Recognition: 1 theorem link
The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
Pith reviewed 2026-05-11 12:46 UTC · model grok-4.3
The pith
A unified framework automates tree-level and next-to-leading order differential cross sections along with parton-shower matching and sample merging.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
A computer program handles parton-level fixed-order calculations, shower-matched results, and merged samples in a single framework whose defining features are flexibility, high parallelisation, and limitation of human intervention to input physics quantities. While next-to-leading order results are at first restricted to QCD corrections for standard-model processes, the user viewpoint requires no changes for corrections arising from any given renormalisable Lagrangian, and the implementation of those extensions is already under way.
What carries the argument
The unified automation framework that generates matrix elements, performs phase-space integration, applies parton-shower matching, and merges samples of differing light-parton multiplicity.
If this is right
- Differential cross sections at next-to-leading order can be obtained and matched to parton showers for arbitrary processes with only physics input from the user.
- Samples with different light-parton multiplicities can be merged consistently within the same run.
- The identical workflow applies once non-QCD corrections from any renormalisable Lagrangian are incorporated.
- Large-scale parallel execution becomes available for collider phenomenology studies without additional user coding.
- Fixed-order, matched, and merged results are produced under one consistent interface.
Where Pith is reading between the lines
- The same automation pattern could be extended to higher perturbative orders or to electroweak corrections once those modules are completed.
- Experimental groups might incorporate the framework directly into analysis chains to generate theory predictions on demand.
- Model builders could test new renormalisable interactions against collider data with far less computational overhead than before.
- The reduction in manual setup time would allow more rapid iteration between theoretical proposals and numerical comparisons with data.
Load-bearing premise
Automation for any given renormalisable Lagrangian can be achieved without requiring the user to alter the program or its interface.
What would settle it
An explicit next-to-leading-order calculation for a chosen standard-model process that the program produces and that differs from an independent analytic or numerical result by more than the expected perturbative uncertainty.
read the original abstract
We discuss the theoretical bases that underpin the automation of the computations of tree-level and next-to-leading order cross sections, of their matching to parton shower simulations, and of the merging of matched samples that differ by light-parton multiplicities. We present a computer program, MadGraph5_aMC@NLO, capable of handling all these computations -- parton-level fixed order, shower-matched, merged -- in a unified framework whose defining features are flexibility, high level of parallelisation, and human intervention limited to input physics quantities. We demonstrate the potential of the program by presenting selected phenomenological applications relevant to the LHC and to a 1-TeV $e^+e^-$ collider. While next-to-leading order results are restricted to QCD corrections to SM processes in the first public version, we show that from the user viewpoint no changes have to be expected in the case of corrections due to any given renormalisable Lagrangian, and that the implementation of these are well under way.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The manuscript presents the MadGraph5_aMC@NLO computer program for the automated computation of tree-level and next-to-leading order (NLO) differential cross sections, their matching to parton shower simulations, and the merging of matched samples that differ by light-parton multiplicities. It discusses the theoretical bases for these computations and demonstrates the program's capabilities through selected phenomenological applications relevant to the LHC and a 1-TeV e+e- collider. The framework is designed to be flexible and highly parallelized, with human intervention limited to input physics quantities. While the first public version restricts NLO results to QCD corrections for Standard Model processes, the design ensures that extensions to corrections from any renormalizable Lagrangian require no changes from the user perspective, with such implementations noted as being under development.
Significance. This work holds significant value for the field of high-energy physics phenomenology by providing a unified, automated framework that integrates fixed-order calculations, parton-shower matching, and merging techniques. The modular separation between model input in UFO format and the computation engines (such as FKS subtraction for NLO) supports the claim of broad applicability with minimal user effort. By demonstrating applications on LHC and e+e- examples, the paper illustrates practical utility for collider physics. The high level of parallelization and automation of established methods like MC@NLO matching and MLM-style merging enhances efficiency in generating predictions for complex processes. If the implementation details in the full manuscript validate the claims, this tool would substantially lower the barrier for performing state-of-the-art calculations.
minor comments (1)
- [Abstract] Abstract: the statement that 'the implementation of these are well under way' for non-QCD corrections could be clarified with a timeline or specific status to better inform readers about the current capabilities.
Simulated Author's Rebuttal
We thank the referee for the positive assessment of our manuscript and the recommendation to accept it for publication.
