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CERN Document Server Sök i 203 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 1.22 sekunder. 
1.
Measurement of the inclusive $t\bar{t}$ production cross section in the lepton+jets channel in $pp$ collisions at $\sqrt{s}$= 7 TeV with the ATLAS detector using support vector machines / ATLAS Collaboration
A measurement of the top quark pair-production cross section in the lepton+jets decay channel is presented. It is based on 4.6 fb$^{-1}$ of $\sqrt{s} = 7$ TeV $pp$ collision data collected during 2011 by the ATLAS experiment at the CERN Large Hadron Collider. [...]
arXiv:2212.00571; CERN-EP-2022-191.- Geneva : CERN, 2023-08-01 - 34 p. - Published in : Phys. Rev. D 108 (2023) 032014 Fulltext: 2212.00571 - PDF; Publication - PDF; External link: Previous draft version
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2.
Measurement of the top-quark mass using a leptonic invariant mass in $pp$ collisions at $\sqrt{s}=13~\textrm{TeV}$ with the ATLAS detector / ATLAS Collaboration
A measurement of the top-quark mass ($m_t$) in the $t\bar{t}\rightarrow~\textrm{lepton}+\textrm{jets}$ channel is presented, with an experimental technique which exploits semileptonic decays of $b$-hadrons produced in the top-quark decay chain. The distribution of the invariant mass $m_{\ell\mu}$ of the lepton, $\ell$ (with $\ell=e,\mu$), from the $W$-boson decay and the muon, $\mu$, originating from the $b$-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract $m_t$. [...]
arXiv:2209.00583; CERN-EP-2020-018.- Geneva : CERN, 2023-06-05 - 54 p. - Published in : JHEP 2306 (2023) 019 Fulltext: 2209.00583 - PDF; document - PDF; External link: Previous draft version
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3.
Two-particle Bose–Einstein correlations in ${ pp }$ collisions at $\mathbf {\sqrt{s} = 13}$ TeV measured with the ATLAS detector at the LHC / ATLAS Collaboration
This paper presents studies of Bose-Einstein correlations (BEC) in proton-proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were collected in a special low-luminosity configuration with a minimum-bias trigger and a high-multiplicity track trigger, accumulating integrated luminosities of 151 $\mu$b$^{-1}$ and 8.4 nb$^{-1}$ respectively. [...]
arXiv:2202.02218; CERN-EP-2021-172.- Geneva : CERN, 2022-07-11 - 38 p. - Published in : Eur. Phys. J. C 82 (2022) 608 Fulltext: 2202.02218 - PDF; document - PDF; External link: Previous draft version
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4.
Search for new phenomena with top quark pairs in final states with one lepton, jets, and missing transverse momentum in $pp$ collisions at $\sqrt{s}$= 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse momentum is performed. Signal regions are employed to search for two-, three-, and four-body decays of the directly pair-produced supersymmetric partner of the top quark (stop). [...]
arXiv:2012.03799; CERN-EP-2020-177.- Geneva : CERN, 2021-04-19 - 66 p. - Published in : JHEP 2104 (2021) 174 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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5.
Search for new phenomena in final states with large jet multiplicities and missing transverse momentum using $\sqrt{s} = 13~\mathrm{TeV}$ proton-proton collisions recorded by ATLAS at Run-2 of the LHC / ATLAS Collaboration
Results of a search for new particles decaying into eight or more jets and moderate missing transverse momentum are presented. The analysis uses 139 fb$^{-1}$ of proton$-$proton collision data at $\sqrt{s} = 13$ TeV collected by the ATLAS experiment at the Large Hadron Collider between 2015 and 2018. [...]
arXiv:2008.06032; CERN-EP-2020-123.- Geneva : CERN, 2020-10-12 - 49 p. - Published in : JHEP 2010 (2020) 062 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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6.
