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Chiral-scale effective field theory for dense and thermal systems

Yong-Liang Ma

Abstract

In this contribution, I will present some properties of nuclear matter (NM) by using the chiral-scale effective field theory that is anchored on the chiral, scale and hidden local flavor symmetries of QCD. We show that the sound velocity (SV) of the compact star matter can saturate the conformal limit, the SV exhibits a peak configuration in the intermediate density. To extend the chiral-scale effective field theory to both dense and tnermal systems, we setup a chiral-scale density counting (CSDC) rule and explore the contributions up to $\mathcal{O}(k_c^{12})$.

Chiral-scale effective field theory for dense and thermal systems

Abstract

In this contribution, I will present some properties of nuclear matter (NM) by using the chiral-scale effective field theory that is anchored on the chiral, scale and hidden local flavor symmetries of QCD. We show that the sound velocity (SV) of the compact star matter can saturate the conformal limit, the SV exhibits a peak configuration in the intermediate density. To extend the chiral-scale effective field theory to both dense and tnermal systems, we setup a chiral-scale density counting (CSDC) rule and explore the contributions up to .

Paper Structure

This paper contains 6 sections, 3 equations, 2 figures, 1 table.

Table of Contents

  1. Introduction
  2. Chiral-scale effective field theory
  3. The pseudoconformal structure
  4. Peak of sound velocity
  5. Chiral-scale density counting rule
  6. Summary and perspective

Figures (2)

  • Figure 1: Sound velocity (left panel) and TEMT (right panel) vs density for symmetric matter ($\alpha=0$) and neutron matter ($\alpha=1$).
  • Figure 2: Sound velocity (left panel) and VEV of sigma (right panel) vs density for from chiral scale EFT (bsHLS-H and bsHLS-L) and Walecka-type models.