Constraining BSM Physics at the LHC: Four top final states with NLO accuracy in perturbative QCD
arXiv:1206.3064 · doi:10.1007/JHEP07(2012)111
Abstract
Many theories, from Supersymmetry to models of Strong Electroweak Symmetry Breaking, look at the production of four top quarks as an interesting channel to evidentiate signals of new physics beyond the Standard Model. The production of four-top final states requires large partonic energies, above the 4mt threshold, that are available at the CERN Large Hadron Collider and will become more and more accessible with increasing energy and luminosity of the proton beams. A good theoretical control on the Standard Model background is a fundamental prerequisite for a correct interpretation of the possible signals of new physics that may arise in this channel. In this paper we report on the calculation of the next-to-leading order QCD corrections to the Standard Model process pp -> tttt + X. As it is customary for such studies, we present results for both integrated and differential cross sections. A judicious choice of a dynamical scale allows us to obtain nearly constant K-factors in most distributions.
arXiv comment21 pages, 14 figures, 3 tables
References in corpus (49)
- Parton distributions for the LHC
- New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
- A General Algorithm for Calculating Jet Cross Sections in NLO QCD
- One-Loop n-Point Gauge Theory Amplitudes, Unitarity and Collinear Limits
- Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
- Generalized Unitarity and One-Loop Amplitudes in N=4 Super-Yang-Mills
- Reducing full one-loop amplitudes to scalar integrals at the integrand level
- The Dipole Formalism for Next-to-Leading Order QCD Calculations with Massive Partons
- Inclusive Jet Production, Parton Distributions, and the Search for New Physics
- CutTools: a program implementing the OPP reduction method to compute one-loop amplitudes
- Physics potential and experimental challenges of the LHC luminosity upgrade
- OneLOop: for the evaluation of one-loop scalar functions
- Full one-loop amplitudes from tree amplitudes
- Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
- Assault on the NLO Wishlist: pp -> tt bb
- On the Rational Terms of the one-loop amplitudes
- Precise Predictions for W + 4 Jet Production at the Large Hadron Collider
- Automated one-loop calculations: a proof of concept
- Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order
- NLO QCD corrections to pp -> t anti-t b anti-b + X at the LHC
- NLO QCD corrections to WWbb production at hadron colliders
- HELAC: a package to compute electroweak helicity amplitudes
- Precise Predictions for W + 3 Jet Production at Hadron Colliders
- Helac-Phegas: a generator for all parton level processes
- Dominant QCD Backgrounds in Higgs Boson Analyses at the LHC: A Study of pp -> t anti-t + 2 jets at Next-To-Leading Order
- NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 2. full hadronic results
- Next-to-leading order calculation of four-jet observables in electron-positron annihilation
- Measuring the Higgs Boson Self Coupling at the LHC and Finite Top Mass Matrix Elements
- Polarizing the Dipoles
- Feynman Rules for the Rational Part of the QCD 1-loop amplitudes
- PHEGAS: a phase-space generator for automatic cross-section computation
- Physics searches at the LHC
- Next-to-leading order QCD predictions for W+W+jj production at the LHC
- Top Compositeness at the Tevatron and LHC
- Kaluza--Klein excitations of gauge bosons at the LHC
- On the computation of multigluon amplitudes
- Manifestations of Top Compositeness at Colliders
- Optimizing the Reduction of One-Loop Amplitudes
- NLO QCD corrections to the production of two bottom-antibottom pairs at the LHC
- Gluino decays with heavier scalar superpartners
- Parton Distributions for Event Generators
- Multi-jet Production in Hadron Collisions
- NLO QCD corrections to the production of W+ W- plus two jets at the LHC
- Multi-parton Cross Sections at Hadron Colliders
- Associated production of a Kaluza-Klein excitation of a gluon with a t t(bar) pair at the LHC
- Precise predictions for W γγ+jet production at hadron colliders
- Four tops on the real projective plane at LHC
- Low-scale warped extra dimension and its predilection for multiple top quarks
- On the next-to-leading order QCD K-factor for top anti-top bottom anti-bottom production at the TeVatron
Cited by in corpus (65)
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- Maximally Symmetric Two Higgs Doublet Model with Natural Standard Model Alignment
- Recursive generation of one-loop amplitudes in the Standard Model
