# Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment

## TL;DR

This paper demonstrates how a renormalization-group consistent approach effectively eliminates artifacts in the NJL model for color-superconducting quark matter, providing analytic solutions and improved phase diagram predictions.

## Contribution

It introduces two RG-consistent schemes for the NJL model and compares their results with conventional regularization methods, advancing the modeling of quark matter phases.

## Key findings

- RG-consistent schemes remove artifacts in NJL model
- Analytic solutions for diquark gap and phase boundary
- Improved predictions for phase diagram and speed of sound

## Abstract

We summarize how a renormalization-group (RG)-consistent treatment removes well-known artifacts in NJL-model descriptions of color-superconducting quark matter. We introduce two RG-consistent schemes, "minimal" and "massless", and present analytic solutions for the diquark gap at $T=0$ and for the phase boundary $T_c(\mu)$ in symmetric massless matter, representing the high-density limit of the model. We compare the pairing gaps, phase diagram, and speed of sound with results obtained using conventional regularization.