O’Shea, V. - Resultados da pesquisa

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Evidence for the charge asymmetry in $pp \rightarrow t\bar{t}$ production at $\sqrt{s}= 13$ TeV with the ATLAS detector / ATLAS Collaboration
Inclusive and differential measurements of the top-antitop ($t\bar{t}$) charge asymmetry $A_\text{C}^{t\bar{t}}$ and the leptonic asymmetry $A_\text{C}^{\ell\bar{\ell}}$ are presented in proton-proton collisions at $\sqrt{s} = 13$ TeV recorded by the ATLAS experiment at the CERN Large Hadron Collider. The measurement uses the complete Run 2 dataset, corresponding to an integrated luminosity of 139 fb$^{-1}$, combines data in the single-lepton and dilepton channels, and employs reconstruction techniques adapted to both the resolved and boosted topologies. [...]
arXiv:2208.12095; CERN-EP-2022-166.- Geneva : CERN, 2023-08-16 - 68 p. - Published in : JHEP 2308 (2023) 077 Fulltext: document - PDF; 2208.12095 - PDF; External link: Previous draft version

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Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at $\sqrt{s}= 7$ and 8 TeV / ATLAS Collaboration
A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections are obtained using top-quark pair decays with an opposite-charge electron-muon pair in the final state and with data corresponding to an integrated luminosity of about 5 fb$^{-1}$ at $\sqrt{s}=7$ TeV and about 20 fb$^{-1}$ at $\sqrt{s}=8$ TeV for each experiment. [...]
arXiv:2205.13830; CERN-EP-2021-222; CMS-TOP-18-014; CERN-LPCC-2022-03.- 2023-07-27 - 59 p. - Published in : JHEP 2307 (2023) 213 Fulltext: PDF; Fulltext from Publisher: PDF; External link: Previous draft version

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Development of cryogenic tracking detectors for very high luminosity experiments / Härkönen, J (Helsinki Inst. of Phys.) ; Anbinderis, P (Vilnius U.) ; Anbinderis, T (Vilnius U.) ; Bates, R (Glasgow U.) ; de Boer, W (Karlsruhe U., EKP) ; Borchi, E (Florence U., Dip. di Energetica) ; Bruzzi, M (Florence U., Dip. di Energetica) ; Buttar, C (Glasgow U.) ; Chen, W (Brookhaven) ; Cindro, V (Stefan Inst., Ljubljana) et al.
Experimental results and simulations of Charge Collection Efficiency (CCE) of Current Injected Detectors (CIDs) are focused. CID is a concept where the current is limited by the space charge. [...]
2009 - Published in : Nucl. Instrum. Methods Phys. Res., A 607 (2009) 41-44

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Development of a high-speed single-photon pixellated detector for visible wavelengths / Mac Raighne, Aaron (Glasgow U.) ; Teixeira, Antonio (CERN) ; Mathot, Serge (CERN) ; McPhate, Jason (UC, Berkeley) ; Vallerga, John (UC, Berkeley) ; Jarron, Pierre (CERN) ; Brownlee, Colin (The Marine Biological Association of the United Kingdom, Plymouth, UK) ; O’Shea, Val (Glasgow U.)
We present the development of a high-speed, single-photon counting, Hybrid Photo Detector (HPD). The HPD consists of a vacuum tube, containing the detector assembly, sealed with a transparent optical input window [...]
2009 - Published in : Nucl. Instrum. Methods Phys. Res., A 607 (2009) 166-168

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The Medipix2-based network for measurement of spectral characteristics and composition of radiation in ATLAS detector / Vykydala, Z (Prague, Tech. U.) ; Bouchami, J (Montreal U.) ; Campbell, M (CERN) ; Dolezal, Z (Charles U.) ; Fiederle, M (Freiburg U.) ; Greiffenberg, D (Freiburg U.) ; Gutierrez, A (Montreal U.) ; Heijne, E (CERN) ; Holy, T (Prague, Tech. U.) ; Idarraga, J (Montreal U.) et al.
The ATLAS detector is now installed at the CERN LHC and a precise evaluation of the radiation environment within and around the detector is required to understand the performance of the various detector systems, and to predict their useful lifetime. Furthermore, validation of earlier Monte Carlo predictions about the radiation field in ATLAS is necessary. [...]
2009 - Published in : Nucl. Instrum. Methods Phys. Res., A 607 (2009) 35-37

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Development of cryogenic Si detectors by CERN RD39 Collaboration for ultra radiation hardness in SLHC environment / Li, Z ; Abreu, M ; Anbinderis, P ; Anbinderis, T ; D’Ambrosio, N ; de Boer, Wim ; Borchi, E ; Borer, K ; Bruzzi, M ; Buontempo, S et al.
There are two key approaches in our CERN RD 39 Collaboration efforts to obtain ultra-radiation-hard Si detectors: (1) use of the charge/current injection to manipulate the detector internal electric field in such a way that it can be depleted at a modest bias voltage at cryogenic temperature range (150 K), and (2) freezing out of the trapping centers that affects the CCE at cryogenic temperatures lower than that of the liquid nitrogen (LN2) temperature. In our first approach, we have developed the advanced radiation hard detectors using charge or current injection, the current injected diodes (CID). [...]
2007 - Published in : Nucl. Instrum. Methods Phys. Res., A 572 (2007) 305-310
In : 10th Pisa Meeting on Advanced Detectors : Frontier Detectors For Frontier Physics, La Biodola, Italy, 21 - 27 May 2006, pp.305-310

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Veja também: nomes de autores similares
5	O’Shea, V
1	O’Shea, Val

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