Circularity Check
No significant circularity in implementation description
full rationale
The paper describes the design and capabilities of the MadGraph5_aMC@NLO program for automating tree-level, NLO QCD, MC@NLO matching, and MLM merging computations. Its central claims concern software architecture (UFO model input, FKS subtraction, modular separation of physics input from computation engine) and are supported by explicit code structure and example applications rather than any derivation chain. No equations, predictions, or uniqueness theorems are presented that reduce by construction to fitted parameters, self-definitions, or self-citation load-bearing steps. The statement that extensions to arbitrary renormalisable Lagrangians require no user changes is framed as a realised design property, not a derived result. The work is self-contained against external benchmarks of established methods.
Axiom & Free-Parameter Ledger
axioms (1)
- domain assumption QCD corrections to Standard Model processes can be computed via known automated techniques
Forward citations
Cited by 60 Pith papers
-
Search for single vector-like quark production in opposite-sign dilepton final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No excess observed in search for vector-like top quark T to tH in opposite-sign dilepton final states; 95% CL upper limits on sigma times BR range from 2.0 pb at 600 GeV to 0.1 pb at 1000 GeV.
-
Generative models on phase space
Generative diffusion and flow models are constructed to remain exactly on the Lorentz-invariant massless N-particle phase space manifold during sampling for particle physics applications.
-
Logarithmically-accurate showers with massive quarks
PanScales final-state showers now include quark masses at NLL accuracy while keeping original accuracy for massless observables.
-
Collider-Bench: Benchmarking AI Agents with Particle Physics Analysis Reproduction
Collider-Bench is a new benchmark showing that current LLM agents cannot reliably reproduce LHC analyses at the level of a physicist-in-the-loop.
-
Probing Boosted Light Scalars in the Type-I 2HDM
Boosted light scalars decaying to b b-bar in Type-I 2HDM can be tagged as double-b fat-jets and used with SM gauge bosons to probe heavy scalars up to 540 GeV at the HL-LHC for masses 30-70 GeV.
-
Decaying spin-3/2 dark matter from baryon number violation
Non-supersymmetric spin-3/2 dark matter with baryon-violating portals can explain the relic abundance through UV and Boltzmann-suppressed freeze-in, with viable parameter space constrained by indirect detection, direc...
-
Differential measurements of $\gamma\gamma\to\tau\tau$ and constraints on $\tau$-lepton electromagnetic moments in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV with ATLAS
First differential cross-sections for γγ→ττ in Pb+Pb collisions yield 95% CL intervals -0.057 < a_τ < 0.035 and |d_τ| < 2.7×10^{-16} e cm.
-
Search for Long-Lived Dark Photons from Dark Radiation at the LHC
Dark radiation from dark matter produced in Z decays generates long-lived dark photons that dominate over meson decays and bremsstrahlung for small kinetic mixing and masses above the GeV scale, allowing FASER2, FACET...
-
Cascade Pipeline for Leading-Order Matrix Element Evaluation on AMD Versal AI Engine Arrays
A cascade pipeline architecture on AMD Versal AI Engine tiles projects 1 million matrix element evaluations per second at 54.8 W for gg→ttg, delivering 34× CPU speedup and 7.7× better energy efficiency with parts-per-...
-
Big Dipper, Help Me Find A Way -- Dip-hunting at hadron colliders
Parametric neural networks learn likelihood ratios to infer top-philic scalar resonances from dip patterns caused by signal-background interference in hadron collider data.
-
Evidence of ZZ$\gamma$ production and observation of $4\ell\gamma$ in proton-proton collisions at $\sqrt{s}$ = 13 TeV
First evidence for ZZ gamma production at 3.7 sigma and observation of 4 lepton gamma at 5.0 sigma in CMS data at 13 TeV, with measured fiducial cross sections consistent with predictions.
-
Many Wrongs Make a Right: Leveraging Biased Simulations Towards Unbiased Parameter Inference
Template-Adapted Mixture Model uses many biased simulations for data-driven estimates of signal and background distributions, yielding unbiased signal fraction estimates with well-calibrated uncertainties.
