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https://hdl.handle.net/1822/39927| Título: | Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at s√=7 TeV using the ATLAS detector |
| Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
| Palavras-chave: | Flavor physics Top physics Experimental results Hadron-Hadron Scattering |
| Data: | 2015 |
| Editora: | Springer Verlag |
| Revista: | Journal of High Energy Physics |
| Citação: | Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdinov, O., Aben, R., . . . collaboration, A. (2015). Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s=7 TeV using the ATLAS detector. Journal of High Energy Physics(5). doi: 10.1007/jhep05(2015)061 |
| Resumo(s): | A measurement of the top--antitop (tt¯) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb−1 of LHC pp collisions at a centre-of-mass energy of 7 TeV collected by the ATLAS detector. Events with two charged leptons, at least two jets and large missing transverse momentum are selected. Two observables are studied: AℓℓC based on the identified charged leptons, and Att¯C, based on the reconstructed tt¯ final state. The asymmetries are measured to be AℓℓC=0.024±0.015 (stat.)±0.009 (syst.), Att¯C=0.021±0.025 (stat.)±0.017 (syst.). The measured values are in agreement with the Standard Model predictions. |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/39927 |
| DOI: | 10.1007/JHEP05(2015)061 |
| ISSN: | 1029-8479 |
| e-ISSN: | 1029-8479 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| ATLAS-20150130.pdf | 1,07 MB | Adobe PDF | Ver/Abrir |
