{"total":24,"items":[{"citing_arxiv_id":"2605.09881","ref_index":41,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Dissecting Jet-Tagger Through Mechanistic Interpretability","primary_cat":"hep-ph","submitted_at":"2026-05-11T02:11:47+00:00","verdict":"ACCEPT","verdict_confidence":"MODERATE","novelty_score":8.0,"formal_verification":"none","one_line_summary":"A Particle Transformer jet tagger contains a sparse six-head circuit whose source-relay-readout structure recovers most performance and whose residual stream preferentially encodes 2-prong energy correlators.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"Signal jets are initiated by hadronic top decays, t→W b→q¯qb ; background jets are initiated by light quarks and gluons. Events are simulated with PYTHIA 8 [ 40] and detector effects are modeled by a fast parametric simulation. Both classes are selected with jet transverse momentum pT ∈ [550, 650] GeV and pseudo-rapidity |η|< 2. Jets are reconstructed with the anti- kT algorithm [41] using FastJet [42] with radius parameter R = 0.8. Each jet is represented by up to 200 constituent particles ordered by decreasingp T , with zero-padding for jets containing fewer constituents. We use 200,000 jets for training, 50 ,000 for validation, and 50 ,000 for testing, with a 50% signal fraction in all splits. All mechanistic interpretability analyses use the test set unless"},{"citing_arxiv_id":"2605.03063","ref_index":39,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"From Information Geometry to Jet Substructure: A Triality of Cumulant Tensors, Energy Correlators, and Hypergraphs","primary_cat":"hep-ph","submitted_at":"2026-05-04T18:33:01+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Higher-order Fisher tensors in exponential-family coordinates of binned energy correlators are simultaneously local KL coefficients, connected cumulants, and hyperedge weights, enabling hypergraph constructions for jet substructure analysis.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"A third application is to the design of the observable basis itself. In a realistic jet analysis one often begins with tens or hundreds of binned EECs together with a selected ECF/EFP basis, and the main practical question is not how to fit one fixed set of observables but which observables should survive into the final analysis. This is closely related to information- theoretic approaches to observable design [39]. The triality provides a principled answer because it attaches a local statistical meaning to every connected correlator pattern. Given a task direction ∆ a in feature space, one may rank hyperedges by the aligned score S(n) e = ∆a1 · · ·∆ anI(n) a1···an , e={a 1, . . . , an}.(6.27) Because the same coefficient is also a connected correlator cumulant, a large value ofS (n)"},{"citing_arxiv_id":"2605.02848","ref_index":46,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for a new heavy scalar resonance decaying into the Higgs boson and a new scalar particle in the $\\mathrm{b}\\bar{\\mathrm{b}}\\mathrm{b}\\bar{\\mathrm{b}}$ final state using proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-05-04T17:25:03+00:00","verdict":"ACCEPT","verdict_confidence":"MODERATE","novelty_score":5.0,"formal_verification":"none","one_line_summary":"No evidence found for a new heavy scalar resonance X decaying to Higgs plus new scalar Y in the four-bottom-quark final state; 95% CL upper limits set on cross section times branching fraction.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"3 Event reconstruction In the PF event reconstruction, the identification of the particle type (photon, electron, muon, charged or neutral hadron) plays an important role in the determination of the particle direction and energy. For each event, hadronic jets are clustered from PF candidates using the infrared and collinear-safe anti-kT algorithm [46, 47] with a distance parameter of 0.4. Jet momentum is determined as the vectorial sum of all particle momenta in the jet, and is found from simulation to be, on average, within 5 to 10% of the true momentum over the entire transverse momentum (pT) spectrum and detector acceptance. The jets in the events are required to have|η|<2.4 for data-taking year 2016 and|η|<2."},{"citing_arxiv_id":"2604.27795","ref_index":46,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for light charged Higgs bosons decaying to charm and strange quarks in $\\mathrm{t\\bar{t}}$ events in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-30T12:40:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"No evidence found for light charged Higgs bosons in ttbar events; upper limits set on B(t to H±b) of 0.07-1.12% at 95% CL for masses 40-160 GeV assuming 100% decay to cs.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"where the sums run over all PF candidates within a cone of∆R= √ (∆η) 2 + (∆ϕ) 2 =0.4 for muons (0.3 for electrons), and the neutral component of transverse momentum due to photons and hadrons is corrected for pileup usingρA eff whereρis the diffuse offset energy density and Aeff is the effective area. Jets are clustered using the anti-k T algorithm [46, 47] as implemented in the FASTJETpack- age [47], with a distance parameter of∆R=0.4. Contributions from pileup interactions are mitigated by discarding charged hadrons not associated with the PV and by applying correc- tions based on the estimated pileup energy density [48]. Jet energy corrections are derived from simulation to bring the measured response of jets to that of particle-level jets on average."