@article{oai:tsukuba.repo.nii.ac.jp:00049363,
 author = {原, 和彦 and HARA, Kazuhiko and 金, 信弘 and KIM, Shinhong(nobuhiro) and 大川, 英希 and OKAWA, Hideki and 佐藤, 構二 and SATO, Koji and 受川, 史彦 and UKEGAWA, Fumihiko and ATLA Collaboration},
 issue = {9},
 journal = {Physical review D},
 month = {Nov},
 note = {A search is presented for the pair production of heavy vectorlike quarks, T¯Tor B¯B, that decay into final states with jets and no reconstructed leptons. Jets in the final state are classified using a deep neural network as arising from hadronically decaying W/Z bosons, Higgs bosons, top quarks, or background. The analysis uses data from the ATLAS experiment corresponding to 36.1 fb^-1 of proton-proton collisions with a center-of-mass energy of √s=13 TeV delivered by the Large Hadron Collider in 2015 and 2016. No significant deviation from the Standard Model expectation is observed. Results are interpreted assuming the vectorlike quarks decay into a Standard Model boson and a third-generation-quark, T→Wb,Ht,Zt or B→Wt,Hb,Zb, for a variety of branching ratios. At 95% confidence level, the observed (expected) lower limit on the vectorlike B-quark mass for a weak-isospin doublet (B, Y) is 950 (890) GeV, and the lower limits on the masses for the pure decays B→Hb and T→Ht, where these results are strongest, are 1010 (970) GeV and 1010 (1010) GeV, respectively.},
 title = {Search for pair production of heavy vectorlike quarks decaying into hadronic final states in pp collisions at √s=13 TeV with the ATLAS detector},
 volume = {98},
 year = {2018},
 yomi = {ハラ, カズヒコ and キム, シンホン and オオカワ, ヒデキ and サトウ, コウジ and ウケガワ, フミヒコ}
}