# Dense Baryonic Matter and Strangeness in Neutron Stars

## TL;DR

This paper reviews recent advances in chiral effective field theory applications to dense baryonic matter, focusing on neutron star constraints, hyperon interactions, and the hyperon puzzle, using non-perturbative functional renormalization group methods.

## Contribution

It introduces a non-perturbative extension of chiral effective field theory with functional renormalization group techniques for dense matter analysis.

## Key findings

- Constraints on neutron star matter from observations
- Hyperon-nuclear interactions derived from SU(3)
- Insights into the hyperon puzzle in neutron stars

## Abstract

Recent developments of chiral effective field theory (ChEFT) applications to nuclear and neutron matter are summarized, with special emphasis on a (non-perturbative) extension using functional renormalisation group methods. Topics include: nuclear thermodynamics, extrapolations to dense baryonic matter and constraints from neutron star observables. Hyperon-nuclear interactions derived from SU(3) will be discussed with reference to the "hyperon puzzle" in neutron star matter.