},{"citing_arxiv_id":"2604.27091","ref_index":41,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Measurement of the top quark pair production cross section in PbPb collisions at $\\sqrt{s_\\mathrm{NN}}$ = 5.36 TeV","primary_cat":"nucl-ex","submitted_at":"2026-04-29T18:36:31+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"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.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"uncertainties) are overlaid on top of the stacked contributions from the expected tt (blue), non- prompt (light orange), WW (red), single top quark (gray), and DY (violet) processes. The last bin includes the overflow entries. In the left panel, the event counts are divided by the variable bin width. For each event, hadronic jets are clustered from the PF candidates using the anti-k T algo- rithm [41, 42] with a distance parameter of 0.3. Jet energy corrections and b quark identifi- cation are performed with a dedicated multivariate algorithm called \"unified particle trans- former\" (UPART) [43], explicitly trained for heavy ion collisions. A detailed description of this algorithm for heavy-flavor quark identification can be found in Refs. [44, 45]."},{"citing_arxiv_id":"2604.27044","ref_index":72,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Improved results on Higgs boson pair production in the 4b final state","primary_cat":"hep-ex","submitted_at":"2026-04-29T17:54:15+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"CMS sets an observed upper limit of 4.4 on the HH signal strength μ_HH in the 4b final state at 13.6 TeV, improving prior LHC results by more than a factor of two in the resolved topology.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"to match the pileup distributions measured in data. 4 Object and event reconstruction The particle-flow (PF) algorithm [71] aims to reconstruct and identify each individual particle (PF candidate) in an event, with an optimized combination of information from the various elements of the CMS detector. The PF candidates are clustered into jets using the anti-k T al- gorithm [72] implemented in FASTJET[73] with a distance parameter of 0.4 (\"AK4\" jets) or 0.8 (\"AK8\" jets). 4.1 Trigger overview5 Pileup interactions can contribute to the jet momentum by adding tracks and energy depo- sitions in the calorimeters. To mitigate this effect, the pileup-per-particle identification algo- rithm [74, 75] is used in Run 3 data to assign a weight to each particle prior to jet clustering"},{"citing_arxiv_id":"2604.25604","ref_index":35,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for electroweakinos in compressed-spectrum scenarios with low-momentum isolated tracks in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-28T13:09:44+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"No significant excess observed; 95% CL exclusion of higgsino electroweakinos with mass splittings 0.28-1.15 GeV and chargino masses up to 185 GeV using soft-track and neural-network selection.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"vided by the silicon inner tracker and by the crystal electromagnetic and brass-scintillator hadron calorimeters, operating inside a 3.8 T superconducting solenoid, with data from the gas-ionization muon detectors embedded in the flux-return yoke outside the solenoid. The reconstructed particles are used to buildτleptons, jets, and the vector ⃗p miss T [32-34]. Jets are clustered using the anti-kT algorithm [35, 36] with a distance parameter of 0.4. Monte Carlo (MC) samples of SM background processes, including top quark pair production, W+jets, and Z+jets, are simulated at leading order (LO) in perturbative quantum chromody- namics using MADGRAPH5 aMC@NLO2.2.2 [37, 38], with up to four additional partons in the matrix element. ThePYTHIA8.240 [39] generator is used for parton showering, fragmenta-"},{"citing_arxiv_id":"2604.25538","ref_index":64,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Simultaneous measurements of $N$-subjettiness observables in jets from gluons and light-flavour quarks, and in decays of boosted W bosons and top quarks","primary_cat":"hep-ex","submitted_at":"2026-04-28T12:04:54+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"CMS reports a simultaneous measurement of 25 N-subjettiness observables in 1-, 2-, and 3-prong jets, unfolded to stable particles with particle-level correlations for QCD modeling.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"4, with detection planes made us- ing three technologies: drift tubes, cathode-strip chambers, and resistive-plate chambers. The single-muon trigger efficiency exceeds 90% over the fullηrange, and the efficiency to recon- struct and identify muons is greater than 96% [58]. Hadronic jets are reconstructed from PF candidates using the IRC-safe anti-k T algorithm [64], as implemented in the FASTJETsoftware package [48]. Jet momentum is determined as the vectorial sum of all particle momenta in the jet and is found from simulation to be, on average, within 5 to 10% of the true momentum over the entirep T spectrum and detector acceptance. Two types of anti-k T jets are utilized in this analysis. The first is clustered with the distance"},{"citing_arxiv_id":"2604.24531","ref_index":26,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for associated production of a Higgs boson and two vector bosons via vector boson scattering at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-27T14:30:10+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"CMS excludes κ_VV outside 0.40-1.60 at 95% CL and constrains κ_2W and κ_2Z using VBS events with a boosted Higgs to bb decay.