Browsing Natural and Mathematical Sciences by Issue Date
Now showing items 421-440 of 1083
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Search for dark matter inproton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets
(Springer International Publishing, 2016-12-16)A search is presented for an excess of events with large missing transverse momentum in association with at least one highly energetic jet, in a data sample of protonproton collisions at a centre-of-mass energy of 8 TeV. ... -
Searches for invisible decays of the Higgs boson in pp collisions at root S=7, 8, and 13 TeV
(Springer International, 2017)Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 fb−1 at centre-of-mass energies of 7, 8, and ... -
Search for top squark pair production in compressed-mass-spectrum scenarios in proton–proton collisions at s√=8 TeV using the αT variable
(Elsevier, 2017)An inclusive search is performed for supersymmetry in final states containing jets and an apparent imbalance in transverse momentum, View the MathML source, due to the production of unobserved weakly interacting particles ... -
Measurement of the transverse momentum spectra of weak vector bosons produced in proton-proton collisions at root s=8TeV
(Springer International, 2017)The transverse momentum spectra of weak vector bosons are measured in the CMS experiment at the LHC. The measurement uses a sample of proton-proton collisions at s√=8s=8 TeV, collected during a special low-luminosity ... -
Search for high-mass Z gamma resonances in e(+)e(-)gamma and mu(+)mu(-)gamma final states in proton-proton collisions at root s=8 and 13 TeV
(Springer International, 2017)This paper describes the search for a high-mass narrow-width scalar particle decaying into a Z boson and a photon. The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at ... -
Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search
(Elsevier, 2017)A search for the resonant production of high-mass photon pairs is presented. The search focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4.5 TeV, and with widths, relative to the mass, between 1.4×10−4 ... -
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 charge-dependent azimuthal correlations in p-Pb collisions and its implication for the search for the chiral magnetic effect
(APS, 2017)Charge-dependent azimuthal particle correlations with respect to the second-order event plane in p−Pb and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been studied with the CMS experiment at ... -
Measurement of the jet mass in highly boosted tt events from pp collisions at √s = 8 TeV
(Springer International Publishing, 2017)The first measurement of the jet mass mjetmjet of top quark jets produced in tt¯tt¯ events from pp collisions at s√=8s=8 TeVTeV is reported for the jet with the largest transverse momentum pTpT in highly boosted hadronic ... -
Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
(IOP , 2017)Improved jet energy scale corrections, based on a data sample corresponding to an integrated luminosity of 19.7 fb-1 collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 8 TeV, are ... -
Search for anomalous couplings in boosted WW/WZ→ℓνqq‾ production in proton–proton collisions at √s = 8 TeV
(Elsevier, 2017)This Letter presents a search for new physics manifested as anomalous triple gauge boson couplings in WW and WZ diboson production in proton–proton collisions. The search is performed using events containing a W boson that ... -
Search for dark matter and supersymmetry with a compressed mass spectrum in the vector boson fusion topology in proton-proton collisions at root s=8 TeV
(APS, 2017)A first search for pair production of dark matter candidates through vector boson fusion in proton-proton collisions at √s=8 TeV is performed with the CMS detector. The vector boson fusion topology enhances missing ... -
Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at root s=8 TeV
(APS, 2017)Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to ... -
Observation of the decay B+ -> psi(2S)phi(1020)K+ in pp collisions at root s=8 TeV
(Elsevier, 2017)The decay B+→ψ(2S)ϕ(1020)K+ is observed for the first time using data collected from pp collisions at View the MathML source by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6View the MathML ... -
Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV
(Springer International, 2017)Single top quark events produced in the t channel are used to set limits on anomalous Wtb couplings and to search for top quark flavour-changing neutral current (FCNC) interactions. The data taken with the CMS detector at ... -
The CMS trigger system
(IOP , 2017)This paper describes the CMS trigger system and its performance during Run 1 of the LHC. The trigger system consists of two levels designed to select events of potential physics interest from a GHz (MHz) interaction rate ... -
Search for CP violation in t(t)over-bar production and decay in proton-proton collisions at root s=8 TeV
(Springer International, 2017)The results of a first search for CP violation in the production and decay of top quark-antiquark ( tt¯tt¯ ) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where ... -
Evidence for collectivity in pp collisions at the LHC
(Elsevier, 2017)Measurements of two- and multi-particle angular correlations in pp collisions at View the MathML source are presented as a function of charged-particle multiplicity. The data, corresponding to integrated luminosities of ... -
Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at root s=13 TeV
(Springer International, 2017)A search for new particles has been conducted using events with two high transverse momentum (pT) τ leptons that decay hadronically, at least two high-pT jets, and missing transverse energy from the τ lepton decays. The ... -
Choquet-Monge-Ampère classes
(Springer Nature, 2017)We introduce and study Choquet-Monge-Ampère classes on compact Kähler manifolds. They consist of quasi-plurisubharmonic functions whose sublevel sets have small enough asymptotic Monge-Ampère capacity. We compare them with ...
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