17–24 Jul 2024
Prague
Europe/Prague timezone

Combining QED and QCD transverse-momentum resummation for W and Z boson production at hadron colliders

18 Jul 2024, 09:15
15m
Club E

Club E

Parallel session talk 04. Top Quark and Electroweak Physics Top Quark and Electroweak Physics

Speaker

Andrea Autieri

Description

In this talk, we discuss the main features of the combined QCD and QED resummation formalism for weak vector boson production at hadron colliders. Specifically, resummation is realized at NNLL+NNLO in QCD with the inclusion of mixed QCD-QED effects at LL and pure QED ones at NLL matched with fixed-order full-EW NLO contribution (i.e. at one loop). Since the naive Abelianization of the QCD formalism is not suitable when considering an electrically charged final state, we exploited the heavy-quark resummation formalism, thereby properly incorporating QED final-state soft radiation. Numerical results at hadron colliders are presented for relevant kinematic distributions: on-shell Z and W boson transverse-momentum distributions and their ratio. We found that QED effects can reach up to the percent level, potentially important in view of SM parameters extraction.

Alternate track 06. Strong Interactions and Hadron Physics
I read the instructions above Yes

Authors

Andrea Autieri Dr German Sborlini (Universidad de Salamanca e IUFFyM) Giancarlo Ferrera (University of Milan) Leandro Javier Cieri (Universitat de València)

Presentation materials