Conveners
Track 2 - High energy: Parallel Session VII
- Marco Niggetiedt
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Mateusz Pawel Czaja (KIT TTP)10/9/26, 9:00 AM
The di-boson WW production is an important process for the precision tests of the Standard Model at the electroweak scale. In addition, it is one of the most significant backgrounds in the H→WW decay. While the gluon fusion production channel contributes only around 5% of the cross section, it is expected to receive sizable QCD corrections that will become significant during the High...
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Sebastian Jaskiewicz (Bern U.)10/9/26, 9:25 AM1
In this talk, I will discuss the growing importance of controlling high-energy logarithms in predictions for LHC processes. In a recent ATLAS measurement [arXiv:2403.02793], state-of-the-art matched parton-shower predictions for a hard photon or an electroweak
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vector boson in association with at least two jets (pp→{γ,Z,W}+jj) deviate systematically from data as the partonic collision energy... -
Daniel Stremmer (KIT)10/9/26, 9:50 AM
We present the C++ library ggxy, which can be used for the fast and flexible calculation of partonic and hadronic cross sections to gluon-initiated top-mediated processes such as $gg\to HH$. We have extended the functionality of ggxy with the implementation of the $gg\to ZH$ and $gg\to VV$ processes. While all other parts are exact, the two-loop amplitudes with internal top quarks have been...
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Ajjath A H (IISc, Bangalore, India)10/9/26, 10:15 AM
We report progress toward understanding quark-mass effects in the (gg \rightarrow HH) amplitude at NNLO, at leading power in the high-energy limit (s, |t|, |u| \gg m_t^2 \gg m_H^2). The logarithmic behavior of this process in this regime has recently been shown to follow a predictable, factorized pattern at leading power. We present results for the three-loop virtual QCD corrections in...
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