16 citations · 62 across the 18 of their papers we have counts for
17 papers
Electroweak precision observables at NLL order in the SMEFT
Ulrich A. Haisch, Ben A. Stefanek
Electroweak precision observables (EWPO) remain among the most powerful indirect probes of physics beyond the Standard Model (BSM), and future colliders are expected to s…
Matrix element method at NLO: A fine proof of concept in POWHEG
Ulrich Haisch, Jakob Linder, Luc Schnell +2
The matrix element method (MEM) provides a fully probabilistic approach to confront experimental events with theory, retaining all correlations in the scattering matrix element. Wh…
Constraining the Higgs potential using multi-Higgs production
Jia-Le Ding, Zach Gillis, Ulrich Haisch +10
The Higgs self-couplings remain only weakly constrained by current Large Hadron Collider (LHC) measurements, leaving ample room for physics beyond the Standard Model that could mod…
Dijet bounds on third-generation four-quark operators
Maximilian Freiheit, Ulrich Haisch
We use dijet measurements from the Large Hadron Collider to constrain ten third-generation four-quark operators in the Standard Model effective field theory. At tree level, only th…
How large are hadronic contributions to ?
Ulrich Haisch
The decay of the Higgs boson into two photons, , is a loop-induced process within the Standard Model, predominantly mediated by loops of bosons and top quarks. While…
Precision tests of third-generation four-quark operators: and
Ulrich Haisch, Marco Niggetiedt
We compute the two-loop contributions to Higgs production via gluon-gluon fusion () and Higgs decay into two photons (), arising from third-generation four-quar…
Polarized-boson pairs at NLO in the SMEFT
Ulrich Haisch, Jakob Linder, Giovanni Pelliccioli +2
We present a computation of diboson production in the channel at the Large Hadron Collider (LHC), incorporating leptonic decays of the gauge bosons and considering interm…
Neural simulation-based inference of the Higgs trilinear self-coupling via off-shell Higgs production
Aishik Ghosh, Maximilian Griese, Ulrich Haisch +1
One of the forthcoming major challenges in particle physics is the experimental determination of the Higgs trilinear self-coupling. While efforts have largely focused on on-shell d…
A new probe of the quartic Higgs self-coupling
Ulrich Haisch, Aparna Sankar, Giulia Zanderighi
We calculate the corrections to the Higgs wave-function renormalization constant arising from modified cubic, quartic, and quintic Higgs self-couplings up to the two-loop level. Us…
Higgs production from anomalous gluon dynamics
Ulrich Haisch
We present a two-loop analysis of the contributions to Higgs production via gluon-gluon fusion arising from the triple-gluon operator in the Standard Model effective field theory (…
A tale of +jet: SMEFT effects and the Lam-Tung relation
R. Gauld, U. Haisch, J. Weiss
We derive constraints on dimension-six light-quark dipole operators within the Standard Model (SM) effective field theory, based on measurements of production at SLC and LEP, a…
Precision tests of third-generation four-quark operators: one- and two-loop matching
Ulrich Haisch, Luc Schnell
We calculate the one- and two-loop matching corrections in the Standard Model effective field theory (SMEFT) that impact electroweak precision measurements and flavour physics obse…
Exact two-loop amplitudes for Higgs plus jet production with a cubic Higgs self-coupling
Ulrich Haisch, Marco Niggetiedt
We compute the corrections to the two-loop amplitudes for , , , and due to a modified cubic Higgs self-coupling. The exact depende…
Novel collider signatures in the type-I 2HDM+ model
Spyros Argyropoulos, Ulrich Haisch, Ilia Kalaitzidou
The 2HDM+ model is one of the main models used in the interpretations of dark matter searches at the LHC. So far, all the 2HDM+ benchmarks considered by the ATLAS and CMS exp…
SMEFT at NNLOPS: production
Rhorry Gauld, Ulrich Haisch, Luc Schnell
In the context of the Standard Model effective field theory (SMEFT) the next-to-next-to-leading (NNLO) QCD corrections to the Higgsstrahlungs () processes in hadronic collision…
Quantum collider probes of the fermionic Higgs portal
U. Haisch, M. Ruhdorfer, K. Schmid +1
We explore the sensitivity of future hadron colliders to constrain the fermionic Higgs portal, with a focus on scenarios where the new fermions cannot be directly observed in exoti…
LHC Dark Matter Working Group: Next-generation spin-0 dark matter models
Tomohiro Abe, Yoav Afik, Andreas Albert +50
Dark matter (DM) simplified models are by now commonly used by the ATLAS and CMS Collaborations to interpret searches for missing transverse energy (). The coher…