Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report

Abstract

This Report summarizes the proceedings of the 2015 Les Houches workshop on Physics at TeV Colliders. Session 1 dealt with (I) new developments relevant for high precision Standard Model calculations, (II) the new PDF4LHC parton distributions, (III) issues in the theoretical description of the production of Standard Model Higgs bosons and how to relate experimental measurements, (IV) a host of phenomenological studies essential for comparing LHC data from Run I with theoretical predictions and projections for future measurements in Run II, and (V) new developments in Monte Carlo event generators.

arXiv commentProceedings of the Standard Model Working Group of the 2015 Les Houches Workshop, Physics at TeV Colliders, Les Houches 1-19 June 2015. 227 pages

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• Parton distributions for the LHC
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations and parton shower simulations
• Dispelling the N^3 myth for the Kt jet-finder
• Scattering Amplitudes with Open Loops
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• Next-to-Next-to-Leading Order Higgs Production at Hadron Colliders
• Higgs boson production at hadron colliders in NNLO QCD
• Tuning Monte Carlo Generators: The Perugia Tunes
• An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
• MadEvent: Automatic Event Generation with MadGraph
• QCD matrix elements + parton showers: The NLO case
• High-precision QCD at hadron colliders: electroweak gauge boson rapidity distributions at NNLO
• Three-jet cross sections to next-to-leading order
• Reducing full one-loop amplitudes to scalar integrals at the integrand level
• MCFM for the Tevatron and the LHC
• NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels
• A critical appraisal of NLO+PS matching methods
• Antenna Subtraction at NNLO
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• Uncertainties on alpha_S in global PDF analyses and implications for predicted hadronic cross sections
• Next-to-leading order calculation of three-jet observables in hadron-hadron collision
• Resummation of non-global QCD observables
• NLO Electroweak Corrections to Higgs Boson Production at Hadron Colliders
• Electroweak corrections to charged-current e+e- --> 4 fermion processes - technical details and further results
• An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
• Higgs Radiation off Top Quarks at the Tevatron and the LHC
• Isolated photons in perturbative QCD
• Electroweak and QCD corrections to Higgs production via vector-boson fusion at the LHC
• Neutral Higgs-Boson Pair Production at Hadron Colliders: QCD Corrections
• Predictions for all processes e^+e^- -> 4 fermions + gamma
• A novel subtraction scheme for double-real radiation at NNLO
• Soft Gluon Radiation in Higgs Boson Production at the LHC
• Hadronic contributions to $(g-2)$ of the leptons and to the effective fine structure constant $\alpha (M_Z^2)$
• NLO Higgs boson production via gluon fusion matched with shower in POWHEG
• Strong and electroweak corrections to the production of Higgs+2jets via weak interactions at the LHC
• Parton distribution functions and benchmark cross sections at NNLO
• Precise predictions for the Higgs-boson decay H -> W W/Z Z -> 4 leptons
• Determining the Structure of Higgs Couplings at the LHC
• Associated Higgs production with top quarks at the Large Hadron Collider: NLO QCD corrections
• QCDNUM: Fast QCD Evolution and Convolution
• A Higher Order Perturbative Parton Evolution Toolkit (HOPPET)
• Three-jet cross sections in hadron-hadron collisions at next-to-leading order
• Heavy quarks in deep-inelastic scattering
• The fully differential single-top-quark cross section in next-to-leading order QCD
• Higgs Decay to Order α_s^4
• Cross section of isolated prompt photons in hadron-hadron collisions
• A Numerical Unitarity Formalism for Evaluating One-Loop Amplitudes
• Single top production and decay at next-to-leading order
• On the Rational Terms of the one-loop amplitudes
• Associated WH production at hadron colliders: a fully exclusive QCD calculation at NNLO
