explores an effective field theory framework based on hidden local symmetry and dual gravity concepts to understand cold, dense baryonic matter relevant to neutron stars and high-density QCD phases.

Contribution

It introduces a novel approach using hidden local symmetry and dual gravity to model dense baryonic matter beyond traditional methods.

Findings

Framework connects effective field theory with hidden local symmetry.

Addresses chiral phase transition and quark matter at high density.

Proposes a conceptual approach for future experimental exploration.

Abstract

This is an extended version of the note taken by the first author (W.-G.P.) on a lecture given by the second author (M.R.) as a first part of the series on "Hadronic Matter Under Extreme Conditions," the principal theme of the WCU-Hanyang Program. It covers the attempts to go in a framework anchored on effective field theory of QCD from zero density to the nuclear matter density and slightly beyond, with the ultimate goal of arriving at the density relevant to compact stars, including chiral phase transition and quark matter. The focus is on the conceptual aspects rather than detailed "fitting" of the data on the kinds of physics that are being addressed to in radioactive-ion-beam machines in operation as well as in project (such as `KoRIA' in Korea) and will be explored at such forthcoming accelerators as FAIR/GSI. The approach presented here is basically different from the standard ones found in the literature in that the notion of hidden local symmetry -- which underlies the chiral symmetry of the strong interactions -- and its generalization to dual gravity description involving infinite tower of hidden gauge fields are closely relied on.