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PineAPPL: combining EW and QCD corrections for fast evaluation of LHC processes
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We introduce PineAPPL, a library that produces fast-interpolation grids of physical cross sections, computed with a general-purpose Monte Carlo generator, accurate to fixed order in the strong, electroweak, and combined strong-electroweak couplings. We demonstrate this unique ability, that distinguishes PineAPPL from similar software available in the literature, by interfacing it to MadGraph5_aMC@NLO. We compute fast-interpolation grids, accurate to next-to-leading order in the strong and electroweak couplings, for a representative set of LHC processes for which EW corrections may have a sizeable effect on the accuracy of the corresponding theoretical predictions. We formulate a recommendation on the format of the experimental deliverables in order to consistently compare them with computations that incorporate EW corrections, and specifically to determine parton distribution functions to the same accuracy.
Forward citations
Cited by 12 Pith papers
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Simultaneous extraction of top quark mass, strong coupling, effective mixing angle, and proton PDFs using inclusive DIS and proton-proton collision data
A single xFitter global fit extracts PDFs, alpha_s(mZ), top pole mass, and sin^2 theta_eff simultaneously at NNLO, with NLO NRQCD threshold corrections, yielding m_t=172.59 GeV, alpha_s=0.1179, sin^2 theta_eff=0.23142.
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Impact of Z-boson transverse-momentum resummation on PDF determination
N3LL' resummation is required to reconcile the 13 TeV ATLAS Z-pT spectrum with global PDF fits, but lowering the pT cut below 30 GeV is not yet supported.
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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.
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Tailored PDFs for New Physics searches
Using closure tests with W', Z', and coloron models, the paper shows that either excluding high-energy data or fitting PDFs jointly with SMEFT coefficients prevents new-physics signals from being absorbed into the pro...
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MATRIX HAWAII: PineAPPL interpolation grids with MATRIX
Matrix Hawaii provides a public interface between PineAPPL and MATRIX that generates interpolation grids at NNLO QCD + NLO EW accuracy for a range of LHC processes, with sub-permille interpolation errors.
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A Determination of ${\alpha}_s(m_Z)$ at ${\bf aN^3LO_{QCD}}\otimes {\bf {NLO}_{QED}}$ Accuracy from a Global PDF Analysis
From a global QCD-QED parton fit with NNPDF4.0 methodology, the authors determine alpha_s(m_Z)=0.1194^{+0.0007}_{-0.0014}, consistent with the PDG average and recent lattice results.
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Fast interpolation grids for the Drell-Yan process
Differential NNLO Drell-Yan interpolation grids are released, with closure tests showing sub-per-mille accuracy and a validation that PDF fits are unaffected by the K-factor approximation.
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Parton distributions confront LHC Run II data: a quantitative appraisal
A systematic NNLO data-theory comparison shows that the main PDF sets generalise to unseen LHC and HERA data about equally well once PDF, alpha_s, and missing higher order uncertainties are included.
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Updated predictions for toponium production at the LHC
Updated QCD prediction for top-pair production near threshold at 13 TeV: toponium bound-state effects plus NLL threshold resummation enhance the mass distribution by about 10% and give 12 pb in the 340 to 350 GeV bin ...
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Global analyses of helicity-dependent parton distribution functions
Modern global QCD analyses agree that up-quark helicity is positive and down-quark helicity negative, with positive gluon polarisation at moderate x, while the full gluon spin moment remains limited by the unmeasured ...
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Fingerprinting New Physics with Effective Field Theories
A thesis compiling published SMEFT global fits, automated UV-model constraints, and ML-based unbinned observables, with projections for HL-LHC, FCC-ee, and CEPC.
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Top-quark pole mass extraction at NNLO accuracy
Top-quark pole mass values extracted from NNLO fits to ttbar cross-section data are consistent across four PDF sets and with the PDG 2024 average.
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