373 Result(s)
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English
Quantum Field Theories, String Theory
R Castello
Article
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Open AccessSearch for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at \( \sqrt {s} = 7 \) TeV
A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at
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Open AccessMeasurement of the \( {{\rm t}\bar{\rm t}} \) production cross section and the top quark mass in the dilepton channel in pp collisions at \( \sqrt {s} = 7 \) TeV
The \( {{\rm t}\bar{\rm t}} \) production cross section and top quark mass are measured in proton-proton collisions at
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Open AccessLong-range and short-range dihadron angular correlations in central PbPb collisions at \( \sqrt {{{s_{\text{NN}}}}} \) = 2.76 TeV
First measurements of dihadron correlationsfor charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV over a broad range in relative pseudorapidity (∆...
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Open AccessSearch for light resonances decaying into pairs of muons as a signal of new physics
A search for groups of collimated muons is performed using a data sample collected by the CMS experiment at the LHC, at a centre-of-mass energy of 7TeV, and corresponding to an integrated luminosity of 35 pb−1. T...
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Open AccessSearch for supersymmetry in events with b jets and missing transverse momentum at the LHC
A search for supersymmetry is presented using a sample of events with b jets and missing transverse momentum. The search uses a data sample of proton-proton collisions at a centre-of-mass energy of 7 TeV, corr...
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Open AccessSearch for same-sign top-quark pair production at \( \sqrt {s} = 7 \) TeV and limits on flavour changing neutral currents in the top sector
An inclusive search for same-sign top-quark pair production in pp collisions at \( \sqrt {s} = 7 \) TeV is performed us...
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Open AccessCharged particle transverse momentum spectra in pp collisions at \( \sqrt {s} = 0.9 \) and 7 TeV
The charged particle transverse momentum (p T) spectra are presented for pp collisions at \( \sqrt {s} = 0.9 \) ...
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Open AccessMeasurement of the inclusive Z cross section via decays to tau pairs in pp collisions at \( \sqrt {s} = 7 \) TeV
The first measurement of inclusive Z → τ + τ − production in pp collisions at the LHC is presented, in the final states μ + hadrons, e + had...
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Open AccessDependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at \( \sqrt {{{s_{\text{NN}}}}} = 2.76 \) TeV
A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76 TeV per nucleon pair. The data sample is...
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Open AccessSearch for new physics with jets and missing transverse momentum in pp collisions at \( \sqrt {s} = 7 \) TeV
A search for new physics is presented based on an event signature of at least three jets accompanied by large missing transverse momentum, using a data sample corresponding to an integrated luminosity of 36 pb−1 ...
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Open AccessSearch for supersymmetry in pp collisions at \( \sqrt {s} = 7 \) TeV in events with a single lepton, jets, and missing transverse momentum
Results are reported from a search for physics beyond the standard model in proton-proton collisions at a center-of-mass energy of 7 TeV, focusing on the signature with a single, isolated, high-transverse-mome...
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Open AccessMeasurement of the \(\mathrm{{t\bar{t}}}\) production cross section in pp collisions at \(\sqrt{s}=7\) TeV using the kinematic properties of events with leptons and jets
A measurement of the \(\mathrm{t{\bar{t}}}\) production cross section in proton-proton collisions at a centre-of-mass energy of 7...
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Open AccessMeasurement of the underlying event activity at the LHC with \( \sqrt {s} = 7 \) TeV and comparison with \( \sqrt {s} = 0.9 \) TeV
A measurement of the underlying activity in events with a jet of transverse momentum in the several GeV region is performed in proton-proton collisions at
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Open AccessMeasurement of the Drell-Yan cross section in pp collisions at \( \sqrt {s} = 7 \) TeV
The Drell-Yan differential cross section is measured in pp collisions at \( \sqrt {s} = 7 \) TeV, from a data sample collected wi...
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Open AccessMeasurement of the inclusive W and Z production cross sections in pp collisions at \( \sqrt {s} = 7 \) TeV with the CMS experiment
A measurement of inclusive W and Z production cross sections in pp collisions at \( \sqrt {s} = 7 \) TeV is presented. The electr...
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Open AccessMeasurement of energy flow at large pseudorapidities in pp collisions at \( \sqrt {s} = 0.{9} \) and 7 TeV
The energy flow, dE/dη, is studied at large pseudorapidities in proton-proton collisions at the LHC, for centre-of-mass energies of 0.9 and 7 TeV. The measurements are made using the CMS detector in the pseudorap...
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Open AccessJet production rates in association with W and Z bosons in pp collisions at \( \sqrt {s} = 7 {\text{TeV}} \)
Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recorded by CMS at
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Open AccessExclusive γγ → μ + μ − production in proton-proton collisions at \( \sqrt {s} = {7} \) TeV
A measurement of the exclusive two-photon production of muon pairs in proton-proton collisions at \( \sqrt {s} = {7} \) TeV, pp →...
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Open AccessForward energy flow, central charged-particle multiplicities, and pseudorapidity gaps in W and Z boson events from pp collisions at \(\sqrt{s}= 7\) TeV
A study of forward energy flow and central charged-particle multiplicity in events with W and Z bosons decaying into leptons is presented. The analysis uses a sample of 7 TeV pp collisions, corresponding to an...
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Open AccessMeasurement of the production cross section for pairs of isolated photons in pp collisions at \( \sqrt {s} = 7\;TeV \)
The integrated and differential cross sections for the production of pairs of isolated photons is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV with the CMS detector at the LHC. A da...
