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Inclusive search for supersymmetry in pp collisions at √s=13 TeV using razor variables and boosted object identification in zero and one lepton final states
(2019)Journal of High Energy PhysicsAn inclusive search for supersymmetry (SUSY) using the razor variables is performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of 35.9 fb−1, collected with the CMS experiment in 2016 at a center-of-mass energy of s√=13 TeV. The search looks for an excess of events with large transverse energy, large jet multiplicity, and large missing transverse momentum. The razor kinematic variables are ...Journal Article -
Measurement of differential cross sections for Z boson pair production in association with jets at √s = 8 and 13 TeV
(2019)Physics Letters BJournal Article -
Non-Gaussian elliptic-flow fluctuations in PbPb collisions at √sNN = 5.02 TeV
(2019)Physics Letters BEvent-by-event fluctuations in the elliptic-flow coefficient v2 are studied in PbPb collisions at √sNN=5.02 TeV using the CMS detector at the CERN LHC. Elliptic-flow probability distributions p(v2) for charged particles with transverse momentum 0.3<pT<3.0 GeV/c and pseudorapidity |η|<1.0 are determined for different collision centrality classes. The moments of the p(v2) distributions are used to calculate the v2 coefficients based on ...Journal Article -
Search for rare decays of Z and Higgs bosons to J / ψ and a photon in proton-proton collisions at √s = 13 TeV
(2019)The European Physical Journal CA search is presented for decays of Z and Higgs bosons to a J/ψ meson and a photon, with the subsequent decay of the J/ψ to μ+μ−. The analysis uses data from proton-proton collisions with an integrated luminosity of 35.9fb−1 at s√=13TeV collected with the CMS detector at the LHC. The observed limit on the Z→J/ψγ decay branching fraction, assuming that the J/ψ meson is produced unpolarized, is 1.4×10−6 at 95% confidence level, which ...Journal Article -
Study of the underlying event in top quark pair production in pp collisions at 13 TeV
(2019)The European Physical Journal CMeasurements of normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event in top quark and antiquark pair production are presented. The measurements are performed in proton-proton collisions at a center-of-mass energy of 13 TeV, and are based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.9 ...Journal Article -
Search for long-lived particles decaying into displaced jets in proton-proton collisions at root s=13 TeV
(2019)Physical Review DA search for long-lived particles decaying into jets is presented. Data were collected with the CMS detector at the LHC from proton-proton collisions at a center-of-mass energy of 13 TeV in 2016, corresponding to an integrated luminosity of 35.9 fb−1. The search examines the distinctive topology of displaced tracks and secondary vertices. The selected events are found to be consistent with standard model predictions. For a simplified ...Journal Article -
Measurements of t t ¯ differential cross sections in proton-proton collisions at √s=13 TeV using events containing two leptons
(2019)Journal of High Energy PhysicsMeasurements of differential top quark pair tt¯ cross sections using events produced in proton-proton collisions at a centre-of-mass energy of 13 TeV containing two oppositely charged leptons are presented. The data were recorded by the CMS experiment at the CERN LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The differential cross sections are presented as functions of kinematic observables of the top quarks and ...Journal Article -
Search for new particles decaying to a jet and an emerging jet
(2019)Journal of High Energy PhysicsA search is performed for events consistent with the pair production of a new heavy particle that acts as a mediator between a dark sector and normal matter, and that decays to a light quark and a new fermion called a dark quark. The search is based on data corresponding to an integrated luminosity of 16.1 fb−1 from proton-proton collisions at s√=13 TeV collected by the CMS experiment at the LHC in 2016. The dark quark is charged only ...Journal Article -
Search for pair production of second-generation leptoquarks at s =13 TeV
(2019)Physical Review DA search for pair production of second-generation leptoquarks is performed using proton-proton collision data collected at √s=13 TeV in 2016 with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 35.9 fb−1. Final states with two muons and two jets, or with one muon, two jets, and missing transverse momentum are considered. Second-generation scalar leptoquarks with masses less than 1530(1285) GeV are excluded ...Journal Article -
Search for the Higgs Boson Decaying to Two Muons in Proton-Proton Collisions at √s=13 TeV
(2019)Physical Review LettersA search for the Higgs boson decaying to two oppositely charged muons is presented using data recorded by the CMS experiment at the CERN LHC in 2016 at a center-of-mass energy √s=13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. Data are found to be compatible with the predicted background. For a Higgs boson with a mass of 125.09 GeV, the 95% confidence level observed (background-only expected) upper limit on the production ...Journal Article