Search for Scalar Diphoton Resonances in the Mass Range 65–600 GeV with the ATLAS Detector in √ pp Collision Data at s = 8 TeV

A search for scalar particles decaying via narrow resonances into two photons in the mass range 65?600 GeV is performed using 20.3  fb-1 of s=8  TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No si...

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Detalhes bibliográficos
Autores: Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Otero y Garzon, Gustavo Javier, Piegaia, Ricardo Nestor, Sacerdoti, Sabrina, Reisin, Hernan Diego, Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastian, Arduh, Francisco Anuar, Dova, Maria Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernan Pablo, Zhukov, K., Zibell, A., Zieminska, D., Zimine, N. I., Zimmermann, C., Zimmermann, R., Zimmermann, S., Ziolkowski, M., Zobernig, G., Zoccoli, A., Nedden, M. zur, Zurzolo, G., Zutshi, V., Zwalinski, L., The ATLAS Collaboration
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2014
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/105241
Acesso em linha:http://hdl.handle.net/11336/105241
Access Level:Acceso aberto
Palavra-chave:ATLAS
LHC
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Descrição
Resumo:A search for scalar particles decaying via narrow resonances into two photons in the mass range 65?600 GeV is performed using 20.3  fb-1 of s=8  TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No significant evidence for an additional signal is observed. The results are presented as limits at the 95% confidence level on the production cross section of a scalar boson times branching ratio into two photons, in a fiducial volume where the reconstruction efficiency is approximately independent of the event topology. The upper limits set extend over a considerably wider mass range than previous searches.

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