Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/31926
Título: | Search for excited electrons and muons in s√=8 TeV proton-proton collisions with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Data: | 2013 |
Editora: | IOP Publishing |
Revista: | New Journal of Physics |
Citação: | Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., . . . Zwalinski, L. (2013). Search for excited electrons and muons in √s=8 TeV proton-proton collisions with the ATLAS detector. New Journal of Physics, 15. doi: 10.1088/1367-2630/15/9/093011 |
Resumo(s): | The ATLAS detector at the Large Hadron Collider is used to search for excited electrons and excited muons in the channel pp → ``∗ → ``γ , assuming that excited leptons are produced via contact interactions. The analysis is based on 13 fb−1 of pp collisions at a centre-of-mass energy of 8 TeV. No evidence for excited leptons is found, and a limit is set at the 95% credibility level on the cross section times branching ratio as a function of the excitedlepton mass m` ∗ . For m` ∗ > 0.8 TeV, the respective upper limits on σ B(`∗ → `γ ) are 0.75 and 0.90 fb for the e ∗ and µ ∗ searches. Limits on σ B are converted into lower bounds on the compositeness scale 3. In the special case where 3 = m` ∗ , excited-electron and excited-muon masses below 2.2 TeV are excluded. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/31926 |
DOI: | 10.1088/1367-2630/15/9/093011 |
ISSN: | 1367-2630 |
Versão da editora: | http://iopscience.iop.org/1367-2630/15/9/093011/ |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Search for excited electrons and muons.pdf | 673,58 kB | Adobe PDF | Ver/Abrir |