118 Result(s)
within
Classical and Quantum Gravitation, Relativity Theory
Quantum Field Theories, String Theory
D. Liang
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Article
Open AccessSearch for exclusive or semi-exclusive γγ production and observation of exclusive and semi-exclusive e+e− production in pp collisions at \( \sqrt{s}=7 \) TeV
A search for exclusive or semi-exclusive γγ production, pp → p(*) + γγ + p(*) (where p* stands for a diffractively-dissociated proton), and the observation of exclusive and semi-exclusive e+e− production, pp → p(...
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Open AccessSearch for electroweak production of charginos and neutralinos using leptonic final states in pp collisions at \( \sqrt{s}=7 \) TeV
The 2011 dataset of the CMS experiment, consisting of an integrated luminosity of 4.98 fb−1 of pp collisions at \( \sqrt{s}=7 \) ...
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Open AccessSearch for new physics with long-lived particles decaying to photons and missing energy in pp collisions at \( \sqrt{s}=7 \) TeV
A search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravit...
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Open AccessSearch for resonant \( \mathrm{t}\overline{\mathrm{t}} \) production in lepton+jets events in pp collisions at \( \sqrt{s}=7 \) TeV
A model-independent search for the production of heavy resonances decaying into top-antitop quark pairs is presented. The search is based on events containing one lepton (muon or electron) and at least two jet...
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Open AccessMeasurement of the single-top-quark t-channel cross section in pp collisions at \( \sqrt{s}=7 \) TeV
A measurement of the single-top-quark t-channel production cross section in pp collisions at \( \sqrt{s}=7 \) TeV with the CMS de...
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Open AccessObservation of Z decays to four leptons with the CMS detector at the LHC
The first observation of the Z boson decaying to four leptons in proton-proton collisions is presented. The analyzed data set corresponds to an integrated luminosity of 5.02 fb−1 at
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Open AccessSearch for third-generation leptoquarks and scalar bottom quarks in pp collisions at \( \sqrt{s}=7\;TeV \)
Results are presented from a search for third-generation leptoquarks and scalar bottom quarks in a sample of proton-proton collisions at \( \sqrt{s}=7\;TeV \) collected by the CMS ex...
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Open AccessMeasurement of the top-quark mass in \( \mathrm{t}\overline{\mathrm{t}} \) events with lepton+jets final states in pp collisions at \( \sqrt{s}=7 \) TeV
The mass of the top quark is measured using a sample of \( \mathrm{t}\overline{\mathrm{t}} \) candidate events with one electron ...
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Open AccessSearch for narrow resonances and quantum black holes in inclusive and b-tagged dijet mass spectra from pp collisions at \( \sqrt{s}=7 \) TeV
A search for narrow resonances and quantum black holes is performed in inclusive and b-tagged dijet mass spectra measured with the CMS detector at the LHC. The data set corresponds to 5 fb−1 of integrated luminos...
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Open AccessMeasurement of the ZZ production cross section and search for anomalous couplings in 2ℓ2ℓ′ final states in pp collisions at \( \sqrt{s}=7 \) TeV
A measurement is presented of the ZZ production cross section in the ZZ → 2ℓ2ℓ′ decay mode with ℓ = e, μ and ℓ′ = e, μ, τ in proton-proton collisions at ...
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Open AccessSearch for supersymmetry in final states with missing transverse energy and 0, 1, 2, or ≥3 b-quark jets in 7 TeV pp collisions using the variable α T
A search for supersymmetry in final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of ...
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Open AccessSearch for heavy quarks decaying into a top quark and a W or Z boson using lepton + jets events in pp collisions at \( \sqrt{s}=7 \) TeV
Results are presented from a search for the pair-production of heavy quarks, \( \mathrm{Q}\overline{\mathrm{Q}} \) , that decay exclusively into a top quark and a W or Z boson. The se...
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Open AccessSearch for exotic resonances decaying into WZ/ZZ in pp collisions at \( \sqrt{s}=7 \) TeV
A search for new exotic particles decaying to the VZ final state is performed, where V is either a W or a Z boson decaying into two overlap** jets and the Z decays into a pair of electrons, muons or neutrino...
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Open AccessSearch in leptonic channels for heavy resonances decaying to long-lived neutral particles
A search is performed for heavy resonances decaying to two long-lived massive neutral particles, each decaying to leptons. The experimental signature is a distinctive topology consisting of a pair of oppositel...
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Open AccessSearch for new physics in events with same-sign dileptons and b jets in pp collisions at \( \sqrt{s}=8 \) TeV
A search for new physics is performed using events with isolated same-sign leptons and at least two bottom-quark jets in the final state. Results are based on a sample of proton-proton collisions collected at ...
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Open AccessSearch for new physics in events with photons, jets, and missing transverse energy in pp collisions at \( \sqrt{s}=7 \) TeV
A search for physics beyond the standard model involving events with one or more photons, jets, and missing transverse energy has been performed by the CMS experiment. The data sample corresponds to an integra...
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Open AccessStudy of the underlying event at forward rapidity in pp collisions at \( \sqrt{s}=0.9,2.76,\;\mathrm{and}\;7\;\mathrm{TeV} \)
The underlying event activity in proton-proton collisions at forward pseudo-rapidity (−6.6 < η < −5.2) is studied with the CMS detector at the LHC, using a novel observable: the ratio of the forward energy densit...
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Open AccessMeasurement of the X(3872) production cross section via decays to J/ψπ + π − in pp collisions at \( \sqrt{s}=7 \) TeV
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Open AccessMeasurement of the \( \mathrm{t}\overline{\mathrm{t}} \) production cross section in the all-jet final state in pp collisions at \( \sqrt{s}=7 \) TeV
A measurement is presented of the \( \mathrm{t}\overline{\mathrm{t}} \) production cross section \( \left( {{\sigma_{{\mathrm{t}\overline{\mathrm{t}}}}}} \right) \) ...
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Open AccessStudies of jet mass in dijet and W/Z + jet events
