Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 87: Higgs physics IX (Charm and Tau Final States)
T 87.1: Vortrag
Freitag, 4. April 2025, 09:00–09:15, ZHG104
NLO QCD Corrections to ZH Production via Gluon Fusion — •Dominik Grau1, Matthias Steinhauser1, Marco Vitti1, Joshua Davies2, and Kay Schönwald3 — 1Karlsruhe Institute of Technology , Karlsruhe, Germany — 2The University of Liverpool, Liverpool, United Kingdom — 3Universität Zürich, Zürich, Switzerland
The associated production of a Higgs boson with a vector boson is an important process investigated at the LHC. Formally the gluon fusion channel enters the process pp→ZH at NNLO. However, it gives sizeable contributions to the cross section and to the theoretical uncertainties which motivates the computation of NLO QCD corrections to gg→ZH. In this talk we describe an approach to obtain analytic results for the two-loop virtual corrections as an expansion around the forward limit. We show that the combination of these results with analytic high-energy expansions can cover the whole phase-space without the need of time-consuming numerical methods.
Keywords: gluon-induced Higgs Strahlung; Precision Physics; Analytic Approximations