Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866914013943693312 |
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| author | Gholami, Hosein Hofmann, Marco Buballa, Michael |
| author_facet | Gholami, Hosein Hofmann, Marco Buballa, Michael |
| contents | 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 $T_c(μ)$ 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_21735 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment Gholami, Hosein Hofmann, Marco Buballa, Michael High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Theory Nuclear Theory 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 $T_c(μ)$ 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. |
| title | Removing cutoff artifacts in the NJL model by a Renormalization Group consistent treatment |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2508.21735 |