• Higgs boson production in association with a jet at next-to-next-to-leading order in perturbative QCD
• NLO QCD corrections to t tbar + jet production at hadron colliders
• Electroweak radiative corrections to W-boson production at hadron colliders
• Matching Tree-Level Matrix Elements with Interleaved Showers
• Efficient evolution of unpolarized and polarized parton distributions with QCD-PEGASUS
• A full Next to Leading Order study of direct photon pair production in hadronic collisions
• MHV Rules for Higgs Plus Multi-Gluon Amplitudes
• Radiative corrections to the semileptonic and hadronic Higgs-boson decays H -> W W/Z Z -> 4 fermions
• Probing the Higgs self-coupling at hadron colliders using rare decays
• Merging Multi-leg NLO Matrix Elements with Parton Showers
• Higgs production with large transverse momentum in hadronic collisions at next-to-leading order
• Theory Uncertainties for Higgs and Other Searches Using Jet Bins
• Single top quark production at the Tevatron: threshold resummation and finite-order soft gluon corrections
• Scattering AMplitudes from Unitarity-based Reduction Algorithm at the Integrand-level
• NLO QCD corrections to WWbb production at hadron colliders
• Precision electroweak calculation of the production of a high transverse-momentum lepton pair at hadron colliders
• Higgs and Z-boson production with a jet veto
• A Variable-Flavour Number Scheme for NNLO
• Helac-Phegas: a generator for all parton level processes
• Electroweak corrections to Higgs-strahlung off W/Z bosons at the Tevatron and the LHC with HAWK
• Dominant QCD Backgrounds in Higgs Boson Analyses at the LHC: A Study of pp -> t anti-t + 2 jets at Next-To-Leading Order
• Next-to-Leading Order Results for t-tbar-h Production at the Tevatron
• Soft triple-real radiation for Higgs production at N3LO
• Resummation of double logarithms in electroweak high energy processes
• t tbar W and t tbar Z Hadroproduction at NLO accuracy in QCD with Parton Shower and Hadronization effects
• Radiative corrections to the neutral-current Drell-Yan process in the Standard Model and its minimal supersymmetric extension
• Next-to-Leading order Higgs + 2 jet production via gluon fusion
• NLO QCD matrix elements + parton showers in e+e- -> hadrons
• Heavy-quark mass dependence in global PDF analyses and 3- and 4-flavour parton distributions
• Higgs production in gluon fusion beyond NNLO
• Next-to-leading order QCD corrections to t-tbar-Z production at the LHC
• Bloch-Nordsieck violating electroweak corrections to inclusive TeV scale hard processes
• Coherent Parton Showers with Local Recoils
• Determining the Higgs Boson Self Coupling at Hadron Colliders
• Polarizing the Dipoles
• NLO QCD corrections to top quark pair production and decay at hadron colliders
• On the Higgs boson pair production at the LHC
• NLO QCD corrections to off-shell top-antitop production with leptonic decays at hadron colliders
• Second order QCD corrections to jet production at hadron colliders: the all-gluon contribution
• Summing up Subleading Sudakov Logarithms
• Automation of the Dipole Subtraction Method in MadGraph/MadEvent
• NLO QCD corrections to top quark pair production in association with one hard jet at hadron colliders
• New Physics in LHC Higgs boson pair production
• NLL+NNLO predictions for jet-veto efficiencies in Higgs-boson and Drell-Yan production
• The Nielsen Identities of the SM and the definition of mass
• Higgs boson pair production at the LHC in the $b\bar{b}{W}^{+}{W}^{-}$ channel
• A subtraction scheme for NNLO computations
• Factorization and NNLL Resummation for Higgs Production with a Jet Veto
• Quantitative constraints on the gluon distribution function in the proton from collider isolated-photon data
• Feynman Rules for the Rational Part of the QCD 1-loop amplitudes
• Vector-boson pair production at the LHC to $\mathcal{O}({\alpha }^3)$ accuracy
• Weak radiative corrections to dijet production at hadron colliders
• Four-Jet Production at the Large Hadron Collider at Next-to-Leading Order in QCD
• Factorization and N^3LL_p+NNLO Predictions for the Higgs Cross Section with a Jet Veto
• Electroweak corrections to W + jet hadroproduction including leptonic W-boson decays
