Abstract
The measurement of the triple gauge couplings (TGCs) is a central part of diboson studies at the LHC. In this letter we consider the Zγ process and include anomalous TGCs (aTGCs) in the event generation at next-to-next-to-leading order QCD accuracy (NNLO+PS) within the MINNLOPS framework. While our implementation is fully general and applies to both Z→ℓ+ℓ− and Z→νν¯ decays, we focus here on the νν¯γ final state. After validation of our simulation of νν¯γ events, for which NNLO+PS accuracy is achieved for the first time, the effects of aTGCs on various distributions are studied. Moreover, we show the relevance of NNLO+PS accuracy for the νν¯γ background to photon plus missing energy signatures in dark-matter searches, and we compare MINNLOPS predictions for νν¯γ production to recent 13 TeV data.
Original language | English |
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Article number | 136846 |
Journal | Physics Letters B |
Volume | 824 |
DOIs | |
State | Published - 10 Jan 2022 |
Externally published | Yes |