Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39856
Título: | Modelling Z→ττ processes in ATLAS with τ-embedded Z→μμ data |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Palavras-chave: | Performance of High Energy Physics Detectors Simulation methods and programs Analysis and statistical methods |
Data: | 2015 |
Editora: | IOP Publishing |
Revista: | Journal of Instrumentation |
Citação: | Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., . . . Collaboration, A. (2015). Modelling Z -> tau tau processes in ATLAS with tau-embedded Z -> mu mu data. Journal of Instrumentation, 10. doi: 10.1088/1748-0221/10/09/p09018 |
Resumo(s): | This paper describes the concept, technical realisation and validation of a largely data-driven method to model events with Z→ττ decays. In Z→μμ events selected from proton-proton collision data recorded at s√=8 TeV with the ATLAS experiment at the LHC in 2012, the Z decay muons are replaced by τ leptons from simulated Z→ττ decays at the level of reconstructed tracks and calorimeter cells. The τ lepton kinematics are derived from the kinematics of the original muons. Thus, only the well-understood decays of the Z boson and τ leptons as well as the detector response to the τ decay products are obtained from simulation. All other aspects of the event, such as the Z boson and jet kinematics as well as effects from multiple interactions, are given by the actual data. This so-called τ-embedding method is particularly relevant for Higgs boson searches and analyses in ττ final states, where Z→ττ decays constitute a large irreducible background that cannot be obtained directly from data control samples. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39856 |
DOI: | 10.1088/1748-0221/10/09/p09018 |
ISSN: | 1748-0221 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Modelling Z.pdf | 2,56 MB | Adobe PDF | Ver/Abrir |