@Article{ATLASCollaborationAaboud_etal2018, author="ATLAS Collaboration (Aaboud, M. et al and Alvarez Piqueras, D. and Bailey, A. J. and Barranco Navarro, L. and Cabrera Urban, S. and Castillo, F. L. and Castillo Gimenez, V. and Cerda Alberich, L. and Costa, M. J. and Escobar, C. and Estrada Pastor, O. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Higon-Rodriguez, E. and Jimenez Pena, J. and Lacasta, C. and Lozano Bahilo, J. J. and Madaffari, D. and Mamuzic, J. and Marti-Garcia, S. and Melini, D. and Mi{\~A}{\textpm}ano, M. and Mitsou, V. A. and Pedraza Lopez, S. and Rodriguez Bosca, S. and Rodriguez Rodriguez, D. and Salt, J. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Search for pair production of heavy vector-like quarks decaying into high-(PT) W bosons and top quarks in the lepton-plus-jets final state in pp collisions at root s=13 TeV with the ATLAS detector", journal="Journal of High Energy Physics", year="2018", publisher="Springer", volume="08", number="8", pages="048--41pp", optkeywords="Exotics; Hadron-Hadron scattering (experiments); vector-like quarks", abstract="A search is presented for the pair production of heavy vector-like B quarks, primarily targeting B quark decays into a W boson and a top quark. The search is based on 36.1 fb(-1) of pp collisions at root s = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Data are analysed in the lepton-plus-jets final state, characterised by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, and multiple jets, of which at least one is b-tagged. No significant deviation from the Standard Model expectation is observed. The 95{\%} confidence level lower limit on the B mass is 1350 GeV assuming a 100{\%} branching ratio to Wt. In the SU(2) singlet scenario, the lower mass limit is 1170 GeV. The 100{\%} branching ratio limits are found to be also applicable to heavy vector-like X production, with charge +5/3, that decay into Wt. This search is also sensitive to a heavy vector-like B quark decaying into other final states (Zb and Hb) and thus mass limits on B production are set as a function of the decay branching ratios.", optnote="WOS:000441349900001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3692), last updated on Mon, 27 Aug 2018 12:05:34 +0000", issn="1029-8479", doi="10.1007/JHEP08(2018)048", opturl="http://arxiv.org/abs/1806.01762", opturl="https://doi.org/10.1007/JHEP08(2018)048", archivePrefix="arXiv", eprint="1806.01762", language="English" }