• Scattering Amplitudes from Multivariate Polynomial Division
• Electroweak corrections to dilepton + jet production at hadron colliders
• Multiple Jets at the LHC with High Energy Jets
• Automating the POWHEG method in Sherpa
• Effect of changes of variable flavor number scheme on parton distribution functions and predicted cross sections
• Constraints on the gluon PDF from top quark pair production at hadron colliders
• Breakdown of the Narrow Width Approximation for New Physics
• Electroweak corrections to hadronic production of W bosons at large transverse momenta
• Constructing All-Order Corrections to Multi-Jet Rates
• Unitarising Matrix Element + Parton Shower merging
• Subleading Nc improved Parton Showers
• The fully differential decay rate of a Higgs boson to bottom-quarks at NNLO in QCD
• Effective theory approach to unstable particle production
• A Precision Measurement of the Inclusive ep Scattering Cross Section at HERA
• QCD corrections to Associated t-tbar-H production at the Tevatron
• Total cross-section for Higgs boson hadroproduction with anomalous Standard Model interactions
• Hadronic top-quark pair production in association with two jets at Next-to-Leading Order QCD
• Weak Boson Emission in Hadron Collider Processes
• The Higgs Boson Lineshape
• The fermion-loop scheme for finite-width effects in e^+ e^- annihilation into four fermions
• W+jets Matrix Elements and the Dipole Cascade
• Top quark pair production in association with a jet: QCD corrections and jet radiation in top quark decays
• Two-loop electroweak angular-dependent logarithms at high energies
• Single top production in association with a Z boson at the LHC
• Combination of electroweak and QCD corrections to single W production at the Fermilab Tevatron and the CERN LHC
• LUSIFER: a LUcid approach to SIx-FERmion production
• Electroweak corrections to W-boson pair production at the LHC
• Effective theory calculation of resonant high-energy scattering
• Next-to-leading order QCD corrections to five jet production at the LHC
• Electroweak two-loop Sudakov logarithms for on-shell fermions and bosons
• spinney: A Form Library for Helicity Spinors
• The impact of PDF and alphas uncertainties on Higgs Production in gluon fusion at hadron colliders
• Electroweak Sudakov at two loop level
• General-mass treatment for deep inelastic scattering at two-loop accuracy
• Hadronic production of a Higgs boson and two jets at next-to-leading order
• One-loop phi-MHV amplitudes using the unitarity bootstrap
• Electroweak Bloch-Nordsieck violation at the TeV scale: "strong" weak interactions ?
• Uncertainties in NLO + parton shower matched simulations of inclusive jet and dijet production
• Higher-order QED corrections to W-boson mass determination at hadron colliders
• Two-Loop Electroweak Logarithms in Four-Fermion Processes at High Energy
• Analytic one-loop amplitudes for a Higgs boson plus four partons
• One-loop Higgs plus four gluon amplitudes: Full analytic results
• NLO QCD corrections to the production of Higgs plus two jets at the LHC
• Loop induced interference effects in Higgs Boson plus two jet production at the LHC
• Higgs Boson Production in Association with Three Jets
• Cross Section Ratios between different CM energies at the LHC: opportunities for precision measurements and BSM sensitivity
• Semi-Numerical Evaluation of One-Loop Corrections
• Top quark pair production in association with a jet with NLO parton showering
• Two-loop electroweak next-to-leading logarithmic corrections to massless fermionic processes
• Signal-background interference effects for $gg\to H\to W^{+}{W}^{-}$ beyond leading order
• Logarithmic electroweak corrections to hadronic Z+1 jet production at large transverse momentum
• NLO EW and QCD proton-proton cross section calculations with mcsanc-v1.01
• Recursive Construction of Higgs-Plus-Multiparton Loop Amplitudes: The Last of the Phi-nite Loop Amplitudes
• Inclusive Higgs boson cross-section for the LHC at 8 TeV
• Electroweak higher-order effects and theoretical uncertainties in deep-inelastic neutrino scattering
• Logarithmic expansion of electroweak corrections to four-fermion processes in the TeV region
