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Abstract:

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 tt̄ invariant mass spectrum is found to be compatible with the Standard Model prediction and 95% credibility level upper limits are derived on the tt̄ 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.

Registro:

Documento: Artículo
Título:A search for tt̄ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2874 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2874 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Hadron-hadron scattering
Año:2012
Volumen:2012
Número:9
DOI: http://dx.doi.org/10.1007/JHEP09(2012)041
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2012_n9_p_Aad

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Citas:

---------- APA ----------
(2012) . A search for tt̄ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7TeV with the ATLAS detector. Journal of High Energy Physics, 2012(9).
http://dx.doi.org/10.1007/JHEP09(2012)041
---------- CHICAGO ----------
Aad, G. "A search for tt̄ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7TeV with the ATLAS detector" . Journal of High Energy Physics 2012, no. 9 (2012).
http://dx.doi.org/10.1007/JHEP09(2012)041
---------- MLA ----------
Aad, G. "A search for tt̄ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7TeV with the ATLAS detector" . Journal of High Energy Physics, vol. 2012, no. 9, 2012.
http://dx.doi.org/10.1007/JHEP09(2012)041
---------- VANCOUVER ----------
Aad, G. A search for tt̄ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7TeV with the ATLAS detector. J. High Energy Phys. 2012;2012(9).
http://dx.doi.org/10.1007/JHEP09(2012)041