-
Probing compressed triplet scalars with ISR jets and soft leptons at the LHC
A cut-and-count analysis exploiting ISR jets and soft leptons can reach discovery sensitivity for compressed triplet scalars with 1-30 GeV splittings at 3000 fb^{-1}.
-
NLO QCD and parton-shower effects for Higgs-boson production in association with a hard photon via vector-boson fusion
NLO QCD plus parton-shower matched implementation for VBF Higgs plus photon production, with studies showing small shower effects on Higgs observables and larger effects on sub-leading jets.
-
SMEFT everywhere: a NLO study of $\boldsymbol{pp \to t\bar{t}H}$ with decaying tops
NLO QCD corrections to pp to ttbar H in the di-lepton channel with SMEFT operators included in both production and top-quark decays.
-
Composite top partners in exotic colour representations
Colour-sextet top partners in composite Higgs models are excluded up to 2-2.5 TeV by current LHC data via top-rich decays, with HL-LHC reach near 3 TeV.
-
Bounds on massive graviton-like particles from searches for axion-like particles coupling to photons
Limits on axion-like particles from photon-coupling searches are recast as constraints on massive graviton-like particles across lab, astrophysical, and cosmological experiments using analogous Primakoff and Gertsensh...
-
How Invisible: Regressing The Key Model Parameter for Semi-visible Jet Searches
A regression model reconstructs the key parameter r_inv for semi-visible jets at higher precision than prior analytical methods and may unify s- and t-channel production searches.
-
Low-Multiplicity Jets as Probes of GeV-Scale Light-Quark-Coupled Particles
A proposed LHC search using low-multiplicity jets plus a photon can extend sensitivity to GeV-scale particles that couple to light quarks.
-
Tree Amplitudes with Charged Matter in Pure Gauge Theory
A new Mathematica package computes tree amplitudes with arbitrary gauge bosons and arbitrarily charged massless fermions by reducing distinct-flavor partial amplitudes to linear combinations of single-flavor supersymm...
-
Radiation effects on the entanglement of fermion pairs at colliders
Energetic radiation induces decoherence that significantly reduces entanglement in fermion pairs at colliders, with statistically significant signals observable in ttbar(g) at the LHC and tau pairs at Belle II.
-
Operator Identification in Charged Lepton-Flavor Violation: Global EFT Analysis with RG Evolution, Polarization Observables, and Bayesian Model Discrimination at Future Colliders
Global EFT analysis of charged lepton-flavor violation at future colliders incorporates RG running, polarization, and Bayesian discrimination to identify operators, finding 10-30% shifts from tree-level mappings at mu...
-
SemiCharmTag: a tool for Semileptonic Charm tagging
SemiCharmTag achieves a factor of ~4 signal-over-background improvement at 81% efficiency for Drell-Yan muons using secondary-vertex hadron tagging in LHCb proton-proton collision simulations.
-
Probing Higgs and Top Interactions through the Muon Lens at multi-TeV Muon Colliders
A 10 TeV muon collider could improve existing bounds on muon-Higgs-gauge and muon-top interactions by up to an order of magnitude over current limits and FCC-ee projections.
-
A Determination of the Top Mass from a Global PDF Analysis
The top-quark pole mass is determined to be 172.80 ± 0.26 GeV from a global NNPDF analysis at approximate N³LO QCD including NLO QED, EW, and toponium corrections.
-
Heavy Vector Triplets at a Muon Collider
Muon colliders can probe heavy vector triplets up to 12 TeV, competitive with HE-LHC but below FCC-hh projections, including indirect electroweak precision limits.
-
Dark photon searches in the photon channel
GEANT4 simulations indicate that photon spectral shape differences from pion decays in a tungsten foil setup could probe new dark photon parameter space with feasible proton beam runs.
-
Search for pair production of additional neutral scalars within the Inert Doublet Model in a final state with two electrons or two muons in proton-proton collisions at $\sqrt{s}$ = 13 TeV and 13.6 TeV
No significant excess found; new exclusion limits reach m_H = 108 GeV for m_H - m_A = 78 GeV in the Inert Doublet Model.
-
Time-dependent signals of new physics at the LHC
Incorporating timing information from time-dependent new physics signals can improve LHC search sensitivity by up to a factor of two compared to standard time-invariant analyses.
