Precision studies at the LHC increasingly require theoretical control over QCD radiation beyond fixed-order perturbation theory, particularly in final states characterised by large separations in rapidity. High-energy logarithms can generate corrections at the ten-percent level even for electroweak-scale observables, as recently observed in Higgs production, motivating their systematic inclusion in precision analyses. We investigate this regime through Drell$-$Yan plus jet production, with particular emphasis on $Z$-boson final states and their angular and polarisation structure. High-energy logarithms are resummed at next-to-leading logarithmic accuracy and consistently combined with NLO fixed-order information. Beyond inclusive rapidity and transverse-momentum spectra, the framework resolves the azimuthal harmonic content of the process, whose pattern is reshaped by the transition from leading- to next-to-leading-order emission dynamics. We further develop the JETHAD$-$DYnamis$-$POWHEG strategy towards realistic lepton-level predictions, retaining spin correlations, decay-angle information, and experimentally accessible kinematics. This programme establishes $Z$+jet production as a precision probe of high-energy QCD dynamics for Run~3 and the HL-LHC.
Recent NLO analyses of inclusive Higgs production indicate that high-energy resummation corrections can reach the 10\% level, highlighting the growing impact of high-energy QCD dynamics on electroweak observables from LHC to FCC energies. We extend this precision program to Drell-Yan plus jet production by deriving hig...
We investigate the high-energy behavior of observables sensitive to the production of a Higgs boson in association with a singly charmed hadron at the $\sqrt{s}=14$ TeV LHC, with light-flavored hadrons considered for comparison. Our reference formalism is the hybrid factorization at NLL/NLO$^+$, where the standard coll...
We address the breakdown of fixed-order perturbation theory due to logarithms in $s/p_t^2$ for processes involving two jets or more at the energies currently explored at the LHC. The problem manifests itself in various ways: an obvious breakdown of the perturbative series for some kinematic distributions, highly asymme...
Jeppe R. Andersen, Sebastian Jaskiewicz, A. Maier et al.· 0 citations
High-precision theoretical predictions for both signal and background processes are crucial for the precision physics program at the LHC and HL-LHC. A prime example is the determination of the effective leptonic weak mixing angle from neutral current Drell-Yan via template-fit methods, where Monte Carlo templates direc...
Filippo Belloni, M. Chiesa, C. Del Pio et al.· 0 citations
Jet vetoes are central to precision measurements of Higgs-boson properties at the Large Hadron Collider, where they are used to suppress backgrounds containing hard QCD radiation. We present the first prediction for the Higgs jet-vetoed cross section at the third logarithmic order in QCD, consistently combining the nex...
S. Abreu, J. Gaunt, P. F. Monni et al.· 1 citation
The production of a Higgs boson with a jet is one of the most important processes studied at the LHC. It serves as a sensitive probe of high-energy dynamics and provides a powerful testing ground for the Standard Model, while also offering sensitivity to possible new physics effects. In this work, we perform a phenomen...
Shubham Yadav, Prashant Shukla· 0 citations
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