Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 31: Beyond the Standard Model (Theory) 1
T 31.2: Vortrag
Dienstag, 22. März 2022, 16:30–16:45, T-H16
Catching Heavy Vector Triplets with the SMEFT: from one-loop matching to phenomenology — •Emma Geoffray1, Ilaria Brivio1, Sebastian Bruggisser1, Wolfgang Kilian2, Michael Krämer3, Michel Luchmann1, Tilman Plehn1, and Benjamin Summ3,4 — 1Institute for Theoretical Physics, Heidelberg University, Germany — 2Department of Physics, University of Siegen, Germany — 3Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, Germany — 4Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Germany
An important question for both phenomenologists and experimentalists is whether one can put limits on UV model parameters by matching the full theory onto the SMEFT. I will show that this is possible and explore the complementarity between SMEFT and model-specific approaches.
In particular, I will focus on an additional theory uncertainty arising from the matching at one-loop and discuss how this affects the limits set for the Heavy Vector Triplet extension of the Standard Model. I use the SFitter framework to derive limits, taking into account Higgs measurements and electroweak precision data previously implemented, as well as two new resonance searches for VH and VV. I will discuss the impact of those measurements on the fit and the complementarity of our results with direct searches.