REVIEW 32 cited by
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
A new generation of parton distribution functions with increased precision and quantitative estimates of uncertainties is presented. This work significantly extends previous CTEQ and other global analyses on two fronts: (i) a full treatment of available experimental correlated systematic errors for both new and old data sets; (ii) a systematic and pragmatic treatment of uncertainties of the parton distributions and their physical predictions, using a recently developed eigenvector-basis approach to the Hessian method. The new gluon distribution is considerably harder than that of previous standard fits. A number of physics issues, particularly relating to the behavior of the gluon distribution, are addressed in more quantitative terms than before. Extensive results on the uncertainties of parton distributions at various scales, and on parton luminosity functions at the Tevatron RunII and the LHC, are presented. The latter provide the means to quickly estimate the uncertainties of a wide range of physical processes at these high-energy hadron colliders, based on current knowledge of the parton distributions. In particular, the uncertainties on the production cross sections of the $W,Z$ at the Tevatron and the LHC are estimated to be $\pm 4%$ and $\pm 5%$ respectively, and that of a light Higgs at the LHC to be $\pm 5%$.
Forward citations
Cited by 32 Pith papers
-
Probing Heavy-Quark Spin Symmetry in Double $J/\psi$ Hadroproduction
A complete O(alpha_s^5) NRQCD calculation for prompt J/psi pair hadroproduction finds LHC data fix one combination of color-octet LDMEs, yielding a set that tests heavy-quark spin symmetry via eta_c data.
-
Factorisation schemes for proton PDFs
All common NLO factorisation schemes for proton PDFs are special cases of a single discrete family, and scheme choice can shift LHC jet predictions by up to 20-30%.
-
Search for $\textit{tH}$ production in the $ H \to \tau\tau$ decay mode, and a combination with other searches, using $\textit{pp}$ collisions at 13 TeV and 13.6 TeV with the ATLAS detector
ATLAS's combined tH search, including a new H→ττ channel, measures μ_tH = 3.3 ± 1.6 times the SM, with 2.3σ observed significance and an observed 95% CL limit of 6.1×SM.
-
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.
-
Cross-section measurements of boosted Higgs boson production in final states with pairs of hadronically decaying $\tau$-leptons with the ATLAS experiment
ATLAS reports the first boosted H→ττ cross-section measurements for Higgs pT > 300 GeV, with an observed (expected) significance of 3.8 (3.3) standard deviations, consistent with the Standard Model.
-
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.
-
Search for soft unclustered energy patterns containing muons in the final state in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
No significant excess observed in search for SUEP signatures with muons; exclusion limits set on mediator cross section times branching fraction down to 0.05 fb at 750 GeV.
-
Search for higgsinos in compressed mass spectra using low-momentum tracks in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
No excess over the Standard Model is observed; ATLAS excludes chargino masses below 126 GeV at 95% CL for mass splittings of 0.3–2 GeV in a simplified higgsino model.
-
A Unified Neural-Network Framework for Nucleon Imaging from Numerical Simulations of QCD
One neural network simultaneously fits LaMET and short-distance-expansion lattice data to reconstruct light-cone PDFs and zero-skewness GPDs of the nucleon.
-
$J/\psi$ Polarization and $p_T$ distribution in $c\ \!\bar{c}$ associated hadroproduction at $\mathcal{O}(\alpha_s^5)$
The gluon-gluon fusion process gg -> J/psi + c cbar is computed at NLO QCD, with large corrections, nearly unpolarized J/psi, and improved agreement with LHC data, while a normalization gap of about an order of magnit...
-
Decoding the proton's gluonic density with lattice QCD-informed machine learning
A variational autoencoder inverse mapper extracts the proton's gluon PDF from lattice QCD pseudo-Ioffe-time distributions, yielding results consistent with global fits.
-
Description of di-hadron saturation signals within a universal nuclear parton distribution function approach
Modern nuclear PDF sets can explain most of the forward di-hadron and di-jet suppression in p+A collisions without invoking gluon saturation, and naturally predict an unchanged azimuthal width.
-
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.
-
Energy scale and resolution for anti-$k_t$ jets with radius parameters $R=0.2$ and 0.6 measured in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
ATLAS presents the first JES and JER measurements for anti-k_t R=0.2 and R=0.6 jets at 13 TeV, using a new direct-matching in situ calibration against R=0.4 jets.
-
Cross-section measurements for the production of a $W$-boson in association with high-transverse-momentum jets in $pp$ collisions at $\sqrt{s}$= 13 TeV with the ATLAS detector
New ATLAS measurements of W+jet production with leading-jet transverse momentum above 500 GeV, including a new collinear phase space, are largely described by NLO multi-leg generators and NNLO MCFM, with MCFM undersho...
