@Article{ATLASCollaborationAaboud_etal2018, author="ATLAS Collaboration (Aaboud, M. et al and Alvarez Piqueras, D. and Aparisi Pozo, J. A. 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 Fullana Torregrosa, E. 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 Rodriguez Bosca, S. and Rodriguez Rodriguez, D. and Ruiz-Martinez, A. and Salt, J. and Santra, A. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Combination of the Searches for Pair-Produced Vectorlike Partners of the Third-Generation Quarks at root s=13 TeV with the ATLAS Detector", journal="Physical Review Letters", year="2018", publisher="Amer Physical Soc", volume="121", number="21", pages="211801 - 20pp", abstract="A combination of the searches for pair-produced vectorlike partners of the top and bottom quarks in various decay channels (T -> Zt/Wb/Ht, B -> Zb/Wt/Hb) is performed using 36.1 fb(-1) of pp collision data at root s = 13 TeV with the ATLAS detector at the Large Hadron Collider. The observed data are found to be in good agreement with the standard model background prediction in all individual searches. Therefore, combined 95{\%} confidence-level upper limits are set on the production cross section for a range of vectorlike quark scenarios, significantly improving upon the reach of the individual searches. Model-independent limits are set assuming the vectorlike quarks decay to standard model particles. A singlet T is excluded for masses below 1.31 TeV and a singlet B is excluded for masses below 1.22 TeV. Assuming a weak isospin (T, B) doublet and vertical bar V-Tb vertical bar << vertical bar V-tB vertical bar, T and B masses below 1.37 TeV are excluded.", optnote="WOS:000451008600002", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3820), last updated on Fri, 07 Dec 2018 09:59:14 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.121.211801", opturl="http://arxiv.org/abs/1808.02343", opturl="https://doi.org/10.1103/PhysRevLett.121.211801", archivePrefix="arXiv", eprint="1808.02343", language="English" }