Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/45155
Título: | Test of CP invariance in vector-boson fusion production of the Higgs boson using the Optimal Observable method in the ditau decay channel with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Data: | 2016 |
Editora: | Springer Verlag |
Revista: | The European Physical Journal C: Particles and Fields |
Citação: | Aad, G., Abbott, B., Abdinov, O., Abdallah, J., Abeloos, B., Aben, R., . . . Collaboration, A. (2016). Test of CP invariance in vector-boson fusion production of the Higgs boson using the Optimal Observable method in the ditau decay channel with the ATLAS detector. European Physical Journal C, 76(12). doi: 10.1140/epjc/s10052-016-4499-5 |
Resumo(s): | A test of CP invariance in Higgs boson production via vector-boson fusion using the method of the Optimal Observable is presented. The analysis exploits the decay mode of the Higgs boson into a pair of τ leptons and is based on 20.3 fb−1 of proton–proton collision data at √s = 8 TeV collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described in an effective field theory framework, in which the strength of CP violation is governed by a single parameter ˜d. The mean values and distributions of CP-odd observables agree with the expectation in the Standard Model and show no sign of CP violation. The CP-mixing parameter ˜d is constrained to the interval (−0.11,0.05) at 68% confidence level, consistent with the Standard Model expectation of ˜d=0. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/45155 |
DOI: | 10.1140/epjc/s10052-016-4499-5 |
ISSN: | 1434-6044 |
e-ISSN: | 1434-6052 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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art_3A10.1140_2Fepjc_2Fs10052-016-4499-5.pdf | 2,21 MB | Adobe PDF | Ver/Abrir |