Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/87764
Título: | Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment |
Autor(es): | Castro, Nuno Filipe Onofre, A. ATLAS Collaboration |
Palavras-chave: | Hadron-Hadron Scattering |
Data: | 2022 |
Editora: | Springer |
Revista: | Journal of High Energy Physics |
Citação: | Aad, G., Abbott, B., Abbott, D. C., Abud, A. A., Abeling, K., Abhayasinghe, D. K., . . . Collaboration, A. (2022). Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment. JOURNAL OF HIGH ENERGY PHYSICS(8). doi: 10.1007/jhep08(2022)089 |
Resumo(s): | This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/gamma*) in association with jets in proton-proton collisions for the ATLAS experiment at the Large Hadron Collider. Improvements pertaining to the electroweak input scheme, parton-shower splitting kernels and scale-setting scheme are shown for multi-jet merged configurations accurate to next-to-leading order in the strong and electroweak couplings. The computational resources required for these set-ups are assessed, and approximations are introduced resulting in a factor three reduction of the per-event CPU time without affecting the physics modelling performance. Continuous statistical enhancement techniques are introduced by ATLAS in order to populate low cross-section regions of phase space and are shown to match or exceed the generated effective luminosity. This, together with the lower per-event CPU time, results in a 50% reduction in the required computing resources compared to a legacy set-up previously used by the ATLAS collaboration. The set-ups described in this paper will be used for future ATLAS analyses and lay the foundation for the next generation of Monte Carlo predictions for single vector-boson plus jets production. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/87764 |
DOI: | 10.1007/jhep08(2022)089 |
ISSN: | 1126-6708 |
e-ISSN: | 1029-8479 |
Versão da editora: | https://link.springer.com/article/10.1007/JHEP08(2022)089 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JHEP08(2022)089.pdf | 2,44 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons