447 Result(s)
within
English
Quantum Field Theories, String Theory
Quantum Physics
**u-E Xu
Article
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Open AccessMeasurement of the t-channel single-top-quark production cross section and of the |V tb| CKM matrix element in pp collisions at \( \sqrt{s} \) = 8 TeV
Measurements are presented of the t-channel single-top-quark production cross section in proton-proton collisions at \( \sqrt{s} \) ...
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Open AccessSearch for pair production of excited top quarks in the lepton + jets final state
A search is performed for pair-produced spin-3/2 excited top quarks
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Open AccessSearch for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at \( \sqrt{s} \) = 8 TeV
A search is reported for massive resonances decaying into a quark and a vector boson (W or Z), or two vector bosons (WW, WZ, or ZZ). The analysis is performed on an inclusive sample of multijet events correspo...
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Open AccessSearch for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at \( \sqrt{s} \) = 8 TeV
A search for new resonances decaying to WW, ZZ, or WZ is presented. Final states are considered in which one of the vector bosons decays leptonically and the other hadronically. Results are based on data corre...
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Open AccessSearch for the associated production of the Higgs boson with a top-quark pair
A search for the standard model Higgs boson produced in association with a top-quark pair
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Open AccessMeasurement of prompt J/ψ pair production in pp collisions at \( \sqrt{s} \) = 7 Tev
Production of prompt J/ψ meson pairs in proton-proton collisions at ...
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Open AccessStudy of hadronic event-shape variables in multijet final states in pp collisions at \( \sqrt{s} = 7 \) TeV
Event-shape variables, which are sensitive to perturbative and nonperturbative aspects of quantum chromodynamic (QCD) interactions, are studied in multijet events recorded in proton-proton collisions at ...
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Open AccessSearch for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions
A search for neutral Higgs bosons in the minimal supersymmetric extension of the standard model (MSSM) decaying to tau-lepton pairs in pp collisions is performed, using events recorded by the CMS experiment at...
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Open AccessSearch for standard model production of four top quarks in the lepton + jets channel in pp collisions at \( \sqrt{s}=8 \) TeV
A search is presented for standard model (SM) production of four top quarks ...
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Open AccessIdentification techniques for highly boosted W bosons that decay into hadrons
In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced w...
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Open AccessMeasurement of the W boson helicity in events with a single reconstructed top quark in pp collisions at \( \sqrt{s}=8 \) TeV
A measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in...
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Open AccessMeasurement of the ratio of the production cross sections times branching fractions of B c ± → J/ψπ ± and B± → J/ψK ± and \( \mathrm{\mathcal{B}}\left({\mathrm{B}}_{\mathrm{c}}^{\pm}\to \mathrm{J}/\psi {\pi}^{\pm }{\pi}^{\pm }{\pi}^{\mp}\right)/\mathrm{\mathcal{B}}\left({\mathrm{B}}_{\mathrm{c}}^{\pm}\to \mathrm{J}/\psi {\pi}^{\pm}\right) \) in pp collisions at \( \sqrt{s}=7 \) TeV
The ratio of the production cross sections times branching fractions ...
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Open AccessSearch for disappearing tracks in proton-proton collisions at \( \sqrt{s}=8 \) TeV
A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. Disappearing tracks are identified as those with little or no associ...
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Open AccessStudy of Z production in PbPb and pp collisions at \( \sqrt{s_{\mathrm{NN}}}=2.76 \) TeV in the dimuon and dielectron decay channels
The production of Z bosons is studied in the dimuon and dielectron decay channels in PbPb and pp collisions at ...
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Open AccessSearch for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at \( \sqrt{s}=8 \) TeV
Dimuon and dielectron mass spectra, obtained from data resulting from proton-proton collisions at 8 TeV and recorded by the CMS experiment, are used to search for both narrow resonances and broad deviations fr...
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Open AccessSearch for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at \( \sqrt{s} \) = 8 TeV
A search is presented for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated lumin...
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Open AccessMeasurement of the Zγ production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings
The cross section for the production of Zγ in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb−1. Events ...
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Open AccessSearches for supersymmetry using the M T2 variable in hadronic events produced in pp collisions at 8 TeV
Searches for supersymmetry (SUSY) are performed using a sample of hadronic events produced in 8 TeV pp collisions at the CERN LHC. The searches are based on the M T2 variable, which is a measure o...
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Open AccessSearch for vector-like T quarks decaying to top quarks and Higgs bosons in the all-hadronic channel using jet substructure
A search is performed for a vector-like heavy T quark that is produced in pairs and that decays to a top quark and a Higgs boson. The data analysed correspond to an integrated luminosity of 19.7 fb−1 collected wi...
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Open AccessSearches for third-generation squark production in fully hadronic final states in proton-proton collisions at \( \sqrt{s}=8 \) TeV
Searches for third-generation squarks in fully hadronic final states are presented using data samples corresponding to integrated luminosities of 19.4 or 19.7 fb−1, collected at a centre-of-mass energy of 8 TeV w...