- Large NLO corrections in and hadroproduction from supposedly subleading EW contributions
- Numerical evaluation of virtual corrections to multi-jet production in massless QCD
- NLO QCD corrections to off-shell top-antitop production with leptonic decays at hadron colliders
- Associated production of a top-quark pair with vector bosons at NLO in QCD: impact on searches at the LHC
- Phenomenological signatures of additional scalar bosons at the LHC
- Measurement of the and cross sections in proton-proton collisions at TeV with the ATLAS detector
- Next-to-leading order QCD corrections to five jet production at the LHC
- Revisiting Type-II see-saw: Present Limits and Future Prospects at LHC
- A comprehensive approach to dark matter studies: exploration of simplified top-philic models
- NLO QCD corrections to multi-jet production at the LHC with a centre-of-mass energy of sqrt(s)=8 TeV
- Off-shell Top Quarks with One Jet at the LHC: A comprehensive analysis at NLO QCD
- Multi-leg One-loop Massive Amplitudes from Integrand Reduction via Laurent Expansion
- Observation of four-top-quark production in the multilepton final state with the ATLAS detector
- Complete Nagy-Soper subtraction for next-to-leading order calculations in QCD
- Closing the Wedge: Search Strategies for Extended Higgs Sectors with Heavy Flavor Final States
- Search for standard model production of four top quarks with same-sign and multilepton final states in proton-proton collisions at 13 TeV
- Probing Higgs Width and Top Quark Yukawa Coupling from and Productions
- The -Parameter: An Oblique Higgs View
- Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
- Limiting Top-Higgs Interaction and Higgs-Boson Width from Multi-Top Productions
- Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at 13 TeV
- Constraining operators from four-top production: a case for enhanced EFT sensitivity
- Model-Independent Production of a Top-Philic Resonance at the LHC
- The Reach of the High-Energy LHC for Gluinos and Top Squarks in SUSY Models with Light Higgsinos
- Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at = 13 TeV with the ATLAS detector
- Complete SMEFT predictions for four top quark production at hadron colliders
- Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at sqrt(s) = 8 TeV
- Gluino reach and mass extraction at the LHC in radiatively-driven natural SUSY
- Counting to one: reducibility of one- and two-loop amplitudes at the integrand level
- Off-shell vs on-shell modelling of top quarks in photon associated production
- Searches for additional Higgs bosons in multi-top-quarks events at the LHC and the International Linear Collider
- Constraining top quark flavor violation and dipole moments through three and four top quark productions at the LHC
- Top physics at the LHC
- Aspects of the same-sign diboson signature from wino pair production with light higgsinos at the high luminosity LHC
- Computation of multi-leg amplitudes with NJet
- Gamma Rays from Top-Mediated Dark Matter Annihilations
- Top-quark physics at the Large Hadron Collider
- Effective field theory and scalar extensions of the top quark sector
- Natural Alignment in the Two Higgs Doublet Model
- Quantifying quark mass effects at the LHC: A study of pp -> b anti-b b anti-b + X at next-to-leading order
- Four-top as probe of light top-philic New Physics
- On the BSM reach of four top production at the LHC
- Natural Standard Model Alignment in the Two Higgs Doublet Model
- Four-top quark physics at the LHC
- What can We Learn from Triple Top-Quark Production?
- Same-sign Multilepton Signatures of an Quintuplet at the LHC
- Search for exotic leptons in final states with two or three leptons and fat-jets at 13 TeV LHC
- Search for charged Higgs bosons through vector-like top quark pair production at the LHC
- Four top final states with NLO accuracy in perturbative QCD: 4 lepton channel
- Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
- Climbing to the Top of the ATLAS 13 TeV data
- Top-Quark Physics at the LHC
- Four top final states with NLO accuracy in perturbative QCD: 3 lepton channel
- ttbb as a probe of New Physics at the LHC
- Automated computation of scattering amplitudes
- Dipole Splitting Algorithm -- A practical algorithm to use the dipole subtraction procedure --
- Probing gauge-phobic heavy Higgs bosons at high energy hadron colliders
- Searching for top-philic heavy resonances in boosted four-top final states
- Hadroproduction of four top quarks in the POWHEG BOX
- Differential top pair cross section and top anti-top plus jets Physics
- Modelling top-quark decays in production at the LHC
- : NLO QCD corrections in production and decays for the channel