# Search results for: D. E. Ferreira de Lima

The European Physical Journal C > 2017 > 77 > 3 > 1-28

Journal of High Energy Physics > 2017 > 2017 > 2 > 1-54

*Z*-boson cross sections measured from proton-proton collisions at the LHC centre-of-mass energies of s = 13 $$ \sqrt{s}=13 $$ TeV, 8 TeV, and 7 TeV are presented by the ATLAS Collaboration. Single ratios, at a given s $$ \sqrt{s} $$ for the two processes and at different s $$ \sqrt{s} $$ for each process, as well as double ratios...

Journal of High Energy Physics > 2017 > 2017 > 2 > 1-49

*b*-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb

^{−1}from proton-proton collisions at a centre-of-mass energy of s = 8 $$ \sqrt{s}=8 $$ TeV collected with the ATLAS detector at the Large Hadron...

Journal of High Energy Physics > 2017 > 2017 > 1 > 1-43

*X*(3872) and

*ψ*(2

*S*), in the decay mode

*J/ψπ*

^{+}

*π*

^{−}, measured using 11.4 fb

^{−1}of

*pp*collisions at s = 8 $$ \sqrt{s}=8 $$ TeV by the ATLAS detector at the LHC. The ratio of cross-sections

*X*(3872)

*/ψ*(2

*S*) is also given, separately for prompt and non-prompt components, as well as...

Journal of High Energy Physics > 2017 > 2017 > 1 > 1-53

*ZZ*production cross section in the ℓ

^{−}ℓ

^{+}ℓ

^{′ −}ℓ

^{′ +}and ℓ − ℓ + ν ν ¯ $$ {\ell}^{-}{\ell}^{+}\nu \overline{\nu} $$ channels (ℓ =

*e, μ*) in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV 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...

Journal of High Energy Physics > 2016 > 2016 > 11 > 1-52

*.*3 pb

^{−1}, collected with the ATLAS detector at the LHC. The contribution of hard double-parton scattering to the production of four-jet events...

Journal of High Energy Physics > 2016 > 2016 > 11 > 1-37

^{−1}of LHC proton-proton collision data at s = 8 $$ \sqrt{s}=8 $$ TeV. The signal is searched for as a resonance in the invariant mass distribution of a pair of jets containing

*b*-hadrons in vector-boson-fusion candidate...

The European Physical Journal C > 2016 > 76 > 10 > 1-39

Journal of High Energy Physics > 2016 > 2016 > 9 > 1-44

^{−1}of proton-proton collision data at s = 8 $$ \sqrt{s}=8 $$ TeV. A likelihood-driven scan of a five-dimensional effective model focusing on the gaugino-higgsino and Higgs...

Journal of High Energy Physics > 2016 > 2016 > 9 > 1-46

*WW*,

*WZ*, and

*ZZ*bosons are presented, using a data sample corresponding to 3.2 fb

^{−1}of

*pp*collisions at s = 13 $$ \sqrt{s}=13 $$ TeV collected with the ATLAS detector at the CERN Large Hadron Collider. Analyses selecting

*ννqq*,

*ℓνqq*,

*ℓℓqq*and

*qqqq*final states are combined, searching for an arrow-width resonance with mass between 500...

Journal of High Energy Physics > 2016 > 2016 > 9 > 1-62

^{−1}of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton

*eμ*decay channel with two identified

*b*-jets. The numbers of additional jets for various...

Journal of High Energy Physics > 2016 > 2016 > 8 > 1-101

*Z*-boson mass peak probe the underlying QCD dynamics of

*Z*-boson production. This paper presents a measurement of the complete set of angular coefficients

*A*

_{0−7}describing these distributions in the

*Z*-boson Collins-Soper frame. The data analysed correspond to 20.3 fb

^{−1}of

*pp*collisions at s = 8 $$ \sqrt{s}=8...

Journal of High Energy Physics > 2016 > 2016 > 8 > 1-45

*B*

_{s}

^{0}decay parameters in the

*B*

_{s}

^{0}→

*J*/

*ψϕ*channel using an integrated luminosity of 14.3 fb

^{−1}collected by the ATLAS detector from 8 TeV

*pp*collisions at the LHC is presented. The measured parameters include the

*CP*-violating phase

*ϕ*

_{s}, the decay width Γ

_{s}and the width difference between the mass eigenstates ΔΓ

_{s}. The values measured for the physical parameters are statistically...

Journal of High Energy Physics > 2016 > 2016 > 8 > 1-63

*H*→

*W W*

^{∗}→

*eνμν*channel, using 20

*.*3 fb

^{−1}of proton-proton collision data. The data were produced at a centre-of-mass energy of s = 8 $$ \sqrt{s}=8 $$ TeV at the CERN Large Hadron Collider and recorded by the ATLAS detector in 2012. Cross sections are measured...

Journal of High Energy Physics > 2016 > 2016 > 8 > 1-113

*W*or a

*Z*boson or a pair of top quarks, and of the six decay modes

*H*→

*ZZ, W W*...

Journal of High Energy Physics > 2016 > 2016 > 8 > 1-42

*η*

^{γ}|

*<*1

*.*37 and 1

*.*56 ≤ |

*η*

^{γ}|

*<*2

*.*37 in the transverse energy range 25 <

*E*

_{T}

^{γ}< 1500 GeV. The results are based on an integrated...

Journal of High Energy Physics > 2016 > 2016 > 8 > 1-61

*Z/γ*

^{∗}→

*ℓ*

^{+}

*ℓ*

^{−}and photon-induced

*γγ*→

*ℓ*

^{+}

*ℓ*

^{−}processes where

*ℓ*is an electron or muon. The measurement is performed for invariant masses of the lepton pairs,

*m*

_{ℓℓ}, between 116 GeV and 1500 GeV using a sample of 20

*.*3 fb

^{−1}of

*pp*collisions data at centre-of-mass energy of s = 8 $$ \sqrt{s}=8 $$...

Journal of High Energy Physics > 2016 > 2016 > 6 > 1-39

_{ d }/Γ

_{ d }of the B 0 ‐ B ¯ 0 $$ {B}^0\hbox{-} {\overline{B}}^0 $$ system using the data collected by the ATLAS experiment at the LHC in

*pp*collisions at s = 7 $$ \sqrt{s}=7 $$ TeV and s = 8 $$ \sqrt{s}=8 $$ TeV and corresponding to an integrated...

Journal of High Energy Physics > 2016 > 2016 > 6 > 1-41

^{−1}. The observed data are in agreement with the Standard Model expectations...

Journal of High Energy Physics > 2016 > 2016 > 2 > 1-51

^{−1}of data collected by the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a centre-of-mass energy of 8 TeV. Events are required to contain at least two lepton-jets. This...