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Higgs Boson Pair Production via Gluon Fusion: Higher-Order Corrections and Theoretical Uncertainties
Ajjath A H, Simone Alioli, Emanuele Bagnaschi +51
In this contribution, the higher-order QCD and electroweak corrections to Standard Model Higgs boson pair production via the gluon-fusion mechanism, , are summarized and…
Impact of NLO EW and QCD corrections to dimension-6 SMEFT coefficients constraints in Higgs decays
Luigi Bellafronte, Ana Rosario Cueto Gómez, Sally Dawson +4
This paper presents the impact of the inclusion of next-to-leading-order (NLO) QCD and electroweak (EW) corrections for dimension-6 Standard Model Effective Field Theory (SMEFT) pr…
Weak corrections to Minimal Dark Matter annihilations
Dario Buttazzo, Mateusz Duch, Pier Paolo Giardino +1
We compute the one-loop weak corrections to the annihilation cross sections of fermionic Minimal Dark Matter multiplets. Infrared divergences cancel in the dominant -wave combin…
NLO EW and QCD dimension-6 SMEFT results for Higgs and gauge boson decays in POPxf format
Luigi Bellafronte, Sally Dawson, Clara Del Pio +2
We present next-to-leading-order (NLO) QCD and electroweak (EW) results using the dimension-6 SMEFT for all 2- and 4- body Higgs decays, for and decays along with the corre…
Quantum tomography of beyond leading order
J. A. Aguilar-Saavedra, Pier Paolo Giardino
We revisit quantum tomography of and in the presence of higher-order corrections. We verify that neither the use of an effective spin analysing power (only fo…
Higgs Decays at NLO in the SMEFT
Luigi Bellafronte, Sally Dawson, Clara Del Pio +2
The calculation of precise predictions for Higgs decays is a necessary ingredient for determining Higgs properties at the LHC and future colliders. We compute all two- and three-bo…
Parametrisation and dictionary for CP violating Higgs boson interactions
Daniele Barducci, Matthew Forslund, Marta Fuentes Zamoro +3
Searches for charge-parity (CP) violating interactions of the Standard Model (SM) Higgs boson are a key priority of the LHC physics program. Experimental results from ATLAS and CMS…
Complete NLO SMEFT Electroweak Corrections to Higgs Decays
Luigi Bellafronte, Sally Dawson, Clara Del Pio +2
Precise predictions for Higgs decays are a crucial ingredient of the search for beyond the Standard Model (BSM) physics and the Standard Model Effective Field Theory (SMEFT) is a v…
: updated predictions at NLO QCD
Benjamin Campillo Aveleira, Long Chen, Joshua Davies +9
We present state-of-the-art predictions for the inclusive cross section of gluon-initiated production, following the recommendations of the LHC Higgs Working Group. In particu…
Probing Top Quark-Electron Interactions at Future Colliders
Luigi Bellafronte, Sally Dawson, Pier Paolo Giardino +1
Top quark interactions offer a window into possible new high scale physics and many models of new physics predict that the top quark interactions will deviate significantly from th…
NLO SMEFT Electroweak Corrections to Higgs Decays to 4 Leptons in the Narrow Width Approximation
Sally Dawson, Matthew Forslund, Pier Paolo Giardino
Some of the most precise measurements of Higgs boson couplings are from the Higgs decays to 4 leptons, where deviations from the Standard Model predictions can be quantified in the…
The Process in the SMEFT Beyond Leading Order
Konstantin Asteriadis, Sally Dawson, Pier Paolo Giardino +1
We systematically study potential effects of Beyond the Standard Model physics in the process. To this end, we include all relevant dimension-6 Standard M…
Impact of NLO Weak SMEFT Corrections in
Konstantin Asteriadis, Sally Dawson, Pier Paolo Giardino +1
We present results from a complete next-to-leading order (NLO) calculation of in the Standard Model Effective Field Theory (SMEFT) framework, including all c…
Electron Foreshadowing Discoveries at FCC-ee
Hooman Davoudiasl, Pier Paolo Giardino
A future circular collider (FCC-ee) may provide a unique probe of the electron Yukawa coupling through Higgs boson production on resonance. Motivated by this exciting poss…
The Importance of Flavor in SMEFT Electroweak Precision Fits
Luigi Bellafronte, Sally Dawson, Pier Paolo Giardino
Effective field theory tools are essential for exploring non-Standard Model physics at the LHC in the absence of the discovery of new light particles. Predictions for observables a…
Gluon Fusion Production at NLO: Merging the Transverse Momentum and the High-Energy Expansions
Luigi Bellafronte, Giuseppe Degrassi, Pier Paolo Giardino +2
The virtual corrections to and are analytically evaluated combining an expansion in the small transverse momentum of the final particles with an expansion val…
Flavorful Electroweak Precision Observables in the Standard Model Effective Field Theory
Sally Dawson, Pier Paolo Giardino
Electroweak precision observables (EWPO) measured at the W and Z poles provide stringent limits on possible beyond the Standard Model physics scenarios. In an effective field theor…
New Physics Through Drell Yan SMEFT Measurements at NLO
Sally Dawson, Pier Paolo Giardino
Drell Yan production is a sensitive probe of new physics and as such has been calculated to high order in both the electroweak and QCD sectors of the Standard Model, allowing for p…
Virtual corrections to via a transverse momentum expansion
Lina Alasfar, Giuseppe Degrassi, Pier Paolo Giardino +2
We compute the next-to-leading virtual QCD corrections to the partonic cross section of the production of a Higgs boson in association with a boson in gluon fusion. The calcula…
Higgs boson self-coupling constraints from single Higgs, double Higgs and Electroweak measurements
Giuseppe Degrassi, Biagio Di Micco, Pier Paolo Giardino +1
We set constraints on the trilinear Higgs boson self-coupling, , by combining the information coming from the mass and leptonic effective Weinberg angle, electroweak preci…
Uncovering the High Scale Higgs Singlet Model
Sally Dawson, Pier Paolo Giardino, Samuel Homiller
The scalar singlet model extends the Standard Model with the addition of a new gauge singlet scalar. We re-examine the limits on the new scalar from oblique parameter fits and from…
Higgs boson potential at colliders: status and perspectives
B. Di Micco, M. Gouzevitch, J. Mazzitelli +104
This document summarises the current theoretical and experimental status of the di-Higgs boson production searches, and of the direct and indirect constraints on the Higgs boson se…
Electroweak and QCD Corrections to and pole observables in the SMEFT
Sally Dawson, Pier Paolo Giardino
We compute the next-to-leading order QCD and electroweak corrections to and pole observables using the dimension-6 Standard Model effective field theory and present numeric…
A Numerical Routine for the Crossed Vertex Diagram with a Massive-Particle Loop
Roberto Bonciani, Giuseppe Degrassi, Pier Paolo Giardino +1
We present an evaluation of the two master integrals for the crossed vertex diagram with a closed loop of top quarks that allows for an easy numerical implementation. The different…