A search for prompt lepton-jets in pp collisions at \sqrt{s}=7 TeV with the ATLAS detector

We present a search for a light (mass ) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, denoted “lepton-jets”. The analysis uses of proton–proton collision data recorded by the ATLAS detector at the Large Hadron Colli...

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Detalles Bibliográficos
Autores: Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., González Silva, María Laura, Otero y Garzon, Gustavo Javier, Piegaia, Ricardo Nestor, Romeo, Gaston Leonardo, Alonso, Francisco, Anduaga, Xabier Sebastian, Dova, Maria Teresa, Monticelli, Fernando Gabriel, Tripiana, Martin Fernando, Zibell, A., Zieminska, D., Zimine, N. I., Zimmermann, C., Zimmermann, R., Zimmermann, S., Ziolkowski, M., Zitoun, R., Živković, L., Zobernig, G., Zoccoli, A., Nedden, M. zur, Zutshi, V., Zwalinski, L., The ATLAS Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/72083
Acceso en línea:http://hdl.handle.net/11336/72083
Access Level:acceso abierto
Palabra clave:ATLAS
Prompt-lepton
Jets
LHC
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Descripción
Sumario:We present a search for a light (mass ) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, denoted “lepton-jets”. The analysis uses of proton–proton collision data recorded by the ATLAS detector at the Large Hadron Collider to search for the following signatures: single lepton-jets with at least four muons; pairs of lepton-jets, each with two or more muons; and pairs of lepton-jets with two or more electrons. This study finds no statistically significant deviation from the Standard Model prediction and places 95% confidence-level exclusion limits on the production cross section times branching ratio of light bosons for several parameter sets of a Hidden Valley model.

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