287 Result(s)
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Physics
Quantum Field Theories, String Theory
Quantum Physics
**n-long Ma
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Open AccessPerformance of the ATLAS detector using first collision data
More than half a million minimum-bias events of LHC collision data were collected by the ATLAS experiment in December 2009 at centre-of-mass energies of 0.9 TeV and 2.36 TeV. This paper reports on studies of t...
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Open AccessMeasurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at \( \sqrt {s} = 7\;{\text{TeV}} \) with the ATLAS detector
First measurements of the W → ℓν and Z/γ * → ℓℓ (ℓ = e, μ) production cross sections in proton-proton collisions at
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Open AccessSearch for new physics with same-sign isolated dilepton events with jets and missing transverse energy at the LHC
The results of searches for new physics in events with two same-sign isolated leptons, hadronic jets, and missing transverse energy in the final state are presented. The searches use an integrated luminosity o...
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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 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 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 dijet production with a veto on additional central jet activity in pp collisions at \( \sqrt {s} = 7 \) TeV using the ATLAS detector
A measurement of jet activity in the rapidity interval bounded by a dijet system is presented. Events are vetoed if a jet with transverse momentum greater than 20 GeV is found between the two boundary jets. Th...
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Open AccessMeasurement of Wγ and Zγ production in proton-proton collisions at \( \sqrt {s} = 7 \) TeV with the ATLAS detector
We present studies of W and Z bosons with associated high energy photons produced in pp collisions at \( \sqrt {s} = 7 \) ...
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Open AccessInclusive search for same-sign dilepton signatures in pp collisions at \( \sqrt {s} = 7 \) TeV with the ATLAS detector
An inclusive search is presented for new physics in events with two isolated leptons (e or μ) having the same electric charge. The data are selected from events collected from pp collisions at
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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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Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using \(\sqrt {s}\) = 7 TeV pp collisions with the ATLAS detector
Results are presented of a search for any particle(s) decaying to six or more jets in association with missing transverse momentum. The search is performed using 1.34fb−1 of
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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...
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Open AccessJ/ψ and ψ(2S) production in pp collisions at \( \sqrt {s} = 7{\text{Tev}} \)
A measurement of the J/ψ and ψ(2S) production cross sections in pp collisions at \( \sqrt {s} = 7{\text{TeV}} \) with the CMS exp...
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Open AccessSearch for the standard model Higgs boson in the H → ZZ → 2ℓ2ν channel in pp collisions at \( \sqrt {\text{s}} = {7}\;{\text{TeV}} \)
A search for the standard model Higgs boson in the H → ZZ → 2ℓ2ν decay channel, where ℓ = e or μ, in pp collisions at a center-of-mass energy of 7 TeV is presented. The data were collected at the LHC, with the CM...
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Open AccessSearch for the standard model Higgs boson in the H → ZZ → ℓ+ℓ−τ+τ− decay channel in pp collisions at \( \sqrt {s} = {7}\;{\text{TeV}} \)
A search is reported for the standard model Higgs boson in the H → ZZ → ℓ+ℓ−τ +τ − decay mode, where ℓ = μ or e, in proton-proton collisions at ...
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Open AccessSearch for \( {\text{B}}_{\text{s}}^0 \) → μ + μ − and B0 → μ + μ − decays
A search for the rare decays \( {\text{B}}_{\text{s}}^0 \) → μ + μ − and B0 → μ ...
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Open AccessSearch for same-sign top-quark production and fourth-generation down-type quarks in pp collisions at \( \sqrt {s} = {7}\;{\text{TeV}} \) with the ATLAS detector
A search is presented for same-sign top-quark production and down-type heavy quarks of charge −1/3 in events with two isolated leptons (e or μ) that have the same electric charge, at least two jets and large miss...
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Open AccessMeasurement of the cross section for top-quark pair production in pp collisions at \(\sqrt {s} = {7}\,{\text{TeV}}\) with the ATLAS detector using final states with two high-p T leptons
A measurement is reported of the production cross section of top-quark pairs (t \(\overline t\) ) in proton-proton...
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Open AccessSearch for heavy bottom-like quarks in 4.9 fb−1 of pp collisions at \( \sqrt {s} = 7 \) TeV
Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at \( \sqrt {s} = 7 \) TeV, unde...
