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HK: Fachverband Physik der Hadronen und Kerne
HK 30: Heavy-Ion Collisions and QCD Phases V
HK 30.5: Vortrag
Mittwoch, 12. März 2025, 17:00–17:15, HS 3 Chemie
Renormalized quark-meson-diquark model — •Hosein Gholami1, Lennart Kurth1, Ugo Mire2, Michael Buballa1, and Bernd-Jochen Schaefer2 — 1TU Darmstadt — 2Justus Liebig University Giessen
The Quark-Meson-Diquark (QMD) model is a framework for investigating color superconductivity (CSC) in dense quark matter. Unlike the Nambu-Jona-Lasinio (NJL) model, the QMD models inherent renormalizability offers a more robust theoretical foundation. We previously employed RG-consistent treatments in the three-flavor NJL model, demonstrating how such methods eliminate cutoff artifacts. In this work, we use the QMD model to compare RG consistency and renormalization on firmer ground. This talk will focus on the renormalized QMD model, its interplay with RG-consistent approaches, and highlight their key differences. Finally, we introduce the three-flavor renormalized QMD model as an improved alternative to the NJL model for studying CSC and the physics of dense quark matter.
Keywords: quark meson diquark model; Color superconductivitiy; Nambu Jona Lasinio model; Renormalization