• Optimising Code Generation with haggies
• Reducing theoretical uncertainties for exclusive Higgs plus one-jet production at the LHC
• Combining NLO QCD and Electroweak Radiative Corrections to W boson Production at Hadron Colliders in the POWHEG Framework
• Width and Partial Widths of Unstable Particles in the Light of the Nielsen Identities
• Mixed QCD-electroweak contributions to Higgs-plus-dijet production at the LHC
• The Factorisation of the t-channel Pole in Quark-Gluon Scattering
• Electroweak corrections to large transverse momentum production of W bosons at the LHC
• Electroweak Absorptive Parts in NRQCD Matching Conditions
• Virtual QCD corrections to Higgs boson plus four parton processes
• Scale dependence and collinear subtraction terms for Higgs production in gluon fusion at N3LO
• Event Generation from Effective Field Theory
• Narrow-width approximation limitations
• Precise QCD predictions for the production of a photon pair in association with two jets
• Four-fermion production near the W pair production threshold
• Z0 - boson production in association with a top anti-top pair at NLO accuracy with parton shower effects
• Bloch-Nordsieck Violation in Spontaneously Broken Abelian Theories
• One-loop phi-MHV amplitudes using the unitarity bootstrap: the general helicity case
• Resummation of angular dependent corrections in spontaneously broken gauge theories
• Disentangling radiative corrections using high-mass Drell-Yan at the LHC
• Weak corrections to four-parton processes
• NNLO Benchmarks for Gauge and Higgs Boson Production at TeV Hadron Colliders
• PDF dependence of Higgs cross sections at the Tevatron and LHC: response to recent criticism
• Isolating Prompt Photons with Narrow Cones
• Combined Effect of QCD Resummation and QED Radiative Correction to W boson Observables at the Tevatron
• The Importance of Weak Bosons Emission at LHC
• Charm quark mass dependence in a global QCD analysis
• Electroweak Sudakov Logarithms and Real Gauge-Boson Radiation in the TeV Region
• Ratios of $W$ and $Z$ cross sections at large boson $p_T$ as a constraint on PDFs and background to new physics
• Electroweak corrections to hadronic event shapes and jet production in e+e- annihilation
• One-loop weak corrections to $\gamma /Z$ hadro-production at finite transverse momentum
• Using gamma+jets Production to Calibrate the Standard Model Z(nunu)+jets Background to New Physics Processes at the LHC
• A New Framework for Multijet Predictions and its application to Higgs Boson production at the LHC
• QED Bremsstrahlung in decays of electroweak bosons
• Logarithmic electroweak corrections to e+ e- -> nue anti-nue W+ W-
• Parametrization dependence and Delta Chi-squared in parton distribution fitting
• HepData reloaded: reinventing the HEP data archive
• Gaining analytic control of parton showers
• NLO event samples for the LHC
• Recursive prescription for logarithmic jet rate coefficients

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• PDF4LHC recommendations for LHC Run II
• Collier: a fortran-based Complex One-Loop LIbrary in Extended Regularizations
• OpenLoops 2
• A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
• Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• The automation of next-to-leading order electroweak calculations
• Classification without labels: Learning from mixed samples in high energy physics
• Automatic evaluation of UV and R2 terms for beyond the Standard Model Lagrangians: a proof-of-principle
• Recola2: REcursive Computation of One-Loop Amplitudes 2
• Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV
• Precision measurement and interpretation of inclusive $W^{+}$, $W^{-}$ and $Z/{\gamma }^{\ast }$ production cross sections with the ATLAS detector
• The PDF4LHC21 combination of global PDF fits for the LHC Run III
• Performance of reconstruction and identification of $\tau$ leptons decaying to hadrons and ${\nu }_{\tau }$ in pp collisions at $\sqrt{s}=$ 13 TeV
• New Angles on Energy Correlation Functions
• QCD NLO and EW NLO corrections to $t\bar{t}H$ production with top quark decays at hadron collider
• Systematics of quark/gluon tagging
