6–13 Jul 2022
Bologna, Italy
Europe/Rome timezone

Mixed QCD-electroweak corrections to the Drell-Yan process in the high invariant mass region

8 Jul 2022, 17:00
15m
Room 8 (Blu)

Room 8 (Blu)

Parallel Talk Top quark and EW Physics Top quark and EW Physics

Speaker

Chiara Signorile-Signorile (Karlsruhe Institute of Technology )

Description

The Drell-Yan process offers an interesting opportunity to test the Standard Model (SM) and possibly reveal New Physics beyond it.
Indeed, dilepton production at high invariant masses is sensitive to beyond SM effects, while also being extremely well controlled both theoretically and experimentally and producing sufficient events for in-depth analyses.
In this talk I will present the recent calculation of mixed QCD-electroweak corrections to the neutral-current Drell-Yan production of a pair of massless leptons in the high invariant mass region.
At a relative high values of the dilepton invariant mass, $m_{\ell \ell} \sim 1$ TeV, we observe that these corrections can be well approximated by the product of QCD and electroweak corrections. Hence, thanks to the well-known Sudakov enhancement of the latter, they increase at large invariant mass and reach e.g. -3\% at $m_{\ell \ell} = 3$ TeV. I will discuss some technical aspects of the calculation, as well as results for fiducial cross sections and a selection of kinematic distributions.

In-person participation Yes

Primary author

Chiara Signorile-Signorile (Karlsruhe Institute of Technology )

Co-authors

Federico Buccioni (University of Oxford) Fabrizio Caola (University of Oxford, Wadham College) Herschel Chawdhry (University of Oxford) Federica Devoto (University of Oxford) Matthias Heller (Johannes Gutenberg Universitat) Andreas von Manteuffel (Michigan State University) Kirill Melnikov (Karlsruhe Institute of Technology ) Raoul Rontsch (Università di Milano and INFN)

Presentation materials