-
How well does nonrelativistic QCD factorization work at next-to-leading order?
A single set of NRQCD color-octet matrix elements fitted to LHC J/psi and eta_c data predicts a wide range of quarkonium observables, including Upsilon(3S) production and low-momentum photoproduction, with residual fa...
-
Search for Higgs boson decays into a $Z$ boson and a light hadronically decaying resonance in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector
ATLAS observes no excess in H to Z plus light hadronic resonance decays and sets 95% CL branching-fraction limits near 10% for low resonance masses, improving on the previous search.
-
High-energy neutrino event simulation at NLO in Genie for KM3NeT and other observatories
HEDIS, a GENIE extension, implements NLO neutrino-nucleon cross sections with PYTHIA6 hadronization, extending neutrino-telescope event simulation to EeV energies.
-
Electroweak Corrections to Dark Matter Direct Detection in a Vector Dark Matter Model
One-loop electroweak corrections to spin-independent dark matter-nucleon scattering in a U(1)χ vector dark matter model are computed; they reach K-factors around 2.5 and can move otherwise allowed parameter points abo...
-
Measurement of $J/\psi$-jet correlations in $pp$ and Pb+Pb collisions at $\sqrt{s_{\text{NN}}}=5.02$ TeV with the ATLAS detector
New measurements of isolated, non-isolated, and inclusive J/ψ yields, nuclear modification factors, and fractions up to 60 GeV in pp and Pb+Pb collisions at 5.02 TeV.
-
Measurement of the Higgs boson production in association with top quarks in multilepton final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
ATLAS measures the ttH cross-section at 0.63+0.20−0.19 of the Standard Model prediction (3.3σ observed, 5.3σ expected) and excludes top-Higgs CP-mixing angles |α|>62° at 68% confidence.
-
Anomalous electroweak physics unraveled via evidential deep learning
A proof-of-principle demonstration that evidential deep learning can classify and quantify uncertainty for three toy anomalous electroweak scenarios in neutrino deep-inelastic scattering.
-
Search for light long-lived neutral particles produced in $pp$ collisions at $\sqrt{s} =$ 13 TeV and decaying into collimated leptons or light hadrons with the ATLAS detector
No evidence for displaced dark-photon jets is found, and 95% confidence limits exclude cross sections above about 4 pb for H to two dark photons with decay lengths from 1.5 mm to 307 mm.
-
Prompt ${J/\psi}$-pair production at the LHC: impact of loop-induced contributions and of the colour-octet mechanism
Loop-induced CS and selected CO SPS contributions to prompt J/ψ pairs are too small or kinematically limited to account for LHC data or affect DPS control regions.
-
Toward an event-level analysis of hadron structure using differential programming
LOITS is a differentiable sampling method, demonstrated in a GAN closure test, that maps sampled events back to the parameters of a target density for event-level inference.
-
Kination-like Era Driven by the Effective Inflaton/Higgs Potential
Radiative corrections to the U(1)_X Higgs inflaton produce a post-inflationary stiff era that characteristically modulates the inflationary gravitational wave spectrum, connecting the signal to the Z' boson mass and g...
-
Non-Standard Neutrino Interactions at Neutrino Experiments and Colliders
Collider searches are generally more constraining than neutrino measurements on simplified models of non-standard neutrino interactions, except possibly for muon-philic leptoquarks and certain heavy neutral leptons.
-
Performance of electron and photon triggers in ATLAS during LHC Run 2
For 2015-2018 LHC data, ATLAS electron and photon triggers select more than 75-96% of candidate electrons and photons above threshold, with the full efficiency curves and systematic uncertainties reported.
-
Search for electroweak production of charginos and sleptons decaying into final states with two leptons and missing transverse momentum in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
Using 139 fb^-1 of 13 TeV pp data, ATLAS finds no sign of charginos or sleptons and excludes chargino masses up to 420 GeV (W-mediated) and slepton masses up to 700 GeV for a massless LSP.
-
The next-to-leading order of the differential cross-section of the subprocess of Compton scattering of quark-gluon of prompt photon production in proton-proton collisions at NICA energies
NLO corrections add roughly 15% to the differential cross-section of qg → qγ at high energies in pp collisions at NICA, with polarization effects larger at NLO than at LO.
-
Light charged Higgs boson production at future $ep$ colliders
Charged Higgs bosons in the 2HDM Type-III model could be detected at the LHeC with up to about 4 sigma significance at 100 fb^-1 and higher at larger luminosities for masses near 110 to 130 GeV.
-
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 ...
Discussion (0). Continue with ORCID to comment.