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https://hdl.handle.net/10316/108256
Título: | Measurement of b-hadron pair production with the ATLAS detector in proton-proton collisions at √s=8 TeV | Autor: | Santos, S. P. Amor dos Carvalho, J. Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Palavras-chave: | B physics; Hadron-Hadron scattering (experiments) | Data: | 2017 | Editora: | Springer Nature | Título da revista, periódico, livro ou evento: | Journal of High Energy Physics | Volume: | 2017 | Número: | 11 | Resumo: | A measurement of b-hadron pair production is presented, based on a data set corresponding to an integrated luminosity of 11.4 fb−1 of proton-proton collisions recorded at s=8 TeV with the ATLAS detector at the LHC. Events are selected in which a b-hadron is reconstructed in a decay channel containing J/ψ → μμ, and a second b-hadron is reconstructed in a decay channel containing a muon. Results are presented in a fiducial volume defined by kinematic requirements on three muons based on those used in the analysis. The fiducial cross section is measured to be 17.7 ± 0.1(stat.) ± 2.0(syst.) nb. A number of normalised differential cross sections are also measured, and compared to predictions from the Pythia8, Herwig++, MadGraph5_aMC@NLO+Pythia8 and Sherpa event generators, providing new constraints on heavy flavour production. | URI: | https://hdl.handle.net/10316/108256 | DOI: | 10.1007/JHEP11(2017)062 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Measurement-of-bhadron-pair-production-with-the-ATLAS-detector-in-protonproton-collisions-at-s8-TeVJournal-of-High-Energy-Physics.pdf | 1.02 MB | Adobe PDF | Ver/Abrir |
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