Reconstruction and identification of boosted di-$\tau$ systems in a search for Higgs boson pairs using 13 TeV proton$-$proton collision data in ATLAS / ATLAS Collaboration
In this paper, a new technique for reconstructing and identifying hadronically decaying $\tau^+\tau^-$ pairs with a large Lorentz boost, referred to as the di-$\tau$ tagger, is developed and used for the first time in the ATLAS experiment at the Large Hadron Collider. A benchmark di-$\tau$ tagging selection is employed in the search for resonant Higgs boson pair production, where one Higgs boson decays into a boosted $b\bar{b}$ pair and the other into a boosted $\tau^+\tau^-$ pair, with two hadronically decaying $\tau$-leptons in the final state. [...]
arXiv:2007.14811; CERN-EP-2020-118.- Geneva : CERN, 2020 - 47 p. - Published in : JHEP 2011 (2020) 163 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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7.
Measurement of single top-quark production in association with a W boson in the single-lepton channel at $\sqrt{s} = 8\,\text {TeV}$ with the ATLAS detector / ATLAS Collaboration
The production cross-section of a top quark in association with a $W$ boson is measured using proton-proton collisions at $\sqrt{s} = 8$ TeV. The dataset corresponds to an integrated luminosity of 20.2 fb$^{-1}$, and was collected in 2012 by the ATLAS detector at the Large Hadron Collider at CERN. [...]
arXiv:2007.01554; CERN-EP-2019-221.- Geneva : CERN, 2021-08-10 - 42 p. - Published in : Eur. Phys. J. C 81 (2021) 720 Fulltext: 2007.01554 - PDF; document - PDF; External link: Previous draft version
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8.
Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector / ATLAS Collaboration
A search for new physics with non-resonant signals in dielectron and dimuon final states in the mass range above 2 TeV is presented. This is the first search for non-resonant signals in dilepton final states at the LHC to use a background estimate from the data. [...]
arXiv:2006.12946; CERN-EP-2020-066.- Geneva : CERN, 2020-11-04 - 37 p. Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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9.
Measurements of top-quark pair single- and double-differential cross-sections in the all-hadronic channel in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector / ATLAS Collaboration
Differential cross-sections are measured for top-quark pair production in the all-hadronic decay mode, using proton$-$proton collision events collected by the ATLAS experiment in which all six decay jets are separately resolved. Absolute and normalised single- and double-differential cross-sections are measured at particle and parton level as a function of various kinematic variables. [...]
arXiv:2006.09274; CERN-EP-2020-063.- Geneva : CERN, 2021-01-08 - 79 p. - Published in : JHEP 2101 (2021) 033 Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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10.
Performance of the missing transverse momentum triggers for the ATLAS detector during Run-2 data taking / ATLAS Collaboration
The factor of four increase in the LHC luminosity, from $0.5\times 10^{34}\,\textrm{cm}^{-2}\textrm{s}^{-1}$ to $2.0\times 10^{34}\textrm{cm}^{-2}\textrm{s}^{-1}$, and the corresponding increase in pile-up collisions during the 2015-2018 data-taking period, presented a challenge for ATLAS to trigger on missing transverse momentum. The output data rate at fixed threshold typically increases exponentially with the number of pile-up collisions, so the legacy algorithms from previous LHC data-taking periods had to be tuned and new approaches developed to maintain the high trigger efficiency achieved in earlier operations. [...]
arXiv:2005.09554; CERN-EP-2020-050.- Geneva : CERN, 2020-08-19 - 53 p. Article from SCOAP3: PDF; Fulltext: PDF; External link: Previous draft version
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CERN Document Server : Sök i 203 journaler efter:   1 - 10nästaslut  gå till journal:
Se också: liknande författarnamn
42 Pereira, R
1 Pereira, R Araujo
4 Pereira, R B
1 Pereira, R C
5 Pereira, R G
4 Pereira, R M
1 Pereira, R N
2 Pereira, R.
6 Pereira, R.Araujo
1 Pereira, Rafael Silva
3 Pereira, Rajesh
2 Pereira, Raul
1 Pereira, Renan Câmara
1 Pereira, Ricardo Carvalho
1 Pereira, Ricardo Scachetti
11 Pereira, Roberto
16 Pereira, Rodrigo
3 Pereira, Rodrigo M
1 Pereira, Rui Sá
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