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"Leptons are clas- sified as \"tight\" or \"loose\" according to the criteria defined in Ref. [24] in all channels, except for the SS dilepton channel, where criteria similar to those defined in Refs. [15, 16, 23] are used. Hadronically decayingτleptons are identified by the DEEPTAUalgorithm [25]. Jets are clustered from PF candidates using the anti-k T algorithm [26, 27]. Distance parame- ters of 0.4 and 0.8 are used to reconstruct so-called \"AK4\" and \"AK8\" (or large-radius) jets, respectively. Jet momenta are corrected to reduce pileup contributions: the charged hadron subtraction [28] and the pileup-per-particle identification [28, 29] algorithms are used for AK4 and AK8 jets, respectively. Further corrections are derived from simulation and in-situ mea-"},{"citing_arxiv_id":"2604.23189","ref_index":18,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Baryon enhancement in jets","primary_cat":"hep-ph","submitted_at":"2026-04-25T07:41:38+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"PYTHIA8 simulations show baryon enhancement in high-multiplicity jets from 13 TeV pp collisions due to gluon jet dominance, challenging collective medium and recombination interpretations.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.20999","ref_index":32,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for dark matter produced in association with a dark Higgs boson decaying into a bottom quark-antiquark pair in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-22T18:41:48+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"New upper limits exclude mediator masses up to 4.5 TeV for a 50 GeV dark Higgs and up to 2.5 TeV for 150 GeV in a spin-1 mediator dark matter model, the most stringent to date for these masses.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"In addition, the overlap between tau leptons and electrons or muons is further sup- 4 pressed by removing tau leptons that lie within∆R<0.4 of a well-reconstructed and isolated electron or muon. Hadronically decaying tau leptons are required to havep T >20 GeV and |η|<2.3. For each event, hadronic jets are clustered from the PF candidates using the infrared and collinear safe anti-k T algorithm [32, 33] with a distance parameter of 0.4 or 1.5. Depending on the respective distance parameter, these jets are referred to as \"AK4\" or \"AK15\" jets. Jet momentum is determined as the vectorial sum of all particle momenta in the jet, and is found from simulation to be, on average, within 5-10% of the true momentum over the entirep T spectrum and detector acceptance."},{"citing_arxiv_id":"2604.17951","ref_index":7,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"QCD, electroweak physics, and searches for exotic signatures in the forward region at LHCb","primary_cat":"hep-ex","submitted_at":"2026-04-20T08:31:16+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":2.0,"formal_verification":"none","one_line_summary":"LHCb reports forward measurements of heavy-flavour jets, electroweak bosons, and searches for ALPs, HNLs, and rare multi-muon B decays.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.17564","ref_index":36,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for the single production of vector-like quarks decaying into a W boson and a b quark using single-lepton final states in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-19T18:10:43+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"No significant excess observed in search for vector-like quark single production to Wb, setting 95% CL upper limits on κ_W as low as 0.086 near 1.4 TeV mass and excluding masses below 2.4 TeV at κ_W=0.2.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"passing looser isolation and identification requirements are rejected. Particles reconstructed by the PF algorithm are clustered into jets with the FASTJETpackage [35] by using the direction of each particle at the PV . Charged hadrons found by the PF algorithm that are associated with pileup vertices are not considered. Jets are reconstructed using the anti-kT algorithm [36] with a distance parameter ofR=0.4 (AK4 jets). An event-by-event jet-area-based correction [37] is applied to remove, on a statistical basis, the neutral pileup contribution that cannot be removed by the charged-hadron subtraction procedure described above. Jet energy corrections are applied to each jet, as a function ofp T andη, to correct for the"},{"citing_arxiv_id":"2604.13157","ref_index":107,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Proton Structure from Neural Simulation-Based Inference at the LHC","primary_cat":"hep-ph","submitted_at":"2026-04-14T18:00:00+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":8.0,"formal_verification":"none","one_line_summary":"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.