Measurement of the inclusive and fiducial tt¯ production cross-sections in the lepton+jets channel in pp collisions at s√=8 TeV with the ATLAS detector (2018)
- Authors:
- Autor USP: LEITE, MARCO AURELIO LISBOA - IF
- Unidade: IF
- DOI: 10.1140/epjc/s10052-018-5904-z
- Subjects: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS; LHC
- Agências de fomento:
- Language: Inglês
- Abstract: The inclusive and fiducial tt¯ production cross-sections are measured in the lepton+jets channel using 20.2 fb−1 of proton–proton collision data at a centre-of-mass energy of 8 TeV recorded with the ATLAS detector at the LHC. Major systematic uncertainties due to the modelling of the jet energy scale and b-tagging efficiency are constrained by separating selected events into three disjoint regions. In order to reduce systematic uncertainties in the most important background, the W+\,jets process is modelled using Z + jets events in a data-driven approach. The inclusive tt¯ cross-section is measured with a precision of 5.7% to be σinc(tt¯)=248.3±0.7(stat.)±13.4(syst.)±4.7(lumi.) pb , assuming a top-quark mass of 172.5 GeV. The result is in agreement with the Standard Model prediction. The cross-section is also measured in a phase space close to that of the selected data. The fiducial cross-section is σfid(tt¯)=48.8±0.1(stat.)±2.0(syst.)±0.9(lumi.) pb with a precision of 4.5%.
- Imprenta:
- Source:
- Título do periódico: European Journal Physical C
- ISSN: 1434-6044
- Volume/Número/Paginação/Ano: v. 78, n. 487, p. 1-31, 2018
- Este periódico é de acesso aberto
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: gold
- Licença: cc-by
-
ABNT
AABOUD, M et al. Measurement of the inclusive and fiducial tt¯ production cross-sections in the lepton+jets channel in pp collisions at s√=8 TeV with the ATLAS detector. European Journal Physical C, v. 78, n. 487, p. 1-31, 2018Tradução . . Disponível em: https://doi.org/10.1140/epjc/s10052-018-5904-z. Acesso em: 24 abr. 2024. -
APA
Aaboud, M., Donadelli, M., Rosa Navarro, J. L. L., & Leite, M. A. L. (2018). Measurement of the inclusive and fiducial tt¯ production cross-sections in the lepton+jets channel in pp collisions at s√=8 TeV with the ATLAS detector. European Journal Physical C, 78( 487), 1-31. doi:10.1140/epjc/s10052-018-5904-z -
NLM
Aaboud M, Donadelli M, Rosa Navarro JLL, Leite MAL. Measurement of the inclusive and fiducial tt¯ production cross-sections in the lepton+jets channel in pp collisions at s√=8 TeV with the ATLAS detector [Internet]. European Journal Physical C. 2018 ; 78( 487): 1-31.[citado 2024 abr. 24 ] Available from: https://doi.org/10.1140/epjc/s10052-018-5904-z -
Vancouver
Aaboud M, Donadelli M, Rosa Navarro JLL, Leite MAL. Measurement of the inclusive and fiducial tt¯ production cross-sections in the lepton+jets channel in pp collisions at s√=8 TeV with the ATLAS detector [Internet]. European Journal Physical C. 2018 ; 78( 487): 1-31.[citado 2024 abr. 24 ] Available from: https://doi.org/10.1140/epjc/s10052-018-5904-z - Contador proporcional sensivel a posição para raio x
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Informações sobre o DOI: 10.1140/epjc/s10052-018-5904-z (Fonte: oaDOI API)
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