-
Electroweak Restoration: SMEFT and HEFT
High-energy amplitude ratios for longitudinal di-boson production approach unity in the SM and dimension-6 SMEFT but not necessarily in HEFT, making the W±_L Z_L to W±_L h cross section ratio a promising discriminator...
-
Cascade Pipeline for Leading-Order Matrix Element Evaluation on AMD Versal AI Engine Arrays
A cascade pipeline on 400 AIE tiles evaluates gg→ttg leading-order matrix elements at 1 million per second with parts-per-million accuracy to MadGraph, delivering 34× CPU speedup and 7.7× better energy efficiency at 54.8 W.
-
New insights into the $b\rightarrow c \bar{u}q$ puzzle through Top-Bottom synergies
Anomalies in b to c u-bar q transitions remain puzzling as proposed new physics scenarios involving SU(2) doublets are not significantly relaxed by collider dilution or factorization breakdown.
-
Can LLP detectors probe the reheating temperature? A case study of vector dark matter
In a vector dark matter extension of the Higgs portal, far detectors at colliders can probe otherwise inaccessible parameter space and set novel bounds on the reheating temperature.
-
Kitchen Sink Anomaly Detection
A combined kitchen sink observable set of Energy Flow Polynomials and subjettiness variables outperforms standard baselines in sensitivity to a wide range of resonant signals, with new public benchmarks released and a...
-
The KM3NeT event: a primordial high energy neutrino?
The KM3NeT neutrino event may be a primordial neutrino from relic particle decay or annihilation near recombination, yielding a narrow spectral peak that evades broad power-law constraints from other telescopes.
-
New Physics Reach through Precision at Future Colliders: a Multi-Pronged Approach
Future e+e- colliders can constrain new physics through precision Higgs and electroweak measurements in Higgs-coupling, EFT, and SMEFT frameworks, with updated SMEFiT code released.
-
Quantum Tomography and Entanglement in Semi-Leptonic $h\to VV^*$ Decays at Higher Orders
Semi-leptonic h to VV* decays retain an effective two-qutrit description for quantum tomography and entanglement after including finite fermion masses and NLO corrections.
-
Electro-Weak Phase Transitions and Collider Signals in the Aligned 2-Higgs Doublet Model
The Aligned 2HDM supports strong first-order electroweak phase transitions that yield LISA-detectable gravitational waves together with LHC-accessible signals from additional neutral and charged Higgs states.
-
LHC signatures of a light pseudoscalar in a flipped two-Higgs scenario: the usefulness of boosted $b{\bar b}$ pairs
Boosted di-b-jet tagging plus BDT analysis yields 5-10 sigma significance for a light pseudoscalar in flipped 2HDM with 3 ab^{-1} including 10% systematics.
-
Higgs production in association with a Z boson at TeV-scale lepton colliders
At TeV lepton colliders the neutrino-associated Zh production cross section surpasses direct Zh production above a few TeV, with interference patterns made interpretable by the Feynman-diagram gauge.
-
Electroweak phase transitions in a $U(1)_D$ extension of the standard model with dimension-six operators: Gravitational waves and LHC signatures
A dimension-six operator |H|^2|phi|^4 in a U(1)_D singlet extension relaxes the usual Higgs-portal and mixing-angle correlation, enabling strong first-order electroweak phase transitions driven primarily by the singlet VEV.
-
Constraints on anomalous Higgs boson couplings to vector bosons and fermions using the $\gamma\gamma$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Updated constraints from the full Run 2 dataset show no evidence for anomalous Higgs couplings in gluon fusion, vector boson fusion, and associated production modes decaying to two photons.
-
Search for charginos and neutralinos with $B-L$ $R$-parity violating decays in $\sqrt{s}=13$ TeV and $13.6$ TeV $pp$ collisions with the ATLAS detector
No evidence for charginos and neutralinos in R-parity violating Higgs-decay channels; masses 150-1100 GeV excluded at 95% CL assuming equal lepton branching fractions.
-
Distinguishing Higgs portal and neutralino dark matter via vector boson fusion
Vector boson fusion processes at the LHC distinguish Higgs portal dark matter from neutralino dark matter at over 5 sigma using jet kinematics and a Kolmogorov-Smirnov test with linear discriminant analysis.
-
Phenomenology of electroweak spin-1 resonances
Composite Higgs models with SU(2)_L × SU(2)_R predict spin-1 resonances mixing with electroweak bosons that remain viable at the LHC down to masses of about 1.5 TeV.
