{"total":17,"items":[{"citing_arxiv_id":"2605.02848","ref_index":44,"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":"[42] CMS Collaboration, \"Performance of reconstruction and identification ofτleptons decaying to hadrons andν τ in pp collisions at √s=13 TeV\",JINST13(2018) P10005, doi:10.1088/1748-0221/13/10/P10005,arXiv:1809.02816. [43] CMS Collaboration, \"Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV\",JINST12(2017) P02014, doi:10.1088/1748-0221/12/02/P02014,arXiv:1607.03663. [44] CMS Collaboration, \"Performance of missing transverse momentum reconstruction in proton-proton collisions at √s=13 TeV using the CMS detector\",JINST14(2019) P07004,doi:10.1088/1748-0221/14/07/P07004,arXiv:1903.06078. [45] CMS Collaboration, \"Performance of the CMS high-level trigger during LHC Run 2\", JINST19(2024) P11021,doi:10.1088/1748-0221/19/11/P11021,"},{"citing_arxiv_id":"2604.27795","ref_index":50,"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":"The JER amounts typically to 15-20% at 30 GeV, 10% at 100 GeV, and 5% at 1 TeV. Jets are required to be isolated from selected charged leptons by ∆R>0.4. The missing transverse momentum vector ⃗p miss T is computed as the negative vector sum of the transverse momenta of all PF candidates, and its magnitude is denoted asp miss T . It includes corrections to the JES [50]. Flavor tagging is performed using the DEEPJETalgorithm [51], which employs a deep neural network to identify jets originating from b, c, or light-flavor quarks or gluons. The discrimi- nator distributions in simulation are calibrated to data using scale factors derived from control samples in data [52]. At the medium working point, the identification efficiency for b jets is"},{"citing_arxiv_id":"2604.27044","ref_index":77,"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":"background","top_context_polarity":"background","context_text":"lation, and appropriate corrections are made [76]. Additional selection criteria are applied to each jet to remove jets potentially mismeasured due to instrumental effects or reconstruction failures [75]. The missing transverse momentum ⃗p miss T is the negative vectorp T sum of all the reconstructed particles in an event, and its magnitude is denoted asp miss T [77]. Muon candidates, within the geometrical acceptance of the muon detectors (|η|<2.4), are re- constructed by combining the information from the silicon tracker and the muon chambers and are required to satisfy a set of quality criteria applied to the fitted track [40]. Electron candidates within|η|<2.5 are reconstructed using an algorithm that associates fitted tracks in the silicon"},{"citing_arxiv_id":"2604.25604","ref_index":34,"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":"background","top_context_polarity":"background","context_text":"0, is also used to render the offline selection more consistent with the trigger requirement. Both measures are corrected to mitigate the effects of pileup and geometric 3 dependencies of the jet energy response. Events passing filters to reject anomalouspmiss T arising from calorimeter noise, misreconstructed particles or vertices, or beam halo interactions are selected [34]. The baseline selection requires pmiss T >300 GeV,H miss T >300 GeV, and at least one jet withp T >100 GeV, targeting signal events with significant initial state radiation. These requirements ensure the effective rejection of SM multijet events and a high trigger efficiency of 99% or greater. Events must contain fewer than five jets, no b-tagged jets, and a minimum∆ϕof 0."},{"citing_arxiv_id":"2604.25538","ref_index":70,"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":"background","top_context_polarity":"background","context_text":"The primary vertex (PV) is taken to be the vertex corresponding to the hardest scattering in the event, evaluated using tracking information alone, as described in Section 9.4.1 of Ref. [69]. The missing transverse momentum vector ⃗p miss T is computed as the negative vector sum of the transverse momenta of all the PF candidates in an event, and its magnitude is denoted asp miss T [70]. The ⃗p miss T is modified to account for corrections to the energy scale of the re- constructed AK4 jets in the event. Anomalous high-p miss T events can arise from a variety of reconstruction failures, detector malfunctions or noncollision backgrounds, and these are re- jected by event filters designed to identify more than 85-90% of the spurious high-pmiss"},{"citing_arxiv_id":"2604.24531","ref_index":21,"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":"surements in data [20]. Jets affected by detector noise or reconstruction failures are discarded, and pileup jets are suppressed using a multivariate discriminator [28]. The missing transverse momentum vector, ⃗p miss T , with magnitudep miss T , is defined as the negative ⃗pT sum of all PF candidates and corrected for AK4 jet energy scale calibrations [21]. The mass-decorrelated version of theX→b b PARTICLENETtagger [30] is used to identify H→b b candidates with a mass-independent probability score ranging from 0 to 1. An anal- ogously mass-decorrelatedX→qq PARTICLENETtagger identifies hadronic vector boson de- cays. To estimate the H mass, the \"soft-drop\" (SD) grooming algorithm [31-33] withβ=0 andz=0."