CERN Accelerating science

CERN Document Server Pronađeno je 293 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 0.63 sekundi 
1.
First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV / AMS Collaboration
A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8×106 positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to ∼250  GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. [...]
2013 - 10 p. - Published in : Phys. Rev. Lett. 110 (2013) 141102 External links: Interactions.org article; Symmetry Magazine article; Press Release
2.
Search for quantum black hole production in lepton+jet final states using proton--proton collisions at s = 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for quantum black holes in electron+jet and muon+jet invariant mass spectra is performed with 140 fb1 of data collected by the ATLAS detector in proton--proton collisions at s = 13 TeV at the Large Hadron Collider. The observed invariant mass spectrum of lepton+jet pairs is consistent with Standard Model expectations. [...]
arXiv:2307.14967; CERN-EP-2023-117.- Geneva : CERN, 2024-02-01 - 28 p. - Published in : 10.1103/PhysRevD.109.032010 Fulltext: EXOT-2018-14-002 - PDF; 2307.14967 - PDF; External link: Previous draft version
3.
Cd implantation in α-MoO3: An atomic scale study / Gerami, Adeleh Mokhles (IPM, Tehran ; CERN) ; Heiniger-Schell, Juliana (CERN ; Duisburg-Essen U.) ; da Silva, E Lora (Porto U.) ; Costa, Messias S (Para U.) ; Costa, Cleidilane S (Para U.) ; Monteiro, João G (IST/ITN, Lisbon) ; Pires, José J (Lisbon, CFTP) ; Pereira, Daniela R (Lisbon, ISEL) ; Díaz-Guerra, Carlos (Madrid U.) ; Carbonari, Artur W (IPEN, Sao Paulo) et al.
Lamellar α-MoO3 crystals were implanted with low fluence of radioactive Cd111m ions at ISOLDE-CERN. Subsequently, we have probed the interaction of the Cd impurity in the lattice with native point defects, such as oxygen vacancies, as a function of annealing temperature using the time differential perturbed angular correlations nanoscopic technique. [...]
2023 - 15 p. - Published in : Phys. Rev. Mater. 7 (2023) 033603 Fulltext: PDF;
4.
Measurement of the inclusive tˉt production cross section in the lepton+jets channel in pp collisions at 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 fb1 of 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
5.
Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at s=13 TeV with the ATLAS detector / ATLAS Collaboration
A measurement of the top-quark mass (mt) in the tˉt lepton+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 mμ of the lepton, (with =e,μ), from the W-boson decay and the muon, μ, originating from the b-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract mt. [...]
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
6.
Measurement of cross-sections for production of a Z boson in association with a flavor-inclusive or doubly b-tagged large-radius jet in proton-proton collisions at s=13 TeV with the ATLAS experiment / ATLAS Collaboration
We present measurements of cross-sections for production of a leptonically decaying Z boson in association with a large-radius jet in 13 TeV proton-proton collisions at the LHC, using 36 fb1 of data from the ATLAS detector. Integrated and differential cross-sections are measured at particle-level in both a flavor-inclusive and a doubly b-tagged fiducial phase-space. [...]
arXiv:2204.12355; CERN-EP-2021-140.- 2023-07-31 - 32 p. - Published in : Phys. Rev. D 108 (2023) 012022 Fulltext: 2204.12355 - PDF; Publication - PDF; External link: Previous draft version
7.
Measurements of jet observables sensitive to b-quark fragmentation in tˉt events at the LHC with the ATLAS detector / ATLAS Collaboration
Several observables sensitive to the fragmentation of b-quarks into b-hadrons are measured using 36 fb1 of s=13 TeV proton--proton collision data collected with the ATLAS detector at the LHC. Jets containing b-hadrons are obtained from a sample of dileptonic tˉt events, and the associated set of charged-particle tracks is separated into those from the primary pp interaction vertex and those from the displaced b-decay secondary vertex. [...]
arXiv:2202.13901; CERN-EP-2021-116.- Geneva : CERN, 2022-08-01 - 49 p. - Published in : Phys. Rev. D 106 (2022) 032008 Fulltext: PDF; Fulltext from publisher: PDF; External link: Previous draft version
8.
Two-particle Bose–Einstein correlations in pp collisions at 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 μb1 and 8.4 nb1 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
9.
Constraints on Higgs boson properties using WW(eνμν)jj production in 36.1fb1 of s=13 TeV pp collisions with the ATLAS detector / ATLAS Collaboration
This article presents the results of two studies of Higgs boson properties using the WW(eνμν)jj final state, based on a dataset corresponding to 36.1 fb1 of s=13 TeV proton-proton collisions recorded by the ATLAS experiment at the Large Hadron Collider. The first study targets Higgs boson production via gluon-gluon fusion and constrains the CP properties of the effective Higgs-gluon interaction. [...]
arXiv:2109.13808; CERN-EP-2021-096.- Geneva : CERN, 2022-07-18 - 47 p. - Published in : Eur. Phys. J. C 82 (2022) 622 Fulltext: 2109.13808 - PDF; document - PDF; External link: Previous draft version
10.
The ATLAS Inner Detector Trigger performance in pp collisions at 13 TeV during LHC Run 2 / ATLAS Collaboration
The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016-18 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded 35.6 fb1, 46.9 fb1, and 60.6 fb1 respectively of proton-proton collision data at a centre-of-mass energy of 13 TeV. [...]
arXiv:2107.02485; CERN-EP-2021-076.- Geneva : CERN, 2022-03-08 - 81 p. - Published in : Eur. Phys. J. C 82 (2022) 206 Fulltext: 2107.02485 - PDF; document - PDF; External link: Previous draft version

CERN Document Server : Pronađeno je 293 zapisa   1 - 10slijedećikraj  idi na zapis:
Također vidi: slična imena autora
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
12 Pereira, Rui
1 Pereira, Rui Sá
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