-
Multi-Lepton Probes of the Drell-Yan Production of Triplet Higgses
The ΔSM real Higgs triplet model is consistent with LHC triboson excesses but predicts more events than observed and is not preferred over the Standard Model.
-
Same-Sign Tetralepton Signature at $\mu$TRISTAN
The paper identifies promising parameter regions for observing same-sign tetralepton events from charged Higgs pair and single production decaying to muons and heavy neutral leptons at μTRISTAN.
-
Mono-Z' Signatures in the B-L Supersymmetric Standard Model at the LHC
Mono-Z' events from Z' plus singlet Higgs production in the BLSSM-IS, with h' decaying to LSP dark matter pairs, yield a detectable leptonic signal independent of the specific DM candidate.
-
Search for quantum black holes in lepton+jet final states using proton-proton collisions at $\sqrt{s}=13.6$ TeV with the ATLAS detector
No significant excess of high-mass lepton+jet events is observed in 164 fb^{-1} of 13.6 TeV pp collisions, setting 95% CL upper limits on quantum black hole production cross-section times branching ratio that reach a ...
-
Probing Flavor-Violating Higgs Decays in the Type-III Two-Higgs-Doublet Model at the LHC and HL-LHC
In the Type-III 2HDM, neutral and heavy charged flavor-violating Higgs decays can exceed 5 sigma significance at 300 fb^{-1} luminosity while the light charged mode is more background-limited.
-
Probing inelastic sub-GeV dark matter at the DUNE near detector
DUNE's ND-LAr can probe sub-GeV inelastic dark matter parameter space consistent with relic abundance via dark Higgs-mediated annihilation, especially at large dark photon-to-DM mass ratios.
-
The $Z_3$ soft breaking in the I(2+1)HDM and its cosmological probes
Soft Z3 breaking in the I(2+1)HDM makes the lightest Z3-charged neutral scalar a dark matter candidate while allowing a long-lived opposite-CP state to contribute to relic density or yield missing-energy plus multi-le...
-
Exploring new resonances with direct top flavor changing interactions
Three new physics resonances with top flavor-changing couplings are mapped to SMEFT operators at the electroweak scale and their phenomenology is analyzed.
-
Sensitivity to top-quark FCNC interactions at future muon colliders
A 10 TeV muon collider with 10 ab^{-1} could reach O(10^{-3}) sensitivity on top-quark FCNC couplings, improving current ATLAS/CMS bounds by more than an order of magnitude.
-
Exotic Higgs Decays at a Muon Collider
Muon colliders at 3 TeV and 10 TeV can probe branching ratios for h to SS decays in 4b and 2b2μ channels down to 10^{-3}–10^{-5}, improving on HL-LHC projections using machine learning.
-
Probing Heavy Neutral Higgs Bosons via Single Vector-Like Bottom Quark Production at the HL-LHC
XGBoost multivariate analysis extends the 5-sigma discovery reach for singly produced vector-like bottom quarks decaying via heavy neutral Higgs bosons to 1.6 TeV at the HL-LHC with 3 ab^{-1}.
-
An Introduction to PYTHIA 8.2
PYTHIA 8.2 is a mature C++ event generator that combines hard processes, parton showers, multiparton interactions, and string fragmentation into a complete simulation framework for high-energy collisions.
-
Search for new physics in triple boson production in proton-proton collisions at $\sqrt{s}$ = 13 TeV using the effective field theory approach
No excess in VVV production; bounds set on c_W/Λ² (-0.13 to 0.12 TeV^{-2}) and c_Hq3/Λ² (-0.24 to 0.21 TeV^{-2}) at 95% CL.
-
Possibility of Probing an Extra Higgs Boson at the Compact Linear Collider
CLIC can probe an additional neutral Higgs boson H in the Two Higgs Doublet Model through the process e+e- to H nu nu-bar with H decaying to WW in the dilepton channel.
-
Jarvis-HEP: A lightweight Python framework for workflow composition and parameter scans in high-energy physics
Jarvis-HEP introduces a YAML-based Python framework for composing workflows and performing parameter scans in high-energy physics.