},{"citing_arxiv_id":"2604.20999","ref_index":44,"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":"background","top_context_polarity":"background","context_text":"resonance of unknown mass, the mass-decorrelated version of the tagger offers the best option. The vector ⃗p miss T is computed as the negative vectorp T sum of all the PF candidates in an event, and its magnitude is denoted aspmiss T . The ⃗p miss T is modified to account for corrections to the en- ergy scale and resolution of the reconstructed AK4 jets in the event [44]. Anomalous high-pmiss T events can be due to a variety of reconstruction failures, detector malfunctions, or non-collision backgrounds. Such events are rejected by dedicated filters that are designed to eliminate more than 85-90% of spurious high-pmiss T events with a signal efficiency close to 100% [44]. The vector ⃗Uis defined as the vector sum of ⃗p miss"},{"citing_arxiv_id":"2604.17564","ref_index":42,"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":"selection. We use the loose WP , for which light-flavor and gluon jets are misidentified as top quark and W boson candidates at rates of 2.5 and 5%, respectively. The missing transverse momentum vector ⃗p miss T is computed as the negative vector sum of 5 the transverse momenta of all the PF candidates in an event, and its magnitude is denoted as pmiss T [42]. The ⃗p miss T is modified to account for corrections to the energy scale of the recon- structed jets in the event. To suppress multijet and Z/γ ∗ + jets events without neutrinos in the final state,p miss T is required to be greater than 60 GeV. 3 Simulation of signal and background events Monte Carlo (MC) simulations of signal and SM background events are used to model the"},{"citing_arxiv_id":"2604.14236","ref_index":20,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for heavy resonances decaying into four-lepton final states via light bosons in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-14T22:17:26+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"No significant excess observed in four-lepton events from heavy resonances, setting upper limits on production cross sections for dilepton masses 0.4-15 GeV using novel merged-object techniques.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Finally, the energy of neutral hadrons is obtained from the corresponding corrected ECAL and HCAL energies. The reconstructed particles are used to buildτleptons, jets, and missing transverse momentum (p miss T ) [18-20]. The vector ⃗p miss T is computed as the negative vector sum of the transverse momenta (p T) of all the PF candidates in an event, and its magnitude is denoted asp miss T [20]. The ⃗p miss T is modified to account for corrections to the energy scale of the reconstructed jets in the event [21]. The benchmark signal events X→YY→4ℓand X→ZY→4ℓare generated using the PYTHIA8.240 Monte Carlo (MC) event generator [22] for eachm X =250, 500, 750, 1000, 1500, 2000 GeV andm Y =0.4, 0.6, 0.8, 1, 1.5, 2, 5, 10, 50, 100 GeV. Signal events withm Y =250, 500,"},{"citing_arxiv_id":"2604.10732","ref_index":61,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"A search for microscopic black holes, string balls, and sphalerons in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-12T17:12:30+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"No evidence found; excludes semiclassical black holes below 8.4-11.4 TeV and string balls below 9.0-10.7 TeV at 95% CL, and caps the quark-quark sphaleron fraction above 9 TeV at 0.0034.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"Next, photons are selected only if there is no lepton in the cone. Finally, jets are selected from the remaining objects, provided that there is no lepton or photon in the cone. The missing transverse momentum vector ⃗p miss T is defined as the projection onto the plane perpendicular to the beam axis of the negative vector sum of the momenta of all reconstructed PF objects in an event [61]. Its magnitude is referred to asp miss T . The jet energy corrections are propagated into thep miss T reconstruction. 