340 Result(s)
within
C. García
Physics
Classical and Quantum Gravitation, Relativity Theory
Quantum Field Theories, String Theory
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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 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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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 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 AccessJet mass and substructure of inclusive jets in \( \sqrt {s} = 7\;{\text{TeV}} \) pp collisions with the ATLAS experiment
Recent studies have highlighted the potential of jet substructure techniques to identify the hadronic decays of boosted heavy particles. These studies all rely upon the assumption that the internal substructur...
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Open AccessMeasurement of inclusive two-particle angular correlations in pp collisions with the ATLAS detector at the LHC
We present a measurement of two-particle angular correlations in proton- proton collisions at \( \sqrt {s} = 900 \) GeV and 7 TeV...
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Open AccessSearch for charged Higgs bosons decaying via H ± → τν in \( t\overline t \) events using pp collision data at \( \sqrt {s} = 7\;TeV \) with the ATLAS detector
The results of a search for charged Higgs bosons are presented. The analysis is based on 4.6fb−1 of proton-proton collision data at $ \sqrt {s...
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Open AccessMeasurement of the W boson polarization in top quark decays with the ATLAS detector
This paper presents measurements of the polarization of W bosons in top quark decays, derived from \( t\overline t \) events with...
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Open AccessHunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb−1 of \( \sqrt {s} = 7\;TeV \) proton-proton collisions
Results are presented of a search for new particles decaying to large numbers of jets in association with missing transverse momentum, using 4.7 fb−1 of pp collision data at
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Open AccessA search for \( t\overline t \) resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at \( \sqrt {s} = 7 \) TeV with the ATLAS detector
A search for resonant production of high-mass top-quark pairs is performed on 2.05 fb−1 of proton-proton collisions at \( \sqrt {s} = 7 \) ...
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Open AccessSearch for the Standard Model Higgs boson in the H → τ + τ − decay mode in \( \sqrt {s} = 7\,{\mathrm{TeV}} \) pp collisions with ATLAS
A search for the Standard Model Higgs boson decaying into a pair of τ leptons is reported. The analysis is based on a data sample of proton-proton collisions collected by the ATLAS experiment at the LHC and corre...
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Open AccessA search for flavour changing neutral currents in top-quark decays in pp collision data collected with the ATLAS detector at \( \sqrt{s}=7\;TeV \)
A search for flavour changing neutral current (FCNC) processes in top-quark decays by the ATLAS Collaboration is presented. Data collected from pp collisions at the LHC at a centre-of-mass energy of ...
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Open AccessMeasurements of the pseudorapidity dependence of the total transverse energy in proton-proton collisions at \( \sqrt{s}=7 \) TeV with ATLAS
This paper describes measurements of the sum of the transverse energy of particles as a function of particle pseudorapidity, η, in proton-proton collisions at a centre-of-mass energy,
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Open AccessSearch for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
The results of a search for direct pair production of heavy top-quark partners in 4.7 fb−1 of integrated luminosity from pp collisions at $ \s...
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Open AccessSearch for high-mass resonances decaying to dilepton final states in pp collisions at \( \sqrt{s}=7 \) TeV with the ATLAS detector
The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to an electron-positron pair or a muon-antimuon pair. The search is sensitive to heavy neutral Z′ gauge bosons, ...
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Open AccessTime-dependent angular analysis of the decay \( B_s^0\to {J \left/ {{\psi \phi }} \right.} \) and extraction of ΔΓ s and the CP-violating weak phase ϕ s by ATLAS
A measurement of \( B_s^0\to {J \left/ {{\psi \phi }} \right.} \) decay parameters, including the CP -violating weak phase ϕ s ...
