QCD NLO and EW NLO corrections to $t\bar{t}H$ production with top quark decays at hadron collider

Abstract

Higgs boson production associated with a top quark pair is an important process in studying the nature of the newly discovered Higgs boson at the LHC. In this letter, we report on our calculations including the next-to-leading order (NLO) QCD and NLO electroweak corrections to the $pp\to t\bar{t}H$ process in the standard model. We present the integrated cross sections at the $14\mathrm{TeV}$ LHC and even at the future proton-proton colliders with $\sqrt{s}=33$ and $100\mathrm{TeV}$. Our calculation includes the top quark subsequent decays by adopting the narrow width approximation. The kinematic distributions of Higgs boson and top quark decay products at the LHC are provided. We find that the $\mathcal{O}({\alpha }_s^2{\alpha }_{ew}^2)$ corrections are quantitatively comparable with the $\mathcal{O}({\alpha }_s^3{\alpha }_{ew})$ corrections in some kinematic region.

6 pages, 4 figures

References in corpus (6)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Assault on the NLO Wishlist: pp -> tt bb
• Scalar and pseudoscalar Higgs production in association with a top-antitop pair
• Weak corrections to Higgs hadroproduction in association with a top-quark pair
• Polarized QED splittings of massive fermions and dipole subtraction for non-collinear-safe observables

Cited by in corpus (11)

• Higgs boson production in association with top quarks in the POWHEG BOX
• Higgs production in association with a top-antitop pair in the Standard Model Effective Field Theory at NLO in QCD
• Antiferromagnetic ground state with pair-checkboard order in FeSe
• Higgs production in association with off-shell top-antitop pairs at NLO EW and QCD at the LHC
• NNLL resummation for the associated production of a top pair and a Higgs boson at the LHC
• Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons
• Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma \gamma$ at the high-luminosity LHC
• Resummation of soft and Coulomb corrections for $t\bar{t}h$ production at the LHC
• Electroweak corrections to top quark pair production in association with a hard photon at hadron colliders
• Pseudoscalar couplings in $t\bar{t}H$ production at NLO+NLL accuracy
• Automated computations of electroweak corrections using Sherpa+Recola