Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/48806
Título: | A search for t(t)over-bar resonances in lepton plus jets events with highly boosted top quarks collected in pp collisions at root s=7 TeV with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Palavras-chave: | Hadron-Hadron Scattering |
Data: | 2012 |
Editora: | Springer Verlag |
Revista: | Journal of High Energy Physics |
Citação: | Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., . . . Collaboration, A. (2012). A search for t(t)over-bar resonances in lepton plus jets events with highly boosted top quarks collected in pp collisions at root s=7 TeV with the ATLAS detector. Journal of High Energy Physics(9). doi: 10.1007/jhep09(2012)041 |
Resumo(s): | A search for resonant production of high-mass top-quark pairs is performed on 2.05 fb−1 of proton-proton collisions at √s=7 TeV collected in 2011 with the ATLAS experiment at the Large Hadron Collider. This analysis of the lepton+jets final state is specifically designed for the particular topology that arises from the decay of highly boosted top quarks. The observed t¯t invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the t¯t production rate through new massive states. An upper limit of 0.7 pb is set on the production cross section times branching fraction of a narrow 1 TeV resonance. A Kaluza-Klein gluon with a mass smaller than 1.5 TeV is excluded. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/48806 |
DOI: | 10.1007/jhep09(2012)041 |
ISSN: | 1029-8479 |
e-ISSN: | 1029-8479 |
Versão da editora: | http://link.springer.com/article/10.1007%2FJHEP09%282012%29041 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
art_3A10.1007_2FJHEP09_282012_29041.pdf | 1,12 MB | Adobe PDF | Ver/Abrir |