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Abstract:

A search for new phenomena in events with two same-charge leptons or three leptons and jets identified as originating from b-quarks in a data sample of 36.1 fb −1 of pp collisions at s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider is reported. No significant excess is found and limits are set on vector-like quark, four-top-quark, and same-sign top-quark pair production. The observed (expected) 95% CL mass limits for a vector-like T- and B-quark singlet are m T > 0.98 (0.99) TeV and m B > 1.00 (1.01) TeV respectively. Limits on the production of the vector-like T 5/3 -quark are also derived considering both pair and single production; in the former case the lower limit on the mass of the T 5/3 -quark is (expected to be) 1.19 (1.21) TeV. The Standard Model four-top-quark production cross-section upper limit is (expected to be) 69 (29) fb. Constraints are also set on exotic four-top-quark production models. Finally, limits are set on same-sign top-quark pair production. The upper limit on uu → tt production is (expected to be) 89 (59) fb for a mediator mass of 1 TeV, and a dark-matter interpretation is also derived, excluding a mediator of 3 TeV with a dark-sector coupling of 1.0 and a coupling to ordinary matter above 0.31.[Figure not available: see fulltext.] © 2018, The Author(s).

Registro:

Documento: Artículo
Título:Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13 TeV with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2924 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2924 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Hadron-Hadron scattering (experiments)
Año:2018
Volumen:2018
Número:12
DOI: http://dx.doi.org/10.1007/JHEP12(2018)039
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_v2018_n12_p_Aaboud

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Citas:

---------- APA ----------
(2018) . Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13 TeV with the ATLAS detector. Journal of High Energy Physics, 2018(12).
http://dx.doi.org/10.1007/JHEP12(2018)039
---------- CHICAGO ----------
Aaboud, M. "Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13 TeV with the ATLAS detector" . Journal of High Energy Physics 2018, no. 12 (2018).
http://dx.doi.org/10.1007/JHEP12(2018)039
---------- MLA ----------
Aaboud, M. "Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13 TeV with the ATLAS detector" . Journal of High Energy Physics, vol. 2018, no. 12, 2018.
http://dx.doi.org/10.1007/JHEP12(2018)039
---------- VANCOUVER ----------
Aaboud, M. Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13 TeV with the ATLAS detector. J. High Energy Phys. 2018;2018(12).
http://dx.doi.org/10.1007/JHEP12(2018)039