{"total":15,"items":[{"citing_arxiv_id":"2605.19918","ref_index":12,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Redetermination of proton sea distributions","primary_cat":"hep-ph","submitted_at":"2026-05-19T14:43:11+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":3.0,"formal_verification":"none","one_line_summary":"NNLO global fits to HERA and ATLAS data yield an asymmetric proton sea with ubar exceeding dbar at moderate x and a revised Gottfried sum rule value.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.02808","ref_index":97,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Third moments of nucleon unpolarized, polarized, and transversity parton distribution functions from physical-point lattice QCD","primary_cat":"hep-lat","submitted_at":"2026-05-04T16:46:12+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"First lattice QCD calculation at the physical pion mass of the isovector third moments of nucleon unpolarized, polarized, and transversity PDFs via forward matrix elements of local operators.","context_count":1,"top_context_role":"baseline","top_context_polarity":"baseline","context_text":"Placakyte, Parton distribution functions,α s, and heavy-quark masses for LHC Run II, Phys. Rev. D96, 014011 (2017), arXiv:1701.05838 [hep-ph]. [96] A. Accardi, L. T. Brady, W. Melnitchouk, J. F. Owens, and N. Sato, Constraints on large-xparton distributions from new weak boson production and deep-inelastic scattering data, Phys. Rev. D93, 114017 (2016), arXiv:1602.03154 [hep-ph]. [97] H. Abramowiczet al.(H1, ZEUS), Combination of measurements of inclusive deep inelastice ±pscattering cross sections and QCD analysis of HERA data, Eur. Phys. J. C75, 580 (2015), arXiv:1506.06042 [hep-ex]. 30 [98] J. Butterworthet al., PDF4LHC recommendations for LHC Run II, J. Phys. G43, 023001 (2016), arXiv:1510.03865 [hep-ph]. [99] E. R. Nocera, R."},{"citing_arxiv_id":"2604.21670","ref_index":88,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Effective field theory interpretation of ATLAS measurements involving the Higgs boson, electroweak bosons and the top quark","primary_cat":"hep-ex","submitted_at":"2026-04-23T13:36:10+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A simultaneous fit to multiple ATLAS datasets constrains 48 SMEFT Wilson coefficients and matches subsets to 2HDM and heavy-vector models, finding consistency with the Standard Model.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"and MEPS@NLO matching [81, 82] with virtual QCD corrections fromOpenLoops[83, 84]. The gluon-initiated 𝑒±𝜈𝜇 ∓𝜈 production processes are simulated usingSherpaat LO precision for up to one additional parton emission, with the parton-shower modelling being the same as in the quark-initiated samples. Electroweak𝑍 𝑗 𝑗 production is simulated at NLO QCD withHerwig7.1.5 [85, 86] interfaced toVBFNLO3.0.0 [87], using MMHT2014 PDFs [88]. The defaultHerwigparameters are applied for showering, hadronisation, and the underlying event, whileEvtGenis used for bottom- and charm-hadron decays. 3.3.3 Neutral- and charged-current HMDY processes For neutral-current HMDY, the Drell-Yan production of𝜏-lepton pairs is modelled usingSherpa[80] with matrix-element calculations at NLO in QCD for up to two additional partons, and LO accuracy for up to"},{"citing_arxiv_id":"2604.12593","ref_index":13,"ref_count":1,"confidence":0.9,"is_internal_anchor":false,"paper_title":"Precision measurement of the muon charge asymmetry from $W$-boson decays in $pp$ collisions at $\\sqrt{s}$ = 13 TeV in the forward region","primary_cat":"hep-ex","submitted_at":"2026-04-14T11:19:24+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Muon charge asymmetry from W decays is measured with highest precision in the forward region at 13 TeV and agrees with NNLO pQCD.","context_count":1,"top_context_role":"baseline","top_context_polarity":"baseline","context_text":",Measurement of the Z boson production cross- section at 5.02 TeV, JHEP02(2024) 070,arXiv:2308.12940. [11] S. Dulatet al.,New parton distribution functions from a global analysis of quantum chromodynamics, Phys. Rev.D93(2016) 033006,arXiv:1506.07443. [12] NNPDF collaboration, R. D. Ballet al.,Parton distributions for the LHC Run II, JHEP04(2015) 040,arXiv:1410.8849. [13] L. A. Harland-Lang, A. D. Martin, P. Motylinski, and R. S. Thorne,Parton dis- tributions in the LHC era: MMHT 2014 PDFs, Eur. Phys. J.C75(2015) 204, arXiv:1412.3989. [14] S. Alekhin, J. Blumlein, and S. Moch,The ABM parton distributions tuned to LHC data, Phys. Rev.D89(2014) 054028,arXiv:1310.3059. [15] CDF collaboration, F. Abeet al.,Measurement of the lepton charge asymmetry"},{"citing_arxiv_id":"2601.11780","ref_index":129,"ref_count":4,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Observation of a cross-section enhancement near the $t\\bar{t}$ production threshold in $\\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector","primary_cat":"hep-ex","submitted_at":"2026-01-16T21:05:04+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":8.0,"formal_verification":"none","one_line_summary":"ATLAS reports an 8+ sigma excess in ttbar production near threshold, consistent with NRQCD quasi-bound states and measuring 9.3 pb.","context_count":2,"top_context_role":"background","top_context_polarity":"background","context_text":"PS and hadronisation:The PS and hadronisation model uncertainty is estimated by comparing the nominalPowheg+Pythia8 predictions to those obtained from a sample generated at NLO in pQCD withPowheg Boxv2 using the same settings as the nominalPowhegsample for the hard scattering, but interfaced withHerwig7.2 [127, 128], using the default set of tuned parameters [128] and the MMHT2014loPDF set [129]. ME-PS matching:The ME-PS matching uncertainty is estimated by comparing the nominal sample to one with the same settings but using𝑝T,hard= 1 instead of 0 inPythia[130]. 𝒉damp setting:The uncertainty related to the modelling of high-𝑝T radiation is estimated by comparing the nominal sample to one with theℎdamp parameter increased by a factor of 2 [61]."},{"citing_arxiv_id":"2511.23091","ref_index":69,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Measurement of the top-quark mass using decays with a $J/\\psi$ meson at $\\sqrt{s}=$13 TeV with the ATLAS detector","primary_cat":"hep-ex","submitted_at":"2025-11-28T11:23:03+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Top quark mass measured at 172.17 ± 1.56 GeV via unbinned maximum-likelihood fit to m(ℓ μ⁺μ⁻) in ATLAS Run 2 data using J/ψ decays.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"To estimate the uncertainty in the modelling of these effects, an alternative sample was used, where the top-quark decay was simulated with theMadSpingenerator in theMadGraphframework [66] interfacedtoPowheg Boxv2. TheeffectofusingdifferentPSandhadronisationmodelisevaluatedusinga tt sample produced withPowheg Boxv2 interfaced toHerwig7.1.3 [67, 68] using the H7-UE set of tuned parameters and theMMHT2014lo[69] set of PDFs. For single-top-quark events the𝑡- and𝑡W-channels samples were simulated usingHerwig7.2.1. To evaluate the uncertainty in the modelling of the𝑏-quark fragmentation, two additional samples were produced with the value of the𝑟𝑏 parameter entering the Lund-Bowler parameterisation in the fragmentation function varied by its uncertainty of±0."},{"citing_arxiv_id":"2509.13759","ref_index":63,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Measurement of the $W$-boson angular coefficients and transverse momentum in $pp$ collisions at $\\sqrt{s}=$ 13 TeV with the ATLAS detector","primary_cat":"hep-ex","submitted_at":"2025-09-17T07:15:57+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"ATLAS reports the first measurement of the complete angular coefficients and pT-differential cross sections for W+ and W- bosons in full lepton phase space at 13 TeV, finding agreement with QCD predictions up to order α_S².","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2503.17461","ref_index":116,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Electroweak diboson production in association with a high-mass dijet system in semileptonic final states from $pp$ collisions at $\\sqrt{s} = 13$ TeV with the ATLAS detector","primary_cat":"hep-ex","submitted_at":"2025-03-21T18:17:17+00:00","verdict":"ACCEPT","verdict_confidence":"MODERATE","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Electroweak diboson plus high-mass dijet production observed at 7.4 sigma with signal strength 1.28, plus first semileptonic-channel limits on S02, T0 and M0 Wilson coefficients.","context_count":1,"top_context_role":"dataset","top_context_polarity":"use_dataset","context_text":"uncertainty is evaluated bin-by-bin in the final RNN observable, and is found to vary with respect to the nominal prediction from a few percent to up to 50% in the 1- and 2-lepton channels, and up to 20% in the 0-lepton channel. Similarly, the shape uncertainty for the𝑡¯𝑡 process is obtained by a comparison to an alternative Herwig7.04 sample using the H7UE set of tuned parameters [115] and the MMHT2014LO PDF set [116]. 20 The cross section for theQCD 𝑉𝑉 and single−𝑡 contributions are estimated from the best theoretical cross section available as detailed in Section 3.2. An uncertainty in the modelling of theQCD 𝑉𝑉 process in this phase space is estimated by comparing to an alternative MC generator choice,Powheg Box+Pythia. A normalization uncertainty of 20% insingle−𝑡 is assumed with no further shape variation [117]."},{"citing_arxiv_id":"1912.10053","ref_index":3,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC","primary_cat":"hep-ph","submitted_at":"2019-12-20T19:00:05+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"New CT18 PDFs at NLO and NNLO from global fit to HERA plus LHC jet, Drell-Yan, top-pair and Z data, with Hessian errors, Lagrange-multiplier studies, and alternate sets for data tensions and scale choices.