• HAWK 2.0: A Monte Carlo program for Higgs production in vector-boson fusion and Higgs strahlung at hadron colliders
• The PDF4LHC report on PDFs and LHC data: Results from Run I and preparation for Run II
• A Critical Appraisal and Evaluation of Modern PDFs
• Parton Shower Uncertainties in Jet Substructure Analyses with Deep Neural Networks
• Mining for Gluon Saturation at Colliders
• Automated Parton-Shower Variations in Pythia 8
• A GPU compatible quasi-Monte Carlo integrator interfaced to pySecDec
• Measurements of $WH$ and $ZH$ production in the $H\to b\bar{b}$ decay channel in $pp$ collisions at 13 TeV with the ATLAS detector
• Dominant mixed QCD-electroweak $\mathcal{O}({\alpha }_s\alpha )$ corrections to Drell-Yan processes in the resonance region
• Measurement of the Higgs boson mass in the $H\to Z{Z}^{\ast }\to 4\ell$ and $H\to \gamma \gamma$ channels with $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
• A study of jet mass distributions with grooming
• Higgs boson production cross-section measurements and their EFT interpretation in the $4\ell$ decay channel at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Trilinear Higgs coupling determination via single-Higgs differential measurements at the LHC
• Triple collinear emissions in parton showers
• The HepMC3 Event Record Library for Monte Carlo Event Generators
• NLO electroweak corrections to off-shell top-antitop production with leptonic decays at the LHC
• Constraining new physics from Higgs measurements with Lilith: update to LHC Run 2 results
• Precision Studies of Observables in pp->W->l nu and pp->gamma,Z->l+l- processes at the LHC
• Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at sqrt(s) = 7 TeV
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• Heavy Higgs Bosons at 14 TeV and 100 TeV
• Standard Model Theory for the FCC-ee Tera-Z stage
• NLO QCD and electroweak corrections to $Z+\gamma$ production with leptonic Z-boson decays
• Measurements of the Higgs boson inclusive and differential fiducial cross sections in the 4$\ell$ decay channel at $\sqrt{s}$ = 13 TeV
• Soft drop groomed jet angularities at the LHC
• Measurement of jet substructure observables in $\mathrm{t}\overline{\mathrm{t}}$ events from proton-proton collisions at $\sqrt{s}=$ 13TeV
• Reweighting Parton Showers
• Quark-Gluon tagging with Shower Deconstruction: Unearthing dark matter and Higgs couplings
• Search for a W' boson decaying to a $\tau$ lepton and a neutrino in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Lund jet images from generative and cycle-consistent adversarial networks
• Parton Shower Uncertainties with Herwig 7: Benchmarks at Leading Order
• Off-shell production of top-antitop pairs in the lepton+jets channel at NLO QCD
• Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Simplified Template Cross Sections -- Stage 1.1 and 1.2
• Dichroic subjettiness ratios to distinguish colour flows in boosted boson tagging
• Study of weak corrections to Drell-Yan, top-quark pair and dijet Production at high energies with MCFM
• A non-linear EFT description of $gg\to HH$ at NLO interfaced to POWHEG
• An event generator for same-sign W-boson scattering at the LHC including electroweak corrections
• Indirect $\mathcal{C}\mathcal{P}$ probes of the Higgs-top-quark interaction: current LHC constraints and future opportunities
• Why ${\alpha }_s$ Cannot be Determined from Hadronic Processes without Simultaneously Determining the Parton Distributions
• Measurement of $VH$, $H\to b\bar{b}$ production as a function of the vector-boson transverse momentum in 13 TeV $pp$ collisions with the ATLAS detector
• Jet angularity measurements for single inclusive jet production
• Jet cross sections at the LHC and the quest for higher precision
• Measurement of fiducial differential cross sections of gluon-fusion production of Higgs bosons decaying to $W{W}^{\ast }\to e\nu \mu \nu$ with the ATLAS detector at $\sqrt{s}=8$ TeV
• Diphoton production at Tevatron and the LHC in the NLO* approximation of the Parton Reggeization Approach
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• Radiative Return Capabilities of a High-Energy, High-Luminosity $e^{+}{e}^{-}$ Collider
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