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"corrections and the resummation of next-to-next-to-leading logarithmic (NNLL) soft-gluon terms [102-106]. This cross section calculation yields ¯σ(0) =σ(tt)×BR(t→bℓν) 2 = 831.8 pb×(3×0.1086) 2 = 88.3 pb.(4.3) The generated particle-level events are subsequently processed with aDelphes-based simulation model of the CMS detector. Kinematic requirements are placed on jets, electrons, and muons. Jets are recon- structed with the anti-k T algorithm [107] using a distance parameter ofR= 0.4 in theF astJetsoftware package [108]. The nominal b-tagging of jets inDelphesis based on parton-matching and a parameter- isation of the default CMS b-tagging efficiency. Electrons and muons must be isolated from jets, satisfy pℓ T >20 GeV, and be reconstructed within absolute pseudorapidity|η ℓ|<2.5. If there are two same-"},{"citing_arxiv_id":"2604.10729","ref_index":23,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for a new heavy resonance decaying to a top quark and a neutral scalar boson in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-12T17:02:10+00:00","verdict":"ACCEPT","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"No excess found in search for T' to top plus phi; excludes T' masses 0.85-1.3 TeV at 95% CL for SM Higgs case with 5% width, and sets cross-section limits as low as 0.1 fb.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"The particle-flow (PF) algorithm [22] aims to reconstruct and identify each individual particle 3 in an event with an optimized combination of information from the various elements of the CMS detector. For each event, hadronic jets are clustered from these reconstructed particles (PF candidates) using the infrared- and collinear-safe anti-k T algorithm [23, 24]. Two different jet collections, referred to as AK4 and AK8 jets, are clustered using distance parameter values of 0.4 and 0.8, respectively. Jet momentum is determined as the vectorial sum of all parti- cle momenta in the jet, and is found from simulation to be, on average, within 5-10% of the true momentum over the whole transverse momentum (pT) spectrum and detector acceptance."},{"citing_arxiv_id":"2604.11834","ref_index":24,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"An AI-based Detector Simulation and Reconstruction Model for the ALEPH Experiment at LEP","primary_cat":"physics.ins-det","submitted_at":"2026-04-12T05:23:20+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Parnassus faithfully reproduces the ALEPH detector response at event, jet, and particle levels for clean e+e- to Z to qqbar events.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"fast-simulation output, and the Delphes fast-simulation baseline across multiple levels of granularity 2. We first 1 These are standard coordinates forppandep, but they also seem to work well in this cylindrically symmetric setting. 2 The same particle-level events are used for all three by extracting the truth from the ALEPH samples and con- verting to HEPMC [24]. The ALEPH Delphes card is fromhttps://github.com/delphes/delphes/blob/master/ cards/delphes_card_ALEPH.tcl. 3 examine global event-level observables, followed by jet- level kinematic and substructure variables, and finally particle-level distributions and vertex information. This progression enables a systematic assessment of the model performance from coarse global properties to the most"},{"citing_arxiv_id":"2604.09809","ref_index":46,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Particle transformers for identifying Lorentz-boosted Higgs bosons decaying to a pair of W bosons","primary_cat":"hep-ex","submitted_at":"2026-04-10T18:33:27+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"PaRT achieves >50% tagging efficiency for boosted H->WW jets at 1% background efficiency, decorrelated from jet mass, with data-to-simulation scale factors of 0.9-1.0 on 138 fb^{-1} of 13 TeV collisions.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"information alone, as described in Section 9.4.1 of Ref. [44]. Secondary vertices (SVs), such as those found in b hadron decays, are reconstructed using the inclusive vertex finder algorithm, which identifies tracks with large impact parameters [45]. 3 For each event, hadronic jets are clustered from these reconstructed particles using the infrared- and collinear-safe anti-k T algorithm [46, 47] with a distance parameter of 0.4 (AK4 jets) or 0.8 (AK8 jets). Jet momentum is determined as the vector sum of all particle momenta in the jet, and is found from simulation to be, on average, within 5 to 10% of the true momentum over the wholep T spectrum and detector acceptance. Additional pp interactions within the same or nearby bunch crossings (pileup) can contribute additional tracks and calorimetric energy"},{"citing_arxiv_id":"2604.05996","ref_index":38,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for soft unclustered energy patterns produced in association with a W or Z boson in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-07T15:21:23+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"No significant excess is observed in leptonic W/Z plus high-multiplicity soft-particle events, setting limits on Higgs to SUEP decays across a range of model parameters.