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Abstract:

Two searches for supersymmetric particles in final states containing a same-flavour opposite-sign lepton pair, jets and large missing transverse momentum are presented. The proton–proton collision data used in these searches were collected at a centre-of-mass energy √s =8TeV by the ATLAS detector at the Large Hadron Collider and corresponds to an integrated luminosity of 20.3 fb −1 . Two leptonic production mechanisms are considered: decays of squarks and gluinos with Z bosons in the final state, resulting in a peak in the dilepton invariant mass distribution around the Z-boson mass; and decays of neutralinos (e.g.(Formula presented.)), resulting in a kinematic endpoint in the dilepton invariant mass distribution. For the former, an excess of events above the expected Standard Model background is observed, with a significance of three standard deviations. In the latter case, the data are well-described by the expected Standard Model background. The results from each channel are interpreted in the context of several supersymmetric models involving the production of squarks and gluinos. © CERN for the benefit of the ATLAS collaboration 2015.

Registro:

Documento: Artículo
Título:Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8TeV pp collisions with the ATLAS detector
Autor:ATLAS Collaboration et al.
Este artículo contiene 2822 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2822 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2015
Volumen:75
Número:7
Página de inicio:1
Página de fin:40
DOI: http://dx.doi.org/10.1140/epjc/s10052-015-3518-2
Título revista:European Physical Journal C
Título revista abreviado:Eur. Phys. J. C
ISSN:14346044
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v75_n7_p1_ATLASCollaboration

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Citas:

---------- APA ----------
(2015) . Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8TeV pp collisions with the ATLAS detector. European Physical Journal C, 75(7), 1-40.
http://dx.doi.org/10.1140/epjc/s10052-015-3518-2
---------- CHICAGO ----------
ATLAS Collaboration. "Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8TeV pp collisions with the ATLAS detector" . European Physical Journal C 75, no. 7 (2015) : 1-40.
http://dx.doi.org/10.1140/epjc/s10052-015-3518-2
---------- MLA ----------
ATLAS Collaboration. "Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8TeV pp collisions with the ATLAS detector" . European Physical Journal C, vol. 75, no. 7, 2015, pp. 1-40.
http://dx.doi.org/10.1140/epjc/s10052-015-3518-2
---------- VANCOUVER ----------
ATLAS Collaboration. Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8TeV pp collisions with the ATLAS detector. Eur. Phys. J. C. 2015;75(7):1-40.
http://dx.doi.org/10.1140/epjc/s10052-015-3518-2