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arXiv · 2508.21735

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

Hosein Gholami·Marco Hofmann·Michael Buballa
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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.

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Hosein Gholami, Marco Hofmann, Michael Buballa. 2025-08-29. Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment. https://arxiv.org/abs/2508.21735

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