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


Combination of searches for WW, WZ, and ZZ resonances in pp collisions at s=8 T...

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

The ATLAS experiment at the CERN Large Hadron Collider has performed searches for new, heavy bosons decaying to WW, WZ and ZZ final states in multiple decay channels using 20.3 fb−120.3 fb−1 of pp collision data at View the MathML sources=8 TeV. In the current study, the results of these searches are combined to provide a more stringent test of models predicting heavy resonances with couplings to vector bosons....


Measurement of the tt¯ production cross-section using eμ events with b-tagged j...

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

This paper describes a measurement of the inclusive top quark pair production cross-section (View the MathML sourceσtt¯) with a data sample of View the MathML source3.2fb−1 of proton–proton collisions at a centre-of-mass energy of View the MathML sources=13TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron–muon pair in the final state. Jets con...


Erratum to: Study of the spin and parity of the Higgs boson in diboson decays w...

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

Erratum to: Eur. Phys. J. C (2015) 75:476 DOI 10.1140/epjc/s10052-015-3685-1; The online version of the original article can be found under doi:10.1140/epjc/s10052-015-3685-1


Search for scalar leptoquarks in pp collisions at root s=13TeV with the ATLAS e...

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

An inclusive search for a new-physics signature of lepton-jet resonances has been performed by the ATLAS experiment. Scalar leptoquarks, pair-produced in pp collisions at $\sqrt{s}$ = 13 TeV at the large hadron collider, have been considered. An integrated luminosity of 3.2 fb−1, corresponding to the full 2015 dataset was used. First (second) generation leptoquarks were sought in events with two electrons (muon...


The performance of the jet trigger for the ATLAS detector during 2011 data taking

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

The performance of the jet trigger for the ATLAS detector at the LHC during the 2011 data taking period is described. During 2011 the LHC provided proton–proton collisions with a centre-of-mass energy of 7 TeV and heavy ion collisions with a 2.76 TeV per nucleon–nucleon collision energy. The ATLAS trigger is a three level system designed to reduce the rate of events from the 40 MHz nominal maximum bunch crossin...


Search for new resonances in events with one lepton and missing transverse mome...

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

A search for W′W′ bosons in events with one lepton (electron or muon) and missing transverse momentum is presented. The search uses 3.2 fb−1 of pp collision data collected at View the MathML sources=13 TeV by the ATLAS experiment at the LHC in 2015. The transverse mass distribution is examined and no significant excess of events above the level expected from Standard Model processes is observed. Upper limits on...


The Laser calibration of the ATLAS Tile Calorimeter during the LHC run 1

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

This article describes the Laser calibration system of the ATLAS hadronic Tile Calorimeter that has been used during the run 1 of the LHC . First, the stability of the system associated readout electronics is studied. It is found to be stable with variations smaller than 0.6 %. Then, the method developed to compute the calibration constants, to correct for the variations of the gain of the calorimeter photomult...


Search for resonances in diphoton events at root s=13TeV with the ATLAS detector

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

Searches for new resonances decaying into two photons in the ATLAS experiment at the CERN Large Hadron Collider are described. The analysis is based on proton-proton collision data corresponding to an integrated luminosity of 3.2 fb−1 at √s=13 TeV recorded in 2015. Two searches are performed, one targeted at a spin-2 particle of mass larger than 500 GeV, using Randall-Sundrum graviton states as a benchmark mode...


Transverse momentum, rapidity, and centrality dependence of inclusive charged-p...

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

Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pbp+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of View the MathML sourcesNN=5.02TeV. Charged particles are reconstructed over pseudorapidity |η|<2.3|η|<2.3 and transverse momentum between 0.1 GeV0.1 GeV and 22 GeV22 GeV i...


Identification of high transverse momentum top quarks in pp collisions at root ...

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

This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events c...

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