Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC

Aad, G.; Abajyan, T.; Abbott, B.; Böhm, Jan; Chudoba, Jiří; Gallus, Petr; Gunther, Jaroslav; Jakoubek, Tomáš; Juránek, Vojtěch; Kepka, Oldřich; Kupčo, Alexander; Kůs, Vlastimil; Lokajíček, Miloš; Marčišovský, Michal; Mikeštíková, Marcela; Myška, Miroslav; Němeček, Stanislav; Růžička, Pavel; Schovancová, Jaroslava; Šícho, Petr; Staroba, Pavel; Svatoš, Michal; Taševský, Marek; Tic, Tomáš; Valenta, J.; Vrba, Václav; Zeman, Martin

doi:https://dx.doi.org/10.1007/JHEP11(2012)094

Number of the records: 1

Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC

1.

SYSNO ASEP	0389862
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC
Author(s)	Aad, G. (DE) Abajyan, T. (DE) Abbott, B. (US) Böhm, Jan (FZU-D) Chudoba, Jiří (FZU-D)_{RID, ORCID} Gallus, Petr (FZU-D)_RID Gunther, Jaroslav (FZU-D) Jakoubek, Tomáš (FZU-D)_{RID, ORCID} Juránek, Vojtěch (FZU-D) Kepka, Oldřich (FZU-D)_{RID, ORCID} Kupčo, Alexander (FZU-D)_{RID, ORCID} Kůs, Vlastimil (FZU-D)_RID Lokajíček, Miloš (FZU-D)_{RID, ORCID} Marčišovský, Michal (FZU-D)_{RID, ORCID} Mikeštíková, Marcela (FZU-D)_{RID, ORCID} Myška, Miroslav (FZU-D) Němeček, Stanislav (FZU-D)_{RID, ORCID} Růžička, Pavel (FZU-D) Schovancová, Jaroslava (FZU-D) Šícho, Petr (FZU-D)_{RID, ORCID} Staroba, Pavel (FZU-D)_{RID, ORCID} Svatoš, Michal (FZU-D)_{RID, ORCID} Taševský, Marek (FZU-D)_{RID, ORCID} Tic, Tomáš (FZU-D) Valenta, J. (CZ) Vrba, Václav (FZU-D)_{RID, ORCID} Zeman, Martin (FZU-D)_RID
Number of authors	3085
Source Title	Journal of High Energy Physics. - : Springer - ISSN 1126-6708 Roč. 2012, č. 11 (2012), 1-18
Number of pages	18 s.
Language	eng - English
Country	US - United States
Keywords	ATLAS ; pp scattering ; lepton ; heavy quark ; pair production ; supersymmetry
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LA08032 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000312198500029
DOI	10.1007/JHEP11(2012)094
Annotation	The results of a search for direct pair production of heavy top-quark partners in 4.7 fb-1 of integrated luminosity from pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector at the LHC are reported. Heavy top-quark partners decaying into a top quark and a neutral non-interacting particle are searched for in events with two leptons in the final state. No excess above the Standard Model expectation is observed. Limits are placed on the mass of a supersymmetric scalar top and of a spin-1/2 top-quark partner. A spin-1/2 top-quark partner with a mass between 300 GeV and 480 GeV, decaying to a top quark and a neutral non-interacting particle lighter than 100 GeV, is excluded at 95% confidence level.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2013

Number of the records: 1