Project/scholarship details


  • 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


Search for dark matter at s√=13 TeV in final states containing an energetic pho...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

Results of a search for physics beyond the Standard Model in events containing an energetic photon and large missing transverse momentum with the ATLAS detector at the Large Hadron Collider are reported. As the number of events observed in data, corresponding to an integrated luminosity of 36.1 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV, is in agreement with the Standard Model expecta...


Search for direct top squark pair production in final states with two leptons i...

Onofre, A.; Castro, Nuno Filipe; ATLAS Collaboration

The results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1 fb(-1) of integrated luminosity from proton-proton collisions at root s = 13 TeV collected by the ATLAS detector at the Large Hadron Collider. To cover a range of mass differences between the top squark (t) over tilde and lighter supersymmetric particles, fou...


Measurement of the inclusive jet cross-sections in proton-proton collisions at ...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

Inclusive jet production cross-sections are measured in proton-proton collisions at a centre-of-mass energy of s√=8 TeV recorded by the ATLAS experiment at the Large Hadron Collider at CERN. The total integrated luminosity of the analysed data set amounts to 20.2 fb−1. Double-differential cross-sections are measured for jets defined by the anti-kt jet clustering algorithm with radius parameters of R = 0.4 and R...


Measurement of the ZZ production cross section in proton-proton collisions at √...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

A measurement of the ZZ production cross section in the ℓ−ℓ+ℓ′ −ℓ′ + and ℓ−ℓ+ν¯ν channels (ℓ = e, μ) in proton-proton collisions at √s=8TeV at the Large Hadron Collider at CERN, using data corresponding to an integrated luminosity of 20.3 fb−1 collected by the ATLAS experiment in 2012 is presented. The fiducial cross sections for ZZ → ℓ−ℓ+ℓ′ −ℓ′ + and ZZ→ℓ−ℓ+ν¯ν are measured in selected phase-space regions. The...


Search for a scalar partner of the top quark in the jets plus missing transvers...

Onofre, A.; Castro, Nuno Filipe; ATLAS Collaboration

A search for pair production of a scalar partner of the top quark in events with four or more jets plus missing transverse momentum is presented. An analysis of 36.1 fb(-1) of root s = 13 TeV proton-proton collisions collected using the ATLAS detector at the LHC yields no significant excess over the expected Standard Model background. To interpret the results a simplified supersymmetric model is used where the ...


Measurement of the tt¯Z and tt¯W production cross sections in multilepton final...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

A measurement of the tˉtZ and tˉtW production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton–proton collisions at √s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb−1. The inclusive cross sections are extra...


Jet reconstruction and performance using particle flow with the ATLAS Detector

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

This paper describes the implementation and performance of a particle flow algorithm applied to 20.2 fb−1 of ATLAS data from 8 TeV proton–proton collisions in Run 1 of the LHC. The algorithm removes calorimeter energy deposits due to charged hadrons from consideration during jet reconstruction, instead using measurements of their momenta from the inner tracker. This improves the accuracy of the charged-hadron m...


Measurement of the W boson polarisation in tt¯ events from pp collisions at s√ ...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

This paper presents a measurement of the polarisation of W bosons from tt¯ decays, reconstructed in events with one high-p T lepton and at least four jets. Data from pp collisions at the LHC were collected at s√ = 8 TeV and correspond to an integrated luminosity of 20.2 fb−1. The angle θ∗ between the b-quark from the top quark decay and a direct W boson decay product in the W boson rest frame is sensitive to th...


Measurement of WW/WZ→ℓνqq′ production with the hadronically decaying boson reco...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

This paper presents a study of the production of WW or WZ boson pairs, with one W boson decaying to eν or μν and one W or Z boson decaying hadronically. The analysis uses 20.2 fb −1 of s√=8 TeVpp collision data, collected by the ATLAS detector at the Large Hadron Collider. Cross-sections for WW / WZ production are measured in high-pT fiducial regions defined close to the experimental event selection. The cross-...


Correction to: Identification and rejection of pile-up jets at high pseudorapid...

Onofre, A.; Castro, Nuno Filipe Silva Fernandes; ATLAS Collaboration

Correction to: Eur. Phys. J. C DOI 10.1140/epjc/s10052-017-5081-5. Unfortunately, in the original version of this article the copyright holder was wrong in the HTML. The original article has been corrected.

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