Emergent hadrons and diquarks

• Verfasst von: Fukushima, Kenji [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Strodthoff, Nils [VerfasserIn]
• Titel: Emergent hadrons and diquarks
• Verf.angabe: Kenji Fukushima, Jan M. Pawlowski, Nils Strodthoff
• E-Jahr: 2022
• Jahr: November 2022
• Umfang: 41 S.
• Illustrationen: Illustrationen
• Fussnoten: Online veröffentlicht am 31. August 2022, Artikelversion vom 19. September 2022 ; Gesehen am 04.10.2022
• Titel Quelle: Enthalten in: Annals of physics
• Ort Quelle: Amsterdam [u.a.] : Elsevier, 1957
• Jahr Quelle: 2022
• Band/Heft Quelle: 446(2022) vom: Nov., Artikel-ID 169106, Seite 1-41
• DOI: doi:10.1016/j.aop.2022.169106
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Diquark
• Sach-SW: Dynamical hadronization
• Sach-SW: Functional renormalisation group
• Sach-SW: Hadron physics
• Sach-SW: High baryon density
• K10plus-PPN: 1817941550

Abstract

We discuss the emergence of a low-energy effective theory with quarks, mesons, diquarks and baryons at vanishing and finite baryon density from first principle QCD. The present work also includes an overview on diquarks at vanishing and finite density, and elucidates the physics of transitional changes from baryonic matter to quark matter including diquarks. This set-up is discussed within the functional renormalisation group approach with dynamical hadronisation. In this framework it is detailed how mesons, diquarks, and baryons emerge dynamically from the renormalisation flow of the QCD effective action. Moreover, the fundamental degrees of freedom of QCD, quarks and gluons, decouple from the dynamics of QCD below the respective mass gaps. The resulting global picture unifies the different low energy effective theories used for low and high densities within QCD, and allows for a determination of the respective low energy constants directly from QCD.