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"values from the respective smooth functions, with 0.5% being the conservative upper bound reached for a fraction of the fitted data points. 19 Error propagation must account for numerical theoretical errors of this kind. The non-negligible MC errors in some NNLO predictions were also noticed by other PDF fitting groups. The NNPDF group, for example, takes a similar approach in their analysis [3]. For the inclusive jet data, they use NLO calculations as the theoretical predictions, together with an additional correlated uncertainty estimated from the renormalization and factorization scale variations. For the high- pT Z boson data, an NNPDF-based analysis also adds an extra 1% uncorrelated uncertainty to account for the Monte-Carlo fluctuations of the NNLO/NLO K-factor values [46]."},{"citing_arxiv_id":"1907.08147","ref_index":1,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Updates of PDFs in the MMHT framework","primary_cat":"hep-ph","submitted_at":"2019-07-18T16:34:54+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":3.0,"formal_verification":"none","one_line_summary":"The paper reports incremental updates to MMHT PDFs with emphasis on strange quark extraction from improved NNLO cross sections, extended parameterization, and correlated uncertainty treatment.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1906.11800","ref_index":47,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"High-energy effects in forward inclusive dijet and hadron-jet production","primary_cat":"hep-ph","submitted_at":"2019-06-27T17:14:53+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":3.0,"formal_verification":"none","one_line_summary":"New BFKL predictions for forward hadron-jet production to delineate the validity region versus DGLAP fixed-order effects.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1906.11793","ref_index":20,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Using Forward-Backward Drell-Yan Asymmetry in PDF Determinations","primary_cat":"hep-ph","submitted_at":"2019-06-27T16:54:31+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Inclusion of forward-backward asymmetry from LHC neutral current Drell-Yan data provides additional sensitivity to parton distribution functions at current and future luminosities in xFitter fits.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1906.11332","ref_index":60,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"VBSCan Thessaloniki 2018 Workshop Summary","primary_cat":"hep-ph","submitted_at":"2019-06-26T20:20:57+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":1.0,"formal_verification":"none","one_line_summary":"The document reports the first year of activity of the VBSCan COST Action network on vector-boson scattering phenomenology and experiments from a 2018 workshop.","context_count":1,"top_context_role":"dataset","top_context_polarity":"use_dataset","context_text":"statistical combination, while the obtained uncertainty takes into account the uncertainties of all the input sets. The PDF uncertainty from the envelope method is often overestimated, while this is not the case for the statistical combination method. The LHAPDF library currently contains one statistical combination: PDF4LHC15 [58]. This is a combination of CT14 [59], MMHT2014 [60], and NNPDF3.0 [61] sets. If the input PDF sets are represented by MC replicas, the construction of the statistical combina- tion is pretty straightforward. Namely, the input PDF sets, with equal number of replicas, can simply be merged into one larger PDF set [62], which is called the prior set. The only input PDF set into the PDF4LHC15, represented with the MC replicas, is NNPDF3."},{"citing_arxiv_id":"1906.10534","ref_index":30,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"On the ratio of $t\\bar{t}\\gamma$ and $t\\bar{t}$ cross sections at the LHC","primary_cat":"hep-ph","submitted_at":"2019-06-25T13:56:37+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Computes the ratio of ttgamma/tt cross sections at LHC Run II with NLO QCD including off-shell effects, quantifying reduced theoretical uncertainties from correlations.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1906.10059","ref_index":11,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Efficient interpolation and evolution of parton distribution functions","primary_cat":"hep-ph","submitted_at":"2019-06-24T16:28:20+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A Chebyshev interpolation method for efficient numerical evolution of PDFs and DPDs via DGLAP equations at NNLO with flavor matching and independent scales for DPDs.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null}],"limit":50,"offset":0}