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Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data
(2015)NatureThe standard model of particle physics describes the fundamental particles and their interactions via the strong, electromagnetic and weak forces. It provides precise predictions for measurable quantities that can be tested experimentally. The probabilities, or branching fractions, of the strange B meson ( ) and the B0 meson decaying into two oppositely charged muons (μ+ and μ−) are especially interesting because of their sensitivity to ...Journal Article -
Inclusive search for supersymmetry using razor variables in pp collisions at √s=7 TeV
(2013)Physical Review LettersAn inclusive search is presented for new heavy particle pairs produced in √s=7 TeV proton-proton collisions at the LHC using 4.7±0.1 fb−1 of integrated luminosity. The selected events are analyzed in the 2D razor space of MR, an event-by-event indicator of the heavy particle mass scale, and R, a dimensionless variable related to the missing transverse energy. The third-generation sector is probed using the event heavy-flavor content. ...Journal Article -
Search for natural and split supersymmetry in proton-proton collisions at √s=13 TeV in final states with jets and missing transverse momentum
(2018)Journal of High Energy PhysicsA search for supersymmetry (SUSY) is performed in final states comprising one or more jets and missing transverse momentum using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The data were recorded with the CMS detector at the CERN LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The number of signal events is found to agree with the expected background yields from standard model processes. ...Journal Article -
Search for a heavy resonance decaying to a pair of vector bosons in the lepton plus merged jet final state at √s=13 TeV
(2018)Journal of High Energy PhysicsA search for a new heavy particle decaying to a pair of vector bosons (WW or WZ) is presented using data from the CMS detector corresponding to an integrated luminosity of 35.9 fb−1 collected in proton-proton collisions at a centre-of-mass energy of 13 TeV in 2016. One of the bosons is required to be a W boson decaying to eν or μν, while the other boson is required to be reconstructed as a single massive jet with substructure compatible ...Journal Article -
Measurement of associated production of vector bosons and top quark-antiquark pairs in pp collisions at √s=7 TeV
(2013)Physical Review LettersThe first measurement of vector-boson production associated with a top quark-antiquark pair in proton-proton collisions at √s=7 TeV is presented. The results are based on a data set corresponding to an integrated luminosity of 5.0 fb−1, recorded by the CMS detector at the LHC in 2011. The measurement is performed in two independent channels through a trilepton analysis of t¯tZ events and a same-sign dilepton analysis of t¯tV (V=W or Z) ...Journal Article -
Search for Resonant Production of High-Mass Photon Pairs in Proton-Proton Collisions at √s=8 and 13 TeV
(2016)Physical Review LettersA search for the resonant production of high-mass photon pairs is presented. The analysis is based on samples of proton-proton collision data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 3.3 fb−1, respectively. The interpretation of the search results focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4 TeV and with widths, relative to ...Journal Article -
Search for a Light Pseudoscalar Higgs Boson in the Dimuon Decay Channel in pp Collisions at √s=7 TeV
(2012)Physical Review LettersThe dimuon invariant mass spectrum is searched in the range between 5.5 and 14 GeV for a light pseudoscalar Higgs boson a, predicted in a number of new physics models, including the next-to-minimal supersymmetric standard model. The data sample used in the search corresponds to an integrated luminosity of 1.3 fb−1 collected in pp collisions at √s=7 TeV with the CMS detector at the LHC. No excess is observed above the background predictions ...Journal Article -
Search for Heavy Neutrinos and WR Bosons with Right-Handed Couplings in a Left-Right Symmetric Model in pp Collisions at √s=7 TeV
(2012)Physical Review LettersResults are presented from a search for heavy, right-handed muon neutrinos, Nμ, and right-handed WR bosons, which arise in the left-right symmetric extensions of the standard model. The analysis is based on a 5.0 fb−1 sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS detector at the Large Hadron Collider. No evidence is observed for an excess of events over the standard model expectation. For ...Journal Article -
Coherent J/ψ photoproduction in ultra-peripheral PbPb collisions at √sNN= 2.76 TeV with the CMS experiment
(2017)Physics Letters BJournal Article -
Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV
(2018)The European Physical Journal CThe nuclear modification factors of J/ψ and ψ(2S) mesons are measured in PbPb collisions at a centre-of-mass energy per nucleon pair of sNN−−−√=5.02TeV. The analysis is based on PbPb and pp data samples collected by CMS at the LHC in 2015, corresponding to integrated luminosities of 464μb−1 and 28pb-1, respectively. The measurements are performed in the dimuon rapidity range of |y|<2.4 as a function of centrality, rapidity, and transverse ...Journal Article