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https://hdl.handle.net/1822/48855| Título: | Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV |
| Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
| Data: | 2012 |
| Editora: | Springer Verlag |
| Revista: | European Physical Journal C: Particles and Fields |
| Citação: | Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., Abdesselam, A., . . . Collaboration, A. (2012). Measurement of tau polarization in W -> tau nu decays with the ATLAS detector in pp collisions at root s=7 TeV. European Physical Journal C, 72(7). doi: 10.1140/epjc/s10052-012-2062-6 |
| Resumo(s): | In this paper, a measurement of τ polarization in W→τν decays is presented. It is measured from the energies of the decay products in hadronic τ decays with a single final state charged particle. The data, corresponding to an integrated luminosity of 24 pb−1, were collected by the ATLAS experiment at the Large Hadron Collider in 2010. The measured value of the τ polarization is Pτ=−1.06±0.04 (stat)+0.05−0.07 (syst), in agreement with the Standard Model prediction, and is consistent with a physically allowed 95 % CL interval [−1,−0.91]. Measurements of τ polarization have not previously been made at hadron colliders. |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/48855 |
| DOI: | 10.1140/epjc/s10052-012-2062-6 |
| ISSN: | 1434-6044 |
| e-ISSN: | 1434-6052 |
| Versão da editora: | http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-012-2062-6 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| art_3A10.1140_2Fepjc_2Fs10052-012-2062-6.pdf | 1,53 MB | Adobe PDF | Ver/Abrir |