Reference graph
Works this paper leans on
-
[1]
D. J. Gross and F. Wilczek, Ultraviolet Behavior of Nonabelian Gauge Theories , Phys.Rev.Lett. 30 (1973) 1343–1346
work page 1973
-
[2]
H. D. Politzer, Reliable Perturbative Results for Strong Interactions? , Phys.Rev.Lett. 30 (1973) 1346–1349
work page 1973
-
[3]
T. Appelquist and H. Georgi, e+e− annihilation in gauge theories of strong interactions , Phys.Rev. D8 (1973) 4000–4002
work page 1973
-
[4]
G. F. Sterman and S. Weinberg, Jets from Quantum Chromodynamics , Phys.Rev.Lett. 39 (1977) 1436
work page 1977
- [5]
-
[6]
W. A. Bardeen, A. Buras, D. Duke, and T. Muta, Deep Inelastic Scattering Beyond the Leading Order in Asymptotically Free Gauge Theories , Phys.Rev. D18 (1978) 3998
work page 1978
-
[7]
G. Altarelli, R. K. Ellis, and G. Martinelli, Leptoproduction and Drell-Yan Processes Beyond the Leading Approximation in Chromodynamics , Nucl.Phys. B143 (1978) 521
work page 1978
-
[8]
W. Celmaster and R. J. Gonsalves, Fourth Order QCD Contributions to the e+e− Annihilation Cross-Section, Phys.Rev. D21 (1980) 3112
work page 1980
-
[9]
R. K. Ellis, D. Ross, and A. Terrano, The Perturbative Calculation of Jet Structure in e+e− Annihilation, Nucl.Phys. B178 (1981) 421
work page 1981
-
[10]
S. Frixione, Z. Kunszt, and A. Signer, Three jet cross-sections to next-to-leading order , Nucl.Phys. B467 (1996) 399–442, [ hep-ph/9512328]
-
[11]
S. Catani and M. Seymour, A General algorithm for calculating jet cross-sections in N LO QCD, Nucl.Phys. B485 (1997) 291–419, [ hep-ph/9605323]
-
[12]
Frixione, A general approach to jet cross sections in QCD , Nucl
S. Frixione, A General approach to jet cross-sections in QCD , Nucl.Phys. B507 (1997) 295–314, [ hep-ph/9706545]
- [13]
- [14]
-
[15]
Z. Bern, L. J. Dixon, D. C. Dunbar, and D. A. Kosower, One-loop n-point gauge theory amplitudes, unitarity and collinear limits , Nucl.Phys. B425 (1994) 217–260, [hep-ph/9403226]. – 138 –
work page Pith review arXiv 1994
-
[16]
F. del Aguila and R. Pittau, Recursive numerical calculus of one-loop tensor integrals , JHEP 0407 (2004) 017, [ hep-ph/0404120]
- [17]
- [18]
-
[19]
C. Anastasiou, R. Britto, B. Feng, Z. Kunszt, and P. Mastrolia , D-dimensional unitarity cut method, Phys.Lett. B645 (2007) 213–216, [ hep-ph/0609191]
-
[20]
C. Anastasiou, R. Britto, B. Feng, Z. Kunszt, and P. Mastrolia , Unitarity cuts and Reduction to master integrals in d dimensions for one-loop a mplitudes, JHEP 0703 (2007) 111, [ hep-ph/0612277]
- [21]
- [22]
- [23]
-
[24]
Scattering Amplitudes with Open Loops
F. Cascioli, P. Maierhofer, and S. Pozzorini, Scattering Amplitudes with Open Loops , Phys.Rev.Lett. 108 (2012) 111601, [ arXiv:1111.5206]
work page Pith review arXiv 2012
-
[25]
P. Mastrolia, E. Mirabella, and T. Peraro, Integrand reduction of one-loop scattering amplitudes through Laurent series expansion , JHEP 1206 (2012) 095, [ arXiv:1203.0291]
-
[26]
Matching NLO QCD computations and parton shower simulations
S. Frixione and B. R. Webber, Matching NLO QCD computations and parton shower simulations, JHEP 0206 (2002) 029, [ hep-ph/0204244]
work page Pith review arXiv 2002
-
[27]
A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
