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https://hdl.handle.net/10316/106928
Título: | Measurement of W± -boson and Z-boson production cross-sections in pp collisions at √s=2.76 TeV with the ATLAS detector | Autor: | Fiolhais, M. C. N. Veloso, F. Wolters, H. ATLAS Collaboration |
Data: | 2019 | Editora: | Springer Nature | Título da revista, periódico, livro ou evento: | European Physical Journal C | Volume: | 79 | Número: | 11 | Resumo: | The production cross-sections for W± and Z bosons are measured using ATLAS data corresponding to an integrated luminosity of 4.0 pb- 1 collected at a centre-of-mass energy s=2.76 TeV. The decay channels W→ ℓν and Z→ ℓℓ are used, where ℓ can be an electron or a muon. The cross-sections are presented for a fiducial region defined by the detector acceptance and are also extrapolated to the full phase space for the total inclusive production cross-section. The combined (average) total inclusive cross-sections for the electron and muon channels are: σW+→ℓνtot=2312±26(stat.)±27(syst.)±72(lumi.)±30(extr.)pb,σW-→ℓνtot=1399±21(stat.)±17(syst.)±43(lumi.)±21(extr.)pb,σZ→ℓℓtot=323.4±9.8(stat.)±5.0(syst.)±10.0(lumi.)±5.5(extr.)pb.Measured ratios and asymmetries constructed using these cross-sections are also presented. These observables benefit from full or partial cancellation of many systematic uncertainties that are correlated between the different measurements. | URI: | https://hdl.handle.net/10316/106928 | DOI: | 10.1140/epjc/s10052-019-7399-7 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
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Measurement-of-Wsupsup-boson-and-Zboson-production-crosssections-in-pp-collisions-at-s276-TeV-with-the-ATLAS-detectorEuropean-Physical-Journal-C.pdf | 1.48 MB | Adobe PDF | Ver/Abrir |
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