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https://hdl.handle.net/10316/109203
Título: | A search for high-mass resonances decaying to τ+τ− in pp collisions at √s =8 TeV with the ATLAS detector | Autor: | Santos, S. P. Amor dos Carvalho, J. Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Palavras-chave: | Hadron-Hadron Scattering | Data: | 2015 | Editora: | Springer Nature | Título da revista, periódico, livro ou evento: | Journal of High Energy Physics | Volume: | 2015 | Número: | 7 | Resumo: | A search for high-mass resonances decaying into τ+τ− final states using proton-proton collisions at s=8$$ \sqrt{s}=8 $$ TeV produced by the Large Hadron Collider is presented. The data were recorded with the ATLAS detector and correspond to an integrated luminosity of 19.5–20.3 fb−1. No statistically significant excess above the Standard Model expectation is observed; 95% credibility upper limits are set on the cross section times branching fraction of Z′ resonances decaying into τ+τ− pairs as a function of the resonance mass. As a result, Z′ bosons of the Sequential Standard Model with masses less than 2.02 TeV are excluded at 95% credibility. The impact of the fermionic couplings on the Z′ acceptance is investigated and limits are also placed on a Z′ model that exhibits enhanced couplings to third-generation fermions. | URI: | https://hdl.handle.net/10316/109203 | DOI: | 10.1007/JHEP07(2015)157 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
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A-search-for-highmass-resonances-decaying-to-supsupsupsup-in-pp-collisions-at-s-8-TeV-with-the-ATLAS-detectorJournal-of-High-Energy-Physics.pdf | 1.18 MB | Adobe PDF | Ver/Abrir |
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