@misc{10481/95891, year = {2017}, month = {10}, url = {https://hdl.handle.net/10481/95891}, abstract = {A search is presented for the pair production of heavy vector-like T quarks, primarily targeting the T quark decays to a W boson and a b-quark. The search is based on 36.1 fb−1 of pp collisions at √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, including at least one b-tagged jet and a large-radius jet identified as originating from the hadronic decay of a high-momentum W boson. No significant deviation from the Standard Model expectation is observed in the reconstructed T mass distribution. The observed 95% confidence level lower limit on the T mass are 1350 GeV assuming 100% branching ratio to Wb. In the SU(2) singlet scenario, the lower mass limit is 1170 GeV. This search is also sensitive to a heavy vector-like B quark decaying to Wt and other final states. The results are thus reinterpreted to provide a 95% confidence level lower limit on the B quark mass at 1250 GeV assuming 100% branching ratio to Wt; in the SU(2) singlet scenario, the limit is 1080 GeV. Mass limits on both T and B production are also set as a function of the decay branching ratios. The 100% branching ratio limits are found to be applicable to heavy vector-like Y and X production that decay to Wb and Wt, respectively.}, organization = {CERN}, organization = {MINECO}, organization = {EPLANET}, organization = {ERC}, organization = {ERDF}, organization = {FP7}, organization = {Horizon 2020}, organization = {Marie Skłodowska-Curie Actions}, organization = {CERCA Programme Generalitat de Catalunya}, organization = {Generalitat Valenciana}, publisher = {Springer Nature}, keywords = {Exotics}, keywords = {Hadron-Hadron scattering (experiments)}, title = {Search for pair production of heavy vector-like quarks decaying to high-pT W bosons and b quarks in the lepton-plus-jets final state in pp collisions at √s = 13TeV with the ATLAS detector}, doi = {10.1007/JHEP10(2017)141}, author = {Aaboud, M. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration, /}, }