Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 40: Top Quark (Theorie) 2

T 40.3: Talk

Tuesday, March 28, 2017, 11:30–11:45, VSH 05

NLO QCD Predictions for off-shell tt and ttH Production and Decay at a Linear Collider — •Christian Weiss^1,4, Bijan Chokoufé¹, Jürgen Reuter¹, Jonas Lindert^2,3, Stefano Pozzorini², and Wolfgang Kilian⁴ — ¹Desy Hamburg — ²Zürich University — ³Durham University — ⁴Siegen University

We present predictions for tt and ttH production and decay at future lepton colliders including non-resonant and interference contributions up to next-to-leading order (NLO) in perturbative QCD. The obtained precision predictions are necessary for a future precise determination of the top-quark Yukawa coupling, and allow for top-quark phenomenology in the continuum at an unprecedented level of accuracy. Simulations are performed with the automated NLO Monte-Carlo framework WHIZARD interfaced to the OpenLoops matrix element generator.