Browsing Natural and Mathematical Sciences by Subject "LHC"
Now showing items 21-40 of 58
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Measurement of the top quark pair production cross section in proton-proton collisions at s =13 TeV
(American Physical Society, 2016-02-05)The top quark pair production cross section is measured for the first time in proton-proton collisions at s√=13 TeV by the CMS experiment at the CERN LHC, using data corresponding to an integrated luminosity of 43 pb−1. ... -
Measurement of the W+W- cross section in pp collisions at and limits on anomalous WW gamma and WWZ couplings
(Springer Science+Business Media, 2013-10)A measurement of W+W- production in pp collisions at is presented. The data were collected with the CMS detector at the LHC, and correspond to an integrated luminosity of 4.92 +/- 0.11 fb(-1). The W+W- candidates consist ... -
Measurement of WZ and ZZ production in pp collisions at in final states with b-tagged jets
(Springer Science+Business Media, 2014-08)Measurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected through its ... -
Measurements of jet multiplicity and differential production cross sections of Z plus jets events in proton-proton collisions at root s=7 TeV
(American Physical Society, 2015-03-01)Measurements of differential cross sections are presented for the production of a Z boson and at least one hadronic jet in proton-proton collisions at s√=7 TeV, recorded by the CMS detector, using a data sample corresponding ... -
Measurements of the tt¯tt¯ production cross section in lepton+jets final states in pp collisions at 8 TeVTeV and ratio of 8 to 7 TeVTeV cross sections
(Springer International, 2017)A measurement of the top quark pair production () cross section in proton-proton collisions at the centre-of-mass energy of 8 is presented using data collected with the CMS detector at the LHC, corresponding to an integrated ... -
Observation of the associated production of a single top quark - and a W boson in pp collisions at root s=8 TeV
(American Physical Society, 2014-06-13)The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2 fb(-1) of proton-proton collisions ... -
Observation of the diphoton decay of the Higgs boson and measurement of its properties
(Springer Nature, 2014-10)Observation of the diphoton decay mode of the recently discovered Higgs boson and measurement of some of its properties are reported. The analysis uses the entire dataset collected by the CMS experiment in proton-proton ... -
Search for a heavy composite Majorana neutrino in events with dilepton signatures from proton-proton collisions at √s = 13 TeV
(Elsevier, 2023-08-10)Results are presented of a search for a heavy Majorana neutrino [Formula presented] decaying into two same-flavor leptons ℓ (electrons or muons) and a quark-pair jet. A model is considered in which the [Formula presented] ... -
Search for a non-standard-model Higgs boson decaying to a pair of new light bosons in four-muon final states
(Elsevier, 2013-11-04)Results are reported from a search for non-standard-model Higgs boson decays to pairs of new light bosons, each of which decays into the μ+μ− final state. The new bosons may be produced either promptly or via a decay chain. ... -
Search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks using a matrix element method
(Springer Nature, 2015-06)A search for a standard model Higgs boson produced in association with a top-quark pair and decaying to bottom quarks is presented. Events with hadronic jets and one or two oppositely charged leptons are selected from a ... -
Search for a W ' or Techni-rho Decaying into WZ in pp Collisions at root s=7 TeV
(American Physical Society, 2012-10-05)A search is performed in pp collisions at root s 7 TeV for exotic particles decaying via WZ to final states with electrons and muons. The data sample corresponds to an integrated luminosity of approximately 5 fb(-1). No ... -
Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV
(American Physical Society, 2014-08-01)A search for physics beyond the standard model in events with at least three leptons is presented. The data sample, corresponding to an integrated luminosity of 19.5 fb−1 of proton-proton collisions with center-of-mass ... -
Search for baryon number violation in top-quark decays
(Elsevier, 2014-04-04)A search for baryon number violation (BNV) in top-quark decays is performed using pp collisions produced by the LHC at View the MathML source. The top-quark decay considered in this search results in one light lepton (muon ... -
Search for charged Higgs bosons produced via vector boson fusion and decaying into a pair of W and Z bosons using pp collisions at √ s=13 TeV
(American Physical Society, 2017-10-04)A search for charged Higgs bosons produced via vector boson fusion and decaying into W and Z bosons using proton-proton collisions at root s = 13 TeV is presented. The data sample corresponds to an integrated luminosity ... -
Search for dark matter, extra dimensions, and unparticles in monojet events in proton-proton collisions at root s=8TeV
(Springer Nature, 2015-05)Results are presented from a search for particle dark matter (DM), extra dimensions, and unparticles using events containing a jet and an imbalance in transverse momentum. The data were collected by the CMS detector in ... -
Search for Higgs boson pair production in the bbττ final state in proton-proton collisions at √(s) = 8 TeV
(American Physical Society, 2017-10-20)Results are presented from a search for production of Higgs boson pairs (HH) where one boson decays to a pair of b quarks and the other to a t lepton pair. This work is based on proton-proton collision data collected by ... -
Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes
(Springer Science+Business Media, 2014-08)A 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. ... -
Search for jet extinction in the inclusive jet-p(T) spectrum from proton-proton collisions at root s=8 TeV
(American Physical Society, 2014-08-01)The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7 fb-1 of proton-proton collisions at a ... -
Search for leptophobic Z′ bosons decaying into four-lepton final states in proton–proton collisions at √s = 8 TeV
(Elsevier, 2017-10-10)A search for heavy narrow resonances decaying into four-lepton final states has been performed using proton-proton collision data at root s= 8 TeVcollected by the CMS experiment, corresponding to an integrated luminosity ... -
Search for long-lived particles in events with photons and missing energy in proton-proton collisions at root s=7 TeV
(Elsevier, 2013-05-24)Results are presented from a search for long-lived neutralinos decaying into a photon and an invisible particle, a signature associated with gauge-mediated supersymmetry breaking in supersymmetric models. The analysis is ...
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