Search for pair production of heavy vector-like quarks decaying into high-pTW bosons and top quarks in the lepton-plus-jets final state in pp collisions at s=13 TeV with the ATLAS detector

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 s=13$$ \sqrt{s}=13 $$ TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Co