Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 51: BSM physics (theory)

T 51.3: Talk

Wednesday, March 17, 2021, 16:30–16:45, Ta

Top and Beauty synergies in SMEFT-fits at present and future colliders — Stefan Bißmann, •Cornelius Grunwald, Gudrun Hiller, and Kevin Kröninger — TU Dortmund, Fakultät Physik, Deutschland

The Standard Model Effective Field Theory (SMEFT) has become an established framework for searching physics beyond the Standard Model. Combining observables from top-quark and B physics has recently been shown to be a promising approach for improving constraints within SMEFT. In this talk, we present studies on the combination of measurements from top-quark and B physics in fits of SMEFT Wilson coefficients. We combine observables from top-quark pair production and decay processes with Z → b b and b → s transitions. We point out how the individual datasets allow to probe different sets of Wilson coefficients and how a combined fit to current top-quark and B data improves the constraints. We also demonstrate the influence of future measurements on the results of our fits by considering future projections for measurements from HL-LHC, Belle II and CLIC.