Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/63664
Título: | Search for lepton-flavor-violating decays of the Z boson into a r lepton and a light lepton with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe ATLAS Collaboration |
Data: | 2018 |
Editora: | American Physical Society |
Revista: | Physical Review D |
Resumo(s): | Direct searches for lepton flavor violation in decays of the Z boson with the ATLAS detector at the LHC are presented. Decays of the Z boson into an electron or muon and a hadronically decaying r lepton are considered. The searches are based on a data sample of proton-proton collisions collected by the ATLAS detector in 2015 and 2016, corresponding to an integrated luminosity of 36.1 fb(-1) at a center-of-mass energy of root s = 13 TeV. No statistically significant excess of events above the expected background is observed, and upper limits on the branching ratios of lepton-flavor-violating decays are set at the 95% confidence level: B(Z -> e tau) < 5.8 x 10(-5) and B(Z -> mu tau) < 2.4 x 10(-5). This is the first limit on B(Z -> e tau) with ATLAS data. The upper limit on 13(Z -> mu tau) is combined with a previous ATLAS result based on 20.3 fb(-1) of proton protoncollision data at a center-of-mass energy of root s = 8 TeV and the combined upper limit at 95% confidence level is B(Z -> mu tau) < 1.3 x 10(-5). |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/63664 |
DOI: | 10.1103/PhysRevD.98.092010 |
ISSN: | 2470-0010 |
Versão da editora: | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.092010 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PhysRevD.98.092010.pdf | 1,53 MB | Adobe PDF | Ver/Abrir |