P. Nason, A New method for combining NLO QCD with shower Monte Carlo alg orithms, JHEP 0411 (2004) 040, [ hep-ph/0409146]
work page internal anchor Pith review Pith/arXiv arXiv 2004
-
[28]
M. Dobbs, Incorporating next-to-leading order matrix elements for h adronic diboson production in showering event generators , Phys.Rev. D64 (2001) 034016, [ hep-ph/0103174]
- [29]
-
[30]
Y. Kurihara, J. Fujimoto, T. Ishikawa, K. Kato, S. Kawabata, et al., QCD event generators with next-to-leading order matrix elements and parton show ers, Nucl.Phys. B654 (2003) 301–319, [ hep-ph/0212216]
-
[31]
Z. Nagy and D. E. Soper, Matching parton showers to NLO computations , JHEP 0510 (2005) 024, [ hep-ph/0503053]
- [32]
-
[33]
Z. Nagy and D. E. Soper, Parton showers with quantum interference , JHEP 0709 (2007) 114, [ arXiv:0706.0017]
- [34]
- [35]
-
[36]
A critical appraisal of NLO+PS matching methods
S. Hoeche, F. Krauss, M. Schonherr, and F. Siegert, A critical appraisal of NLO+PS matching methods, JHEP 1209 (2012) 049, [ arXiv:1111.1220]
work page Pith review arXiv 2012
-
[37]
K. Hamilton, P. Nason, E. Re, and G. Zanderighi, NNLOPS simulation of Higgs boson production, JHEP 1310 (2013) 222, [ arXiv:1309.0017]
-
[38]
J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer, and T. Stelzer, MadGraph 5 : Going Beyond, JHEP 1106 (2011) 128, [ arXiv:1106.0522]
work page Pith review arXiv 2011
-
[39]
Automatic Generation of Tree Level Helicity Amplitudes
T. Stelzer and W. Long, Automatic generation of tree level helicity amplitudes , Comput.Phys.Commun. 81 (1994) 357–371, [ hep-ph/9401258]
work page Pith review arXiv 1994
-
[40]
F. Caravaglios and M. Moretti, An algorithm to compute Born scattering amplitudes without Feynman graphs, Phys.Lett. B358 (1995) 332–338, [ hep-ph/9507237]
- [41]
-
[42]
A. Kanaki and C. G. Papadopoulos, HELAC: A Package to compute electroweak helicity amplitudes, Comput.Phys.Commun. 132 (2000) 306–315, [ hep-ph/0002082]
-
[43]
M. Moretti, T. Ohl, and J. Reuter, O’Mega: An Optimizing matrix element generator , hep-ph/0102195
work page internal anchor Pith review arXiv
- [44]
- [45]
-
[46]
J. Fujimoto, T. Ishikawa, M. Jimbo, T. Kaneko, K. Kato, et al., GRACE/SUSY automatic generation of tree amplitudes in the minimal supersymmetri c standard model , Comput.Phys.Commun. 153 (2003) 106–134, [ hep-ph/0208036]
-
[47]
Boos et al., CompHEP 4.4: Automatic computations from Lagrangians to events , Nucl.Instrum.Meth
CompHEP Collaboration, E. Boos et al., CompHEP 4.4: Automatic computations from Lagrangians to events , Nucl.Instrum.Meth. A534 (2004) 250–259, [ hep-ph/0403113]
- [48]
-
[49]
A. Cafarella, C. G. Papadopoulos, and M. Worek, Helac-Phegas: A Generator for all parton level processes, Comput.Phys.Commun. 180 (2009) 1941–1955, [ arXiv:0710.2427]
-
[50]
WHIZARD: Simulating Multi-Particle Processes at LHC and ILC
W. Kilian, T. Ohl, and J. Reuter, WHIZARD: Simulating Multi-Particle Processes at LHC and ILC , Eur.Phys.J. C71 (2011) 1742, [ arXiv:0708.4233]
work page Pith review arXiv 2011
-
[51]
MadGraph/MadEvent v4: The New Web Generation
J. Alwall, P. Demin, S. de Visscher, R. Frederix, M. Herquet, et a l., MadGraph/MadEvent v4: The New Web Generation , JHEP 0709 (2007) 028, [ arXiv:0706.2334]
work page Pith review arXiv 2007
-
[52]
