Erlangen 2026 – scientific programme
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T: Fachverband Teilchenphysik
T 23: Top Physics I
T 23.7: Talk
Tuesday, March 17, 2026, 17:45–18:00, KH 00.011
FCNC in the Top Sector — •Maurice Schüßler1, Pedro Miguel Ferreira2, and Milada Margarete Mühlleitner1 — 1Karlsruhe Institute of Technology, Karlsruhe, Germany — 2Universidade de Lisboa, Lisboa, Portugal
Several observations give access to physics beyond the Standard Model. Among these are flavor-changing neutral currents, which are suppressed within the Standard Model. While flavor-changing neutral current processes in the bottom sector are strongly constrained experimentally even in beyond Standard Model theories, those involving the top quark remain less explored due to its short lifetime. In our work, we extend the Standard Model by an additional Higgs doublet and study the flavor-changing neutral currents of these Higgs bosons, focusing on the top sector. Within this framework a scan of the possible parameter space is done after taking into account experimental constraints. Then the cross section of flavor violating final states originating from gluon fusion is calculated and discussed.
Keywords: FCNC; Top quark