Search
Results
-
Measurement of WZ and ZZ production in pp collisions at √s = 8TeV in final states with b-tagged jets
(2014)The European Physical Journal CMeasurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at s√=8 TeV in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected through its leptonic decay (either W→eν, μν or Z→e+e−, μ+μ−, or νν¯¯¯). The results are based on data corresponding to an integrated luminosity of 18.9 fb−1 collected with the CMS detector at the Large Hadron Collider. The ...Journal Article -
Search for pair production of third-generation scalar leptoquarks and top squarks in proton-proton collisions at √s = 8 TeV
(2014)Physics Letters BA search for pair production of third-generation scalar leptoquarks and supersymmetric top quark partners, top squarks, in final states involving tau leptons and bottom quarks is presented. The search uses events from a data sample of proton–proton collisions corresponding to an integrated luminosity of 19.7 fb−1, collected with the CMS detector at the LHC with s=8 TeV. The number of observed events is found to be in agreement with the ...Journal Article -
Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
(2014)The European Physical Journal CSearches for the direct electroweak production of supersymmetric charginos, neutralinos, and sleptons in a variety of signatures with leptons and W, Z, and Higgs bosons are presented. Results are based on a sample of proton-proton collision data collected at center-of-mass energy s√=8TeV with the CMS detector in 2012, corresponding to an integrated luminosity of 19.5 fb-1. The observed event rates are in agreement with expectations from ...Journal Article -
Measurement of the ratio B(B0s→J/ψf0(980))/B(B0s→J/ψφ(1020)) in pp collisions at √s = 7 TeV
(2016)Physics Letters BA measurement of the ratio of the branching fractions of the Bs0 meson to J/ψf0(980) and to J/ψϕ(1020) is presented. The J/ψ, f0(980), and ϕ(1020) are observed through their decays to μ+μ−, π+π−, and K+K−, respectively. The f0 and the ϕ are identified by requiring |Mπ+π−−974 MeV|<50 MeV and |MK+K−−1020 MeV|<10 MeV. The analysis is based on a data sample of pp collisions at a centre-of-mass energy of 7 TeV, collected by the CMS experiment ...Journal Article -
Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at √s=7 TeV
(2014)The European Physical Journal CA measurement of differential cross sections for the production of a pair of isolated photons in proton–proton collisions at √s=7TeV is presented. The data sample corresponds to an integrated luminosity of 5.0fb−1 collected with the CMS detector. A data-driven isolation template method is used to extract the prompt diphoton yield. The measured cross section for two isolated photons, with transverse energy above 40 and 25GeV respectively, ...Journal Article -
Measurements of the Z Z production cross sections in the 2l2ν channel in proton–proton collisions at √s=7 and 8 TeV and combined constraints on triple gauge couplings
(2015)The European Physical Journal CMeasurements of the Z Z production cross sections in proton–proton collisions at center-of-mass energies of 7 and 8 TeV are presented. Candidate events for the leptonic decay mode ZZ→2l2ν, where l denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6)fb-1 at 7 (8) TeV collected with the CMS experiment. The measured cross sections, σ(pp→ZZ)=5.1+1.5−1.4(stat)+1.4−1.1 ...Journal Article -
Distributions of topological observables in inclusive three- and four-jet events in pp collisions at √s=7 TeV
(2015)The European Physical Journal CThis paper presents distributions of topological observables in inclusive three- and four-jet events produced in pp collisions at a centre-of-mass energy of 7TeV with a data sample collected by the CMS experiment corresponding to a luminosity of 5.1fb−1. The distributions are corrected for detector effects, and compared with several event generators based on two- and multi-parton matrix elements at leading order. Among the considered ...Journal Article -
Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes
(2014)The European Physical Journal CA search for invisible decays of Higgs bosons is performed using the vector boson fusion and associated ZH production modes. In the ZH mode, the Z boson is required to decay to a pair of charged leptons or a bb¯¯¯ quark pair. The searches use the 8┬áTeV pp collision dataset collected by the CMS detector at the LHC, corresponding to an integrated luminosity of up to 19.7┬áfb−1. Certain channels include data from 7┬áTeV collisions corresponding ...Journal Article -
Angular coefficients of Z bosons produced in pp collisions at √s = 8 TeV and decaying to μ+μ− as a function of transverse momentum and rapidity
(2015)Physics Letters BMeasurements of the five most significant angular coefficients, A0 through A4, for Z bosons produced in pp collisions at s=8 TeV and decaying to μ+μ− are presented as a function of the transverse momentum and rapidity of the Z boson. The integrated luminosity of the dataset collected with the CMS detector at the LHC corresponds to 19.7fb−1. These measurements provide comprehensive information about the Z boson production mechanisms, and ...Journal Article -
Search for pair-produced resonances decaying to jet pairs in proton–proton collisions at √s = 8 TeV
(2015)Physics Letters BResults are reported of a general search for pair production of heavy resonances decaying to pairs of hadronic jets in events with at least four jets. The study is based on up to 19.4 fb−1 of integrated luminosity from proton–proton collisions at a center-of-mass energy of 8 TeV, recorded with the CMS detector at the LHC. Limits are determined on the production of scalar top quarks (top squarks) in the framework of R-parity violating ...Journal Article