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Abstract:

A search for a massive W′ gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The datasetwas taken at a centre-of-mass energy of √s = 8 TeV and corresponds to 20.3 fb −1 of integrated luminosity. This analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. This allows for a search for high-mass W′ bosons in the range 1.5-3.0 TeV. b-tagging is used to identify jets originating from b-quarks. The data are consistent with Standard Model background-only expectations, and upper limits at 95%confidence level are set on the W′ → tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed W′ bosons, and ranging from 0.10 pb to 0.21 pb for W′ bosons with purely righthanded couplings. Upper limits at 95% confidence level are set on the W′-boson coupling to tb as a function of the W′ mass using an effective field theory approach, which is independent of details of particular models predicting a W′ boson. © 2015, CERN for the benefit of the ATLAS collaboration.

Registro:

Documento: Artículo
Título:Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector
Autor:ATLAS Collaboration et al.
Este artículo contiene 2892 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2892 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2015
Volumen:75
Número:4
Página de inicio:1
Página de fin:23
DOI: http://dx.doi.org/10.1140/epjc/s10052-015-3372-2
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_n4_p1_ATLASCollaboration

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Citas:

---------- APA ----------
(2015) . Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector. European Physical Journal C, 75(4), 1-23.
http://dx.doi.org/10.1140/epjc/s10052-015-3372-2
---------- CHICAGO ----------
ATLAS Collaboration. "Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector" . European Physical Journal C 75, no. 4 (2015) : 1-23.
http://dx.doi.org/10.1140/epjc/s10052-015-3372-2
---------- MLA ----------
ATLAS Collaboration. "Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector" . European Physical Journal C, vol. 75, no. 4, 2015, pp. 1-23.
http://dx.doi.org/10.1140/epjc/s10052-015-3372-2
---------- VANCOUVER ----------
ATLAS Collaboration. Search for W’→tb→qq bb decays in pp collisions at √s = 8 TeV with the ATLAS detector. Eur. Phys. J. C. 2015;75(4):1-23.
http://dx.doi.org/10.1140/epjc/s10052-015-3372-2