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Abstract:

A search is presented for direct top-squark pair production in final states with two leptons (electrons or muons) of opposite charge using 20.3 fb -1 of pp collision data at √s = 8 TeV, collected by the ATLAS experiment at the Large Hadron Collider in 2012. No excess over the Standard Model expectation is found. The results are interpreted under the separate assumptions (i) that the top squark decays to a b-quark in addition to an on-shell chargino whose decay occurs via a real or virtual W boson, or (ii) that the top squark decays to a t-quark and the lightest neutralino. A top squark with a mass between 150 GeV and 445 GeV decaying to a b-quark and an on-shell chargino is excluded at 95% confidence level for a top squark mass equal to the chargino mass plus 10 GeV, in the case of a 1 GeV lightest neutralino. Top squarks with masses between 215 (90) GeV and 530 (170) GeV decaying to an on-shell (off-shell) t-quark and a neutralino are excluded at 95% confidence level for a 1 GeV neutralino. [Figure not available: see fulltext.] © 2014 The Author(s).

Registro:

Documento: Artículo
Título:Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2900 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2900 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Hadron-Hadron Scattering
Año:2014
Volumen:2014
Número:6
DOI: http://dx.doi.org/10.1007/JHEP06(2014)124
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_v2014_n6_p_Aad

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Citas:

---------- APA ----------
(2014) . Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector. Journal of High Energy Physics, 2014(6).
http://dx.doi.org/10.1007/JHEP06(2014)124
---------- CHICAGO ----------
Aad, G. "Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector" . Journal of High Energy Physics 2014, no. 6 (2014).
http://dx.doi.org/10.1007/JHEP06(2014)124
---------- MLA ----------
Aad, G. "Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector" . Journal of High Energy Physics, vol. 2014, no. 6, 2014.
http://dx.doi.org/10.1007/JHEP06(2014)124
---------- VANCOUVER ----------
Aad, G. Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector. J. High Energy Phys. 2014;2014(6).
http://dx.doi.org/10.1007/JHEP06(2014)124