259 citations · 1.2k across the 34 of their papers we have counts for
36 papers · 1 filter
Top-Yukawa contributions to : two-loop leading-colour amplitudes
Heribertus Bayu Hartanto, Rene Poncelet
We derive two-loop scattering amplitudes for bottom-quark pair production in association with a Higgs boson at the LHC, focusing on terms proportional to the top-quark Yukawa coupl…
Higher-order QCD corrections to top-quark pair production in association with a jet
Simon Badger, Matteo Becchetti, Colomba Brancaccio +4
The production of a top-quark pair, the heaviest known elementary particle, in association with a light jet is a key process for studying the properties of the Standard Model of Pa…
Double virtual QCD corrections to jet production at the LHC
Simon Badger, Matteo Becchetti, Colomba Brancaccio +4
We present a leading colour computation of the double virtual contributions to top-quark pair production in association with a jet at a hadron collider at next-to-next-to-leading o…
One-loop amplitudes for and productions at the LHC through
Souvik Bera, Colomba Brancaccio, Dhimiter Canko +1
We present analytic expressions for the one-loop QCD helicity amplitudes contributing to top-quark pair production in association with a photon or a jet at the Large Hadron Collide…
Two-loop amplitudes for corrections to production at the LHC
Simon Badger, Heribertus Bayu Hartanto, Zihao Wu +2
We present the two-loop helicity amplitudes contributing to the next-to-next-to-leading order QCD predictions for W-boson production in association with two photons at the Large Ha…
Isolated photon production in association with a jet pair through next-to-next-to-leading order in QCD
Simon Badger, Michal Czakon, Heribertus Bayu Hartanto +4
In this work, we provide a comprehensive set of differential cross-section distributions for photon + di-jet production in proton-proton collisions with next-to-next-to-leading ord…
Flavour anti- algorithm applied to production at the LHC
Heribertus Bayu Hartanto, Rene Poncelet, Andrei Popescu +1
We apply the recently proposed flavoured anti- jet algorithm to production at the Large Hadron Collider at TeV. We present results for the to…
Report of the Topical Group on Top quark physics and heavy flavor production for Snowmass 2021
Reinhard Schwienhorst, Doreen Wackeroth, Kaustubh Agashe +68
This report summarizes the work of the Energy Frontier Topical Group on EW Physics: Heavy flavor and top quark physics (EF03) of the 2021 Community Summer Study (Snowmass). It aims…
NNLO QCD corrections to production at the LHC
Heribertus Bayu Hartanto, Rene Poncelet, Andrei Popescu +1
We compute theoretical predictions for the production of a W-boson in association with a bottom-quark pair at hadron colliders at next-to-next-to-leading order (NNLO) in QCD, inclu…
NLO QCD corrections to full off-shell production of including leptonic decays
Giuseppe Bevilacqua, Heribertus Bayu Hartanto, Manfred Kraus +2
Motivated by ongoing new physics searches in the top-quark sector at the Large Hadron Collider we report on the calculation of NLO QCD corrections to the Standard Model $pp\to t\ba…
at the LHC: On the size of off-shell effects and prompt -jet identification
Giuseppe Bevilacqua, Huan-Yu Bi, Heribertus Bayu Hartanto +3
We investigate full off-shell effects in production in the dilepton channel at the LHC with the center-of-mass energy TeV. Specifically, we compu…
Modeling uncertainties of multilepton signatures
G. Bevilacqua, H. Y. Bi, F. Febres Cordero +5
In light of recent discrepancies between the modeling of signatures and measurements reported by the Large Hadron Collider (LHC) experimental collaborations, we in…
Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders
Simon Badger, Christian Brønnum-Hansen, Dmitry Chicherin +7
We present an analytic computation of the gluon-initiated contribution to diphoton plus jet production at hadron colliders up to two loops in QCD. We reconstruct the analytic form…
at the LHC: On the size of corrections and -jet definitions
Giuseppe Bevilacqua, Huan-Yu Bi, Heribertus Bayu Hartanto +3
We report on the calculation of the next-to-leading order QCD corrections to the production of a pair in association with two heavy-flavour jets. We concentrate on the d…
Two-loop leading colour QCD helicity amplitudes for top quark pair production in the gluon fusion channel
Simon Badger, Ekta Chaubey, Heribertus Bayu Hartanto +1
We present a complete set of analytic helicity amplitudes for top quark pair production via gluon fusion at two-loops in QCD. For the first time, we include corrections due to mass…
Two-loop QCD corrections to production at hadron colliders
Simon Badger, Heribertus Bayu Hartanto, Simone Zoia
We present an analytic computation of the two-loop QCD corrections to for an on-shell -boson using the leading colour and massless bottom quark approxi…
NLO QCD corrections to off-shell production at the LHC: Correlations and Asymmetries
Giuseppe Bevilacqua, Huan-Yu Bi, Heribertus Bayu Hartanto +3
Recent discrepancies between theoretical predictions and experimental data in multi-lepton plus -jets analyses for the process, as reported by the ATLAS collabor…
The simplest of them all: at NLO accuracy in QCD
Giuseppe Bevilacqua, Huan-Yu Bi, Heribertus Bayu Hartanto +2
Recent measurements of the process in multi-lepton final states, as performed by the ATLAS collaboration in the context of the Higgs boson studies in the $t\b…
Off-shell vs on-shell modelling of top quarks in photon associated production
G. Bevilacqua, H. B. Hartanto, M. Kraus +2
We present a comparative study of various approaches for modelling of the final state in production at the LHC. Working at the NLO in QC…
Towards constraining Dark Matter at the LHC: Higher order QCD predictions for
G. Bevilacqua, H. B. Hartanto, M. Kraus +2
Triggered by ongoing dark matter searches in the top quark sector at the Large Hadron Collider we report on the calculation of the next-to-leading order QCD corrections to the Stan…
A numerical evaluation of planar two-loop helicity amplitudes for a W-boson plus four partons
Heribertus Bayu Hartanto, Simon Badger, Christian Brønnum-Hansen +1
We present the first numerical results for the two-loop helicity amplitudes for the scattering of four partons and a W-boson in QCD. We use a finite field sampling method to reduce…
Analytic helicity amplitudes for two-loop five-gluon scattering: the single-minus case
Simon Badger, Christian Brønnum-Hansen, Heribertus Bayu Hartanto +1
We present a compact analytic expression for the leading colour two-loop five-gluon amplitude in Yang-Mills theory with a single negative helicity and four positive helicities. The…
Precise predictions for cross section ratios at the LHC
G. Bevilacqua, H. B. Hartanto, M. Kraus +2
With the goal of increasing the precision of NLO QCD predictions for the process in the di-lepton top quark decay channel we present theoretical predictions for…
Applications of integrand reduction to two-loop five-point scattering amplitudes in QCD
Simon Badger, Christian Brønnum-Hansen, Thomas Gehrmann +4
We review the current state-of-the-art in integrand level reduction for five-point scattering amplitudes at two loops in QCD. We present some benchmark results for the evaluation o…