5 Observables The key observables used in this analysis to discriminate between signal and background in- clude the scalar sum of transverse momenta of all objects in the event (S T), sphericity (S) [62- 6 64], and in the case of the model-dependent search, a novel phase space distance metric is also"},{"citing_arxiv_id":"2604.10729","ref_index":28,"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":"background","top_context_polarity":"background","context_text":"photon+jet, Z+jet, and multijet events are used to account for any residual differences in the jet energy scale between data and simulation [27]. The jet energy resolution amounts typically to 15-20% at 30 GeV, 10% at 100 GeV, and 5% at 1 TeV [27]. Additional selection criteria are applied to each jet to remove jets potentially dominated by anomalous contributions from var- ious subdetector components or reconstruction failures [28]. In the case of AK8 jets, masses are calculated after applying a modified mass-drop algorithm [29, 30], known as the \"soft-drop\" algorithm [31], to remove wide-angle soft and collinear radiation from the jets. 3 Signal and background simulation The signal process pp→T ′ →tϕis generated at leading order for T ′ in a mass range of 0.8-3 TeV, in steps of 100 GeV, using the MC generator MADGRAPH5 aMC@NLO[32] (version"},{"citing_arxiv_id":"2604.09809","ref_index":58,"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":"background","top_context_polarity":"background","context_text":"with the SD mass with the aforementioned parameters [10]. The DEEPJETrecurrent neural network algorithm [57] is used to identify AK4 jets originating from b quarks, as discussed in Section 6. The missing transverse momentum vector ⃗p miss T is computed as the negative vector sum of the transverse momenta of all the PF candidates in an event, and its magnitude is denoted as pmiss T [58]. The ⃗p miss T is modified to account for corrections to the energy scale of the recon- structed jets in the event. 4 Event simulation The PART algorithm is trained on simulated signal events containing jets from boosted Higgs boson-like decays and background events with top quark-like or QCD jets. During training, it is essential that a wide range of jet masses and momenta are included, as described in Sec-"},{"citing_arxiv_id":"2604.05996","ref_index":45,"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":"quarks or gluons, and efficiencies of 90 and 55% for genuine b quark jets. Any jet (j) that over- laps with a selected electron or muon (ℓ), namely that has∆R(ℓ, j) = p (∆ϕ)2 + (∆η) 2 <0.4, is discarded. The missing transverse momentum vector⃗p miss T , with magnitudep miss T , is computed from the PF candidates weighted by their probability to originate from the PV [45], as predicted by the pileup-per-particle identification algorithm [46]. To build reconstructed SUEP objects, all charged PF candidates, independently of whether they are clustered within a hadronic jet, that originate from the PV withp T >1.0 GeV,|η|<2.5 are clustered using the anti-k T algorithm with a distance parameter ofR=1.5, consistent with"},{"citing_arxiv_id":"2604.02594","ref_index":25,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Evidence of ZZ$\\gamma$ production and observation of $4\\ell\\gamma$ in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2026-04-03T00:11:48+00:00","verdict":"CONDITIONAL","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"First evidence for ZZ gamma production at 3.7 sigma and observation of 4 lepton gamma at 5.0 sigma in CMS data at 13 TeV, with measured fiducial cross sections consistent with predictions.","context_count":1,"top_context_role":"method","top_context_polarity":"use_method","context_text":"[23] CMS Collaboration, \"Performance of reconstruction and identification ofτleptons decaying to hadrons andν τ in pp collisions at √s=13 TeV\",JINST13(2018) P10005, doi:10.1088/1748-0221/13/10/P10005,arXiv:1809.02816. [24] CMS Collaboration, \"Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV\",JINST12(2017) P02014, doi:10.1088/1748-0221/12/02/P02014,arXiv:1607.03663. [25] CMS Collaboration, \"Performance of missing transverse momentum reconstruction in proton-proton collisions at √s=13 TeV using the CMS detector\",JINST14(2019) P07004,doi:10.1088/1748-0221/14/07/P07004,arXiv:1903.06078. [26] J. Alwall et al., \"The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations\",JHEP07"},{"citing_arxiv_id":"2511.19563","ref_index":29,"ref_count":1,"confidence":0.88,"is_internal_anchor":false,"paper_title":"Search for light pseudoscalar bosons, pair-produced in Higgs boson decays in the four-electron final state in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","primary_cat":"hep-ex","submitted_at":"2025-11-24T15:36:17+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"No excess observed; first LHC search sets 95% CL upper limits on H to AA to 4e branching fraction down to 10^{-5} for 10-100 MeV masses and short lifetimes.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2511.17310","ref_index":26,"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":50,"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}],"limit":50,"offset":0}