EPJ Web Conf.
Volume 158, 2017The XXIII International Workshop “High Energy Physics and Quantum Field Theory” (QFTHEP 2017)
|Number of page(s)||9|
|Section||Extensions of the Standard Model and Searches for new physics at the LHC and future colliders|
|Published online||24 October 2017|
Resonant top pair production at NLO in QCD
II. Physikalisches Institut, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
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Published online: 24 October 2017
We compute the contribution of a scalar H or pseudo-scalar A resonance in top-quark pair production at NLO accuracy in QCD including the interference between pure QCD SM diagrams and the resonant process which drastically modifies the lineshape of the signal from a simple peak to peak-dip structure. We assume a point-like coupling between scalar and the gluons in a consistent effective field theory framework and improve the results with reweighting techniques in the case of resolved fermion loops in the production. The computation is set in an automatic framework and can be used to produce showered unweighted events. The detailed study is presented in Ref .
© The authors, published by EDP Sciences, 2017
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