T. Gleisberg and S. Hoeche, Comix, a new matrix element generator , JHEP 0812 (2008) 039, [ arXiv:0808.3674]. – 140 –
-
[53]
CalcHEP 3.4 for collider physics within and beyond the Standard Model
A. Belyaev, N. D. Christensen, and A. Pukhov, CalcHEP 3.4 for collider physics within and beyond the Standard Model , Comput.Phys.Commun. 184 (2013) 1729–1769, [arXiv:1207.6082]
work page Pith review arXiv 2013
-
[54]
T. Hahn and M. Perez-Victoria, Automatized one loop calculations in four-dimensions and D-dimensions, Comput.Phys.Commun. 118 (1999) 153–165, [ hep-ph/9807565]
-
[55]
Generating Feynman Diagrams and Amplitudes with FeynArts 3
T. Hahn, Generating Feynman diagrams and amplitudes with FeynArts 3 , Comput.Phys.Commun. 140 (2001) 418–431, [ hep-ph/0012260]
work page Pith review arXiv 2001
-
[56]
T. Gleisberg and F. Krauss, Automating dipole subtraction for QCD NLO calculations , Eur.Phys.J. C53 (2008) 501–523, [ arXiv:0709.2881]
- [57]
-
[58]
R. Frederix, T. Gehrmann, and N. Greiner, Automation of the Dipole Subtraction Method in MadGraph/MadEvent, JHEP 0809 (2008) 122, [ arXiv:0808.2128]
-
[59]
W. Giele and G. Zanderighi, On the Numerical Evaluation of One-Loop Amplitudes: The Gluonic Case , JHEP 0806 (2008) 038, [ arXiv:0805.2152]
-
[60]
M. Czakon, C. Papadopoulos, and M. Worek, Polarizing the Dipoles , JHEP 0908 (2009) 085, [ arXiv:0905.0883]
-
[61]
R. Frederix, S. Frixione, F. Maltoni, and T. Stelzer, Automation of next-to-leading order computations in QCD: The FKS subtraction , JHEP 0910 (2009) 003, [ arXiv:0908.4272]
-
[62]
K. Hasegawa, S. Moch, and P. Uwer, AutoDipole: Automated generation of dipole subtraction terms , Comput.Phys.Commun. 181 (2010) 1802–1817, [ arXiv:0911.4371]
- [63]
-
[64]
A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
S. Alioli, P. Nason, C. Oleari, and E. Re, A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX , JHEP 1006 (2010) 043, [arXiv:1002.2581]
work page internal anchor Pith review arXiv 2010
-
[65]
P. Mastrolia, G. Ossola, T. Reiter, and F. Tramontano, Scattering AMplitudes from Unitarity-based Reduction Algorithm at the Integrand-lev el, JHEP 1008 (2010) 080, [arXiv:1006.0710]
-
[66]
R. Frederix, T. Gehrmann, and N. Greiner, Integrated dipoles with MadDipole in the MadGraph framework, JHEP 1006 (2010) 086, [ arXiv:1004.2905]
- [67]
-
[68]
V. Hirschi, R. Frederix, S. Frixione, M. V. Garzelli, F. Maltoni, et a l., Automation of one-loop QCD corrections , JHEP 1105 (2011) 044, [ arXiv:1103.0621]
-
[69]
G. Bevilacqua, M. Czakon, M. Garzelli, A. van Hameren, A. Kardo s, et al., HELAC-NLO, Comput.Phys.Commun. 184 (2013) 986–997, [ arXiv:1110.1499]
- [70]
- [71]
- [72]
-
[73]
S. Agrawal, T. Hahn, and E. Mirabella, FormCalc 7, J.Phys.Conf.Ser. 368 (2012) 012054, [arXiv:1112.0124]
- [74]
- [75]
- [76]
-
[77]
D. Goncalves-Netto, D. Lopez-Val, K. Mawatari, T. Plehn, and I. Wigmore, Automated Squark and Gluino Production to Next-to-Leading Order , Phys.Rev. D87 (2013) 014002, [arXiv:1211.0286]
- [78]
- [79]
-
[80]
H. van Deurzen, G. Luisoni, P. Mastrolia, E. Mirabella, G. Ossola, et al., Multi-leg One-loop Massive Amplitudes from Integrand Reduction via Laurent Ex pansion, JHEP 1403 (2014) 115, [ arXiv:1312.6678]
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.