Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39950
Título: | Measurement of the production and lepton charge asymmetry of W bosons in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detec |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Palavras-chave: | Relativistic heavy ion physics Lepton production Particle and resonance production Experimental results |
Data: | 2015 |
Editora: | Springer Verlag |
Revista: | The European Physical Journal C: Particles and Fields |
Citação: | Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdinov, O., Aben, R., . . . Collaboration, A. (2015). Measurement of the production and lepton charge asymmetry of W bosons in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector. European Physical Journal C, 75(1). doi: 10.1140/epjc/s10052-014-3231-6 |
Resumo(s): | A measurement of W boson production in lead-lead collisions at sNN−−−√=2.76 TeV is presented. It is based on the analysis of data collected with the ATLAS detector at the LHC in 2011 corresponding to an integrated luminosity of 0.14 nb−1 and 0.15 nb−1 in the muon and electron decay channels, respectively. The differential production cross-sections and lepton charge asymmetry are each measured as a function of the average number of participating nucleons ⟨Npart⟩ and absolute pseudorapidity of the charged lepton. The results are compared to predictions based on next-to-leading-order QCD calculations. These measurements are, in principle, sensitive to possible nuclear modifications to the parton distribution functions and also provide information on scaling of W boson production in multi-nucleon systems. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39950 |
DOI: | 10.1140/epjc/s10052-014-3231-6 |
ISSN: | 1434-6044 1434-6052 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
10.1140-epjc-s10052-014-3231-6.pdf | 18,39 MB | Adobe PDF | Ver/Abrir |