P.D. Nef

article

Search for dark matter in association with a Higgs boson decaying to b-quarks in pp collisions at s=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2017 > 765 > C > 11-31

A search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks is presented, using 3.2 fb⁻¹ of pp collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum bb¯ system with either a pair of small-radius jets, or a single large-radius jet with substructure...

article

Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p+Pb collisions measured by the ATLAS experiment

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 763 > C > 313-336

Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of sNN=5.02TeV. Charged particles are reconstructed over pseudorapidity |η|<2.3 and transverse momentum between 0.1 GeV and 22 GeV in a dataset corresponding to...

article

ATLAS Collaboration

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Nuclear Physics A > 2016 > 956 > C > 922-944

article

Search for new resonances in events with one lepton and missing transverse momentum in pp collisions at s=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 762 > C > 334-352

A search for 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 s=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 W′ boson...

article

Measurement of the W±Z boson pair-production cross section in pp collisions at s=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 762 > C > 1-22

The production of W±Z events in proton–proton collisions at a centre-of-mass energy of 13 TeV is measured with the ATLAS detector at the LHC. The collected data correspond to an integrated luminosity of 3.2 fb−1. The W±Z candidates are reconstructed using leptonic decays of the gauge bosons into electrons or muons. The measured inclusive cross section in the detector fiducial region for leptonic decay...

article

Search for high-mass new phenomena in the dilepton final state using proton–proton collisions at s=13TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 761 > C > 372-392

A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2fb−1 of proton–proton collision data, collected at s=13TeV by the ATLAS experiment at the LHC in 2015. The dilepton invariant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits...

article

Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at s=13TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 761 > C > 136-157

This paper describes a measurement of the inclusive top quark pair production cross-section (σtt¯) with a data sample of 3.2fb−1 of proton–proton collisions at a centre-of-mass energy of s=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 containing b-quarks are tagged using an algorithm based...

article

Search for TeV-scale gravity signatures in high-mass final states with leptons and jets with the ATLAS detector at s=13 TeV

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 760 > C > 520-537

A search for physics beyond the Standard Model, in final states with at least one high transverse momentum charged lepton (electron or muon) and two additional high transverse momentum leptons or jets, is performed using 3.2 fb⁻¹ of proton–proton collision data recorded by the ATLAS detector at the Large Hadron Collider in 2015 at s=13 TeV. The upper end of the distribution of the scalar sum of the...

article

Search for charged Higgs bosons produced in association with a top quark and decaying via H±→τν using pp collision data recorded at s=13 TeV by the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 759 > C > 555-574

Charged Higgs bosons produced in association with a single top quark and decaying via H±→τν are searched for with the ATLAS experiment at the LHC, using proton–proton collision data at s=13 TeV corresponding to an integrated luminosity of 3.2 fb−1. The final state is characterised by the presence of a hadronic τ decay and missing transverse momentum, as well as a hadronically decaying top quark, resulting...

article

Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 759 > C > 601-621

Measurements of the W±→ℓ±ν and Z→ℓ+ℓ− production cross sections (where ℓ±=e±,μ±) in proton–proton collisions at s=13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb⁻¹. The total inclusive W±-boson production cross sections times the single-lepton-flavour branching ratios are σW+tot=11.83±0.02 (stat)±0...

article

Search for resonances in the mass distribution of jet pairs with one or two jets identified as b-jets in proton–proton collisions at s=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, more

Physics Letters B > 2016 > 759 > C > 229-246

Searches for high-mass resonances in the dijet invariant mass spectrum with one or two jets identified as b-jets are performed using an integrated luminosity of 3.2 fb−1 of proton–proton collisions with a centre-of-mass energy of s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider. No evidence of anomalous phenomena is observed in the data, which are used to exclude, at 95% credibility...

article

Charged-particle distributions in s=13 TeV pp interactions measured with the ATLAS detector at the LHC

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 758 > C > 67-88

Charged-particle distributions are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV, using a data sample of nearly 9 million events, corresponding to an integrated luminosity of 170 μb−1, recorded by the ATLAS detector during a special Large Hadron Collider fill. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the dependence...

article

Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at s=8 TeV

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 758 > C > 249-268

A search is performed for the process pp→G⁎→BHb¯/B¯Hb→Hbb¯→bb¯bb¯, predicted in composite Higgs scenarios, where G⁎ is a heavy colour octet vector resonance and BH a vector-like quark of charge −1/3. The data were obtained from pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.5 fb−1, recorded by the ATLAS detector at the LHC. The largest background,...

article

Search for new phenomena in final states with large jet multiplicities and missing transverse momentum with ATLAS using s=13 TeV proton–proton collisions

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 757 > C > 334-355

Results are reported of a search for new phenomena, such as supersymmetric particle production, that could be observed in high-energy proton–proton collisions. Events with large numbers of jets, together with missing transverse momentum from unobserved particles, are selected. The data analysed were recorded by the ATLAS experiment during 2015 using the 13 TeV centre-of-mass proton–proton collisions...

article

Measurement of D⁎±, D± and Ds± meson production cross sections in pp collisions at s=7 TeV with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Nuclear Physics B > 2016 > 907 > C > 717-763

The production of D⁎±, D± and Ds± charmed mesons has been measured with the ATLAS detector in pp collisions at s=7 TeV at the LHC, using data corresponding to an integrated luminosity of 280 nb−1. The charmed mesons have been reconstructed in the range of transverse momentum 3.5<pT(D)<100 GeV and pseudorapidity |η(D)|<2.1. The differential cross sections as a function of transverse momentum...

article

Measurement of the dependence of transverse energy production at large pseudorapidity on the hard-scattering kinematics of proton–proton collisions at s=2.76 TeV with ATLAS

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 756 > C > 10-28

The relationship between jet production in the central region and the underlying-event activity in a pseudorapidity-separated region is studied in 4.0 pb⁻¹ of s=2.76 TeV pp collision data recorded with the ATLAS detector at the LHC. The underlying event is characterised through measurements of the average value of the sum of the transverse energy at large pseudorapidity downstream of one of the protons,...

article

Measurement of the charge asymmetry in highly boosted top-quark pair production in s=8 TeV pp collision data collected by the ATLAS experiment

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 756 > C > 52-71

In the pp→tt¯ process the angular distributions of top and anti-top quarks are expected to present a subtle difference, which could be enhanced by processes not included in the Standard Model. This Letter presents a measurement of the charge asymmetry in events where the top-quark pair is produced with a large invariant mass. The analysis is performed on 20.3 fb⁻¹ of pp collision data at s=8TeV collected...

article

Evidence for single top-quark production in the s-channel in proton–proton collisions at s=8 TeV with the ATLAS detector using the Matrix Element Method

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 756 > C > 228-246

This Letter presents evidence for single top-quark production in the s-channel using proton–proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS detector at the CERN Large Hadron Collider. The analysis is performed on events containing one isolated electron or muon, large missing transverse momentum and exactly two b-tagged jets in the final state. The analysed data set corresponds...

article

Combination of searches for WW, WZ, and ZZ resonances in pp collisions at s=8 TeV with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 755 > C > 285-305

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−1 of pp collision data at s=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. Direct searches...

article

Search for new phenomena in dijet mass and angular distributions from pp collisions at s=13 TeV with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, more

Physics Letters B > 2016 > 754 > C > 302-322

This Letter describes a model-agnostic search for pairs of jets (dijets) produced by resonant and non-resonant phenomena beyond the Standard Model in 3.6 fb−1 of proton–proton collisions with a centre-of-mass energy of s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The distribution of the invariant mass of the two leading jets is examined for local excesses above a data-derived...

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Search results for: P.D. Nef

Search for dark matter in association with a Higgs boson decaying to b-quarks in pp collisions at s=13 TeV with the ATLAS detector

Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p+Pb collisions measured by the ATLAS experiment

ATLAS Collaboration

Search for new resonances in events with one lepton and missing transverse momentum in pp collisions at s=13 TeV with the ATLAS detector

Measurement of the W±Z boson pair-production cross section in pp collisions at s=13 TeV with the ATLAS detector

Search for high-mass new phenomena in the dilepton final state using proton–proton collisions at s=13TeV with the ATLAS detector

Measurement of the tt¯ production cross-section using eμ events with b-tagged jets in pp collisions at s=13TeV with the ATLAS detector

Search for TeV-scale gravity signatures in high-mass final states with leptons and jets with the ATLAS detector at s=13 TeV

Search for charged Higgs bosons produced in association with a top quark and decaying via H±→τν using pp collision data recorded at s=13 TeV by the ATLAS detector

Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector

Search for resonances in the mass distribution of jet pairs with one or two jets identified as b-jets in proton–proton collisions at s=13 TeV with the ATLAS detector

Charged-particle distributions in s=13 TeV pp interactions measured with the ATLAS detector at the LHC

Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at s=8 TeV

Search for new phenomena in final states with large jet multiplicities and missing transverse momentum with ATLAS using s=13 TeV proton–proton collisions

Measurement of D⁎±, D± and Ds± meson production cross sections in pp collisions at s=7 TeV with the ATLAS detector

Measurement of the dependence of transverse energy production at large pseudorapidity on the hard-scattering kinematics of proton–proton collisions at s=2.76 TeV with ATLAS

Measurement of the charge asymmetry in highly boosted top-quark pair production in s=8 TeV pp collision data collected by the ATLAS experiment

Evidence for single top-quark production in the s-channel in proton–proton collisions at s=8 TeV with the ATLAS detector using the Matrix Element Method

Combination of searches for WW, WZ, and ZZ resonances in pp collisions at s=8 TeV with the ATLAS detector

Search for new phenomena in dijet mass and angular distributions from pp collisions at s=13 TeV with the ATLAS detector

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