Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/43714
Título: | Search for resonances in diphoton events at root s=13TeV with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Palavras-chave: | Beyond Standard Model Hadron-Hadron scattering (experiments) Hard scattering Particle and resonance production proton-proton scattering |
Data: | 2016 |
Editora: | Springer Verlag |
Revista: | Journal of High Energy Physics |
Citação: | Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., . . . Collaboration, A. (2016). Search for resonances in diphoton events at root s=13TeV with the ATLAS detector. Journal of High Energy Physics(9). doi: 10.1007/jhep09(2016)001 |
Resumo(s): | Searches for new resonances decaying into two photons in the ATLAS experiment at the CERN Large Hadron Collider are described. The analysis is based on proton-proton collision data corresponding to an integrated luminosity of 3.2 fb−1 at √s=13 TeV recorded in 2015. Two searches are performed, one targeted at a spin-2 particle of mass larger than 500 GeV, using Randall-Sundrum graviton states as a benchmark model, and one optimized for a spin-0 particle of mass larger than 200 GeV. Varying both the mass and the decay width, the most significant deviation from the background-only hypothesis is observed at a diphoton invariant mass around 750 GeV with local significances of 3.8 and 3.9 standard deviations in the searches optimized for a spin-2 and spin-0 particle, respectively. The global significances are estimated to be 2.1 standard deviations for both analyses. The consistency between the data collected at 13 TeV and 8 TeV is also evaluated. Limits on the production cross section times branching ratio to two photons for the two resonance types are reported. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/43714 |
DOI: | 10.1007/jhep09(2016)001 |
ISSN: | 1029-8479 |
e-ISSN: | 1029-8479 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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art_3A10.1007_2FJHEP09_282016_29001.pdf | 2,07 MB | Adobe PDF | Ver/Abrir |