Search
Results
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Azimuthal correlations in Z +jets events in proton–proton collisions at √s=13TeV
(2023)The European Physical Journal CThe production of Z bosons associated with jets is measured in pp collisions at s√=13TeV with data recorded with the CMS experiment at the LHC corresponding to an integrated luminosity of 36.3fb⁻¹. The multiplicity of jets with transverse momentum p_>30GeV is measured for different regions of the Z boson’s p_T(Z ), from lower than 10GeV to higher than 100GeV. The azimuthal correlation Δϕ between the Z boson and the leading jet, as well ...Journal Article -
Search for Higgs Boson and Observation of Z Boson through Their Decay into a Charm Quark-Antiquark Pair in Boosted Topologies in Proton-Proton Collisions at √s = 13 TeV
(2023)Physical Review LettersA search for the standard model (SM) Higgs boson (H) produced with transverse momentum (p_T) greater than 450 GeV and decaying to a charm quark-antiquark (cc¯) pair is presented. The search is performed using proton-proton collision data collected at √s = 13 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb⁻¹. Boosted H → cc¯ decay products are reconstructed as a single large-radius jet and identified ...Journal Article -
Search for Nonresonant Pair Production of Highly Energetic Higgs Bosons Decaying to Bottom Quarks
(2023)Physical Review LettersA search for nonresonant Higgs boson (H) pair production via gluon and vector boson (V) fusion is performed in the four-bottom-quark final state, using proton-proton collision data at 13 TeV corresponding to 138 fb−1 collected by the CMS experiment at the LHC. The analysis targets Lorentz-boosted H pairs identified using a graph neural network. It constrains the strengths relative to the standard model of the H self-coupling and the ...Journal Article -
Probing Heavy Majorana Neutrinos and the Weinberg Operator through Vector Boson Fusion Processes in Proton-Proton Collisions at √s=13 TeV
(2023)Physical Review LettersThe first search exploiting the vector boson fusion process to probe heavy Majorana neutrinos and the Weinberg operator at the LHC is presented. The search is performed in the same-sign dimuon final state using a proton-proton collision dataset recorded at √s=13 TeV, collected with the CMS detector and corresponding to a total integrated luminosity of 138 fb−1. The results are found to agree with the predictions of the standard model. ...Journal Article -
Search for direct pair production of supersymmetric partners of τ leptons in the final state with two hadronically decaying τ leptons and missing transverse momentum in proton-proton collisions at √s = 13 TeV
(2023)Physical Review DA search for the direct production of a pair of τ sleptons, the supersymmetric partners of τ leptons, is presented. Each τ slepton is assumed to decay to a τ lepton and the lightest supersymmetric particle (LSP), which is assumed to be stable and to not interact in the detector, leading to an imbalance in the total reconstructed transverse momentum. The search is carried out in events identified as containing two τ leptons, each decaying ...Journal Article -
CMS PYTHIA 8 colour reconnection tunes based on underlying-event data
(2023)The European Physical Journal CNew sets of parameter tunes for two of the colour reconnection models, quantum chromodynamics-inspired and gluon-move, implemented in the PYTHIA 8 event generator, are obtained based on the default CMS PYTHIA 8 underlying-event tune, CP5. Measurements sensitive to the underlying event performed by the CMS experiment at centre-of-mass energies s√=7 and 13TeV, and by the CDF experiment at 1.96TeV are used to constrain the parameters of ...Journal Article -
Search for narrow resonances in the b-tagged dijet mass spectrum in proton-proton collisions at √s = 13 TeV
(2023)Physical Review DA search is performed for narrow resonances decaying to final states of two jets, with at least one jet originating from a b quark, in proton-proton collisions at √s = 13 TeV. The data set corresponds to an integrated luminosity of 138 fb⁻¹ collected with the CMS detector at the LHC. Jets originating from energetic b hadrons are identified through a b-tagging algorithm that utilizes a deep neural network or the presence of a muon inside ...Journal Article -
Measurement of the differential tt¯ production cross section as a function of the jet mass and extraction of the top quark mass in hadronic decays of boosted top quarks
(2023)The European Physical Journal CA measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton + jets channel of top quark pair production (tt¯) events, where the lepton is an electron or muon. The products of the hadronic top quark decay are reconstructed using a single large-radius jet with transverse momentum greater than 400 GeV. The data were collected with the CMS detector at the ...Journal Article -
Search for light Higgs bosons from supersymmetric cascade decays in pp collisions at √s =13TeV
(2023)The European Physical Journal CA search is reported for pairs of light Higgs bosons (H₁) produced in supersymmetric cascade decays in final states with small missing transverse momentum. A data set of LHC pp collisions collected with the CMS detector at √s = 13TeV and corresponding to an integrated luminosity of 138 fb⁻¹ is used. The search targets events where both H₁ bosons decay into pairs that are reconstructed as large-radius jets using substructure techniques. ...Journal Article -
Measurements of Higgs boson production in the decay channel with a pair of τ leptons in proton–proton collisions at √s = TeV
(2023)The European Physical Journal CMeasurements of Higgs boson production, where the Higgs boson decays into a pair of τ leptons, are presented, using a sample of proton-proton collisions collected with the CMS experiment at a center-of-mass energy of , corresponding to an integrated luminosity of 138 fb⁻¹. Three analyses are presented. Two are targeting Higgs boson production via gluon fusion and vector boson fusion: a neural network based analysis and an analysis based ...Journal Article