Predictive power of grand unification from quantum gravity

• Verfasst von: Eichhorn, Astrid [VerfasserIn]
• Verfasst von: Held, Aaron [VerfasserIn]
• Verfasst von: Wetterich, Christof [VerfasserIn]
• Titel: Predictive power of grand unification from quantum gravity
• Verf.angabe: Astrid Eichhorn, Aaron Held, Christof Wetterich
• E-Jahr: 2020
• Jahr: 24 August 2020
• Umfang: 30 S.
• Fussnoten: Gesehen am 22.10.2020
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2020
• Band/Heft Quelle: (2020,8) Artikel-Nummer 111, 30 Seiten
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP08(2020)111
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1736264745

Abstract

If a grand-unified extension of the asymptotically safe Reuter fixed-point for quantum gravity exists, it determines free parameters of the grand-unified scalar potential. All quartic couplings take their fixed-point values in the trans-Planckian regime. They are irrelevant parameters that are, in principle, computable for a given particle content of the grand unified model. In turn, the direction of spontaneous breaking of the grand-unified gauge symmetry becomes predictable. For the flow of the couplings below the Planck mass, gauge and Yukawa interactions compete for the determination of the minimum of the effective potential.