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"loose (very tight) relative PF isolation requirements, corresponding to a selection efficiency of 98 (91)% [20]. Events with exactly one (two) selected loose electrons or muons are assigned to the WH (ZH) channel. Hadronic jets are used to apply different event selection criteria. After rejecting charged hadrons that do not originate from the PV , the anti-kT algorithm [38, 39] with a distance parame- ter ofR=0.4 is used to cluster the reconstructed particles into jets; subsequently, neutral pileup contributions are subtracted [40]. Jets must havep T >30 GeV,|η|<2.5, and pass tight identi- fication criteria designed to reduce noise effects from the calorimeter systems with a 99% effi- ciency for genuine jets [41]. The reconstructed jet energy is corrected to better match the energy"},{"citing_arxiv_id":"2604.02604","ref_index":45,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Probing Freeze-In Dark Matter via a Spin-2 Portal at the LHC with Vector Boson Fusion and Machine Learning","primary_cat":"hep-ph","submitted_at":"2026-04-03T00:47:19+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"LHC vector boson fusion searches enhanced by machine learning can probe substantial regions of cosmologically viable parameter space for freeze-in dark matter mediated by a spin-2 particle.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"Representative Feynman diagram ofpp→χχjjsig- nal production via photon-photon fusion at the LHC. The parton-level events are interfaced withPythia 8.2.30[42, 43] for parton showering and hadronization. Detector effects are modeled usingDelphes 3.4.1[44], adopting a CMS detector configuration for object re- construction and identification. Jets are clustered with the anti-k T algorithm [45] as implemented inFastJet 3.4.2[46], using a radius parameterR= 0.4. Matching between matrix-element partons and parton-shower jets is performed using the MLM scheme [47], with matching parameters set toxqcut= 30 andqcut= 45. These choices ensure a smooth transition in differential jet rates across different jet multiplicities. Accurate reconstruction of leptons, light-flavor jets,"},{"citing_arxiv_id":"2601.18155","ref_index":14,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Reconstructing Toponium using Recursive Jigsaw Reconstruction","primary_cat":"hep-ph","submitted_at":"2026-01-26T05:19:15+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Recursive Jigsaw Reconstruction is applied to reconstruct toponium at the ttbar threshold, with two variables proposed to improve signal sensitivity.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2512.00502","ref_index":35,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Measurements of electroweak production of a photon in association with two jets in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2025-11-29T14:16:21+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"First observation of electroweak photon plus two jets production yields a cross section of 202 fb consistent with the standard model prediction of 177 fb at greater than 5 sigma significance.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2511.17310","ref_index":23,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2025-11-21T15:25:58+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Combined LHC data shows no deviation from the standard model in single-photon plus missing momentum events, establishing the strongest limits to date on simplified dark matter models and large extra dimensions.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2511.16394","ref_index":54,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for Higgsinos in final states with low-momentum lepton-track pairs at 13 TeV","primary_cat":"hep-ex","submitted_at":"2025-11-20T14:13:31+00:00","verdict":null,"verdict_confidence":null,"novelty_score":null,"formal_verification":null,"one_line_summary":null,"context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"1706.04965","ref_index":43,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Particle-flow reconstruction and global event description with the CMS detector","primary_cat":"physics.ins-det","submitted_at":"2017-06-15T17:02:16+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"CMS implemented a particle-flow algorithm that reconstructs a complete list of final-state particles per collision, delivering superior performance for jets, hadronic taus, missing transverse momentum, and lepton identification up to 20 pileup interactions.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"direction to the jets of generated particles than the calorimeter jets. The comparison with the data recorded by CMS at a centre-of-mass energy of 8 TeV and the in- fluence of pileup interactions on the PF reconstruction performance are presented in Section 6. 5.1 Jets The jet performance is quantified with a sample of QCD multijet events. Jets are reconstructed with the anti- kT algorithm (radius parameter R = 0.4) [43, 44]. The algorithm clusters either all particles reconstructed by the PF algorithm (PF jets), or the sum of the ECAL and HCAL energies deposited in the calorimeter towers 2 (Calo jets), or all stable particles produced by the event generator excluding neutrinos (Ref jets). Particle-flow jets are studied down to a pT of 15 GeV, while Calo jets with a pT lower than 20 GeV are deemed unreliable and are rejected."}],"limit":50,"offset":0}