Neural simulation-based inference on unbinned top-quark pair data at 13 TeV yields improved gluon PDF precision over traditional binned analyses while incorporating experimental and theoretical uncertainties.
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New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
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First measurement of photonuclear D0 production cross section in ultraperipheral PbPb collisions as a function of pT and rapidity, compared to NLO pQCD with nuclear PDFs and CGC predictions.
The ttbar production cross section in PbPb collisions at 5.36 TeV is measured as 3.42 +0.54-0.51 (stat) +0.50-0.43 (syst) μb and is consistent with NNLO pQCD predictions using nuclear PDFs.
A relative-entropy method with a minimum-relative-entropy hypothesis reproduces quark nPDF shapes from global fits and indicates that EPPS21 gluon central values align more closely with the hypothesis than nNNPDF3.0.
Quarks inside the proton experience an attractive force that stays constant with distance, supplying direct evidence for confinement.
The EIC Yellow Report specifies the science goals, required detector capabilities, and technology concepts needed to realize a high-luminosity electron-ion collider program.