Project/scholarship details
- Project/scholarship ID
143069
- Reference
CERN/FIS-NUC/0005/2015
- FundRef URI
- Funder
FCT - Fundação para a Ciência e a Tecnologia, I.P.
- Funder's country
Portugal
- Funding program
3599-PPCDT
- Funding amount
400,000.00 €
- Start date
2015-03-01
- End date
2017-02-28
Documents
Measurement of the tt¯ production cross-section as a function of jet multiplici...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationThe tt¯ production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton--proton collisions at a centre-of-mass energy of 7 TeV in the single-lepton channel. The data were collected with the ATLAS detector at the CERN Large Hadron Collider and comprise the full 2011 data sample corresponding to an integrated luminosity of 4.6 fb−1. Differential cross-sections are presen...
Study of (W/Z)H production and Higgs boson couplings using H -> WW* decays with...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationA search for Higgs boson production in association with a W or Z boson, in the H→ W W ∗ decay channel, is performed with a data sample collected with the ATLAS detector at the LHC in proton-proton collisions at centre-of-mass energies s√=7 TeV and 8 TeV, corresponding to integrated luminosities of 4.5 fb−1 and 20.3 fb−1, respectively. The WH production mode is studied in two-lepton and three-lepton final states...
Searches for Higgs boson pair production in the hh→bbττ,γγWW∗,γγbb,bbbb channel...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationSearches for both resonant and non-resonant Higgs boson pair production are performed in the hh→bbττ,γγWW∗ final states using 20.3 fb−1 of pp collision data at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. No evidence of their production is observed and 95% confidence level upper limits on the production cross sections are set. These results are then combined wi...
Search for invisible particles produced in association with single-top-quarks i...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationA search for the production of single-top-quarks in association with missing energy is performed in proton--proton collisions at a centre-of-mass energy of s√ = 8 TeV with the ATLAS experiment at the Large Hadron Collider using data collected in 2012, corresponding to an integrated luminosity of 20.3 fb−1. In this search, the W boson from the top quark is required to decay into an electron or a muon and a neutr...
Search for lepton-flavour-violating H → μτ decays of the Higgs boson with the A...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationA direct search for lepton-flavour-violating H → μτ decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H → μτhad channel, where τhad is a hadronically decaying τ -lepton. The search is based on the data sample of proton-proton collisions collected by the ATLAS experiment corresponding to an integrated luminosity of 20.3 fb−1 at a centr...
Search for new phenomena in final states with an energetic jet and large missin...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationResults of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of s√=8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT>120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between EmissT>150 G...
Search for heavy lepton resonances decaying to a Z boson and a lepton in pp col...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationA search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at s√=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No si...
Search for photonic signatures of gauge-mediated supersymmetry in 8 TeV pp coll...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationA search is presented for photonic signatures motivated by generalised models of gauge-mediated supersymmetry breaking. This search makes use of 20.3 fb−1 of proton-proton collision data at s√=8 TeV recorded by the ATLAS detector at the LHC, and explores models dominated by both strong and electroweak production of supersymmetric partner states. Four experimental signatures incorporating an isolated photon and ...
Measurement of charged-particle spectra in Pb+Pb collisions at √sNN = 2.76TeV w...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationCharged-particle spectra obtained in 0.15nb−1 of Pb+Pb interactions at sNN−−−√=2.76TeV and 4.2pb−1 of pp interactions at s√=2.76TeV with the ATLAS detector at the LHC are presented in a wide transverse momentum (0.5<pT<150GeV) and pseudorapidity (|η|<2) range. For Pb+Pb collisions, the spectra are presented as a function of collision centrality, which is determined by the response of the forward calorimeter loc...
Measurement of the top pair production cross-section in 8 TeV proton-proton col...
Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS CollaborationA measurement is presented of the tt¯ inclusive production cross section in pp collisions at a center-of-mass energy of s√=8 TeV using data collected by the ATLAS detector at the CERN Large Hadron Collider. The measurement was performed in the lepton+jets final state using a data set corresponding to an integrated luminosity of 20.3 fb−1. The cross section was obtained using a likelihood discriminant fit and ...
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