Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 41: Theorie: Beyond the Standard Model

T 41.4: Vortrag

Dienstag, 26. März 2019, 16:45–17:00, S16

Asymptotic safety and flavour phenomenology from an extended Yukawa sector — •Clara Hormigos Feliu — TU Dortmund, Otto-Hahn-Str. 444227 Dortmund, Germany

Recent works have shown that gauge-Yukawa theories can potentially be rendered UV complete by reaching a weakly interacting fixed point at high energies. This behaviour, known as Asymptotic Safety (AS), is a generalisation of the well-known asymptotically free behaviour of the non-abelian gauge couplings of the Standard Model (SM), and requires the presence of additional Yukawa interactions. In this talk, we explore SU(2)xU(1) extensions of the SM and their potential to deliver AS through Yukawa interactions with the lepton sector. Since the requirement of AS is highly predictive of the BSM couplings once matching to the SM is established, this allows us to test our models through phenomenological constraints. Furthermore, we find that certain scenarios can provide contributions to the muon anomalous magnetic moment which relax its long-standing discrepancy with the SM.