Publication
Search for pair production of heavy vector-like quarks decaying into high-$p_T$ $W$ bosons and top quarks in the lepton-plus-jets final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
| dc.contributor.author | ATLAS collaboration (2918 authors) | |
| dc.contributor.author | Aguilar Saavedra, Juan Antonio | |
| dc.contributor.author | Amor Dos Santos, Susana Patricia | |
| dc.contributor.author | Araque Espinosa, Juan Pedro | |
| dc.contributor.author | Castro, Nuno Filipe | |
| dc.contributor.author | Conde Muino, Patricia | |
| dc.contributor.author | Da Cunha Sargedas De Sousa, Mario Jose | |
| dc.contributor.author | Dias do vale, Tiago | |
| dc.contributor.author | Faisca Rodrigues Pereira, Rui Miguel | |
| dc.contributor.author | Fiolhais, Miguel | |
| dc.contributor.author | Galhardo, Bruno | |
| dc.contributor.author | Gomes, Agostinho | |
| dc.contributor.author | Goncalo, Ricardo | |
| dc.contributor.author | Jorge, Pedro | |
| dc.contributor.author | Machado Miguens, Joana | |
| dc.contributor.author | Maio, Amelia | |
| dc.contributor.author | Maneira, Jose | |
| dc.contributor.author | Mendes Gouveia, Emanuel Demetrio | |
| dc.contributor.author | Oleiro Seabra, Luis Filipe | |
| dc.contributor.author | Onofre, Antonio | |
| dc.contributor.author | Costa Batalha Pedro, Rute | |
| dc.contributor.author | Pereira Peixoto, Ana Paula | |
| dc.contributor.author | Santos, Helena | |
| dc.contributor.author | Saraiva, Joao | |
| dc.contributor.author | Silva, Jose Manuel | |
| dc.contributor.author | Tavares Delgado, Ademar | |
| dc.contributor.author | Veloso, Filipe | |
| dc.contributor.author | Wolters, Helmut | |
| dc.date.accessioned | 2019-02-05T16:31:03Z | |
| dc.date.available | 2019-02-05T16:31:03Z | |
| dc.date.issued | 2018-08-10 | |
| dc.date.updated | 2019-02-05T16:31:03Z | |
| dc.description.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 $ \sqrt{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. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | JHEP 1808 (2018) 048 JHEP 08 (2018) 048; DOI 10.1007/JHEP08(2018)048 | |
| dc.identifier.uri | http://dx.doi.org/10.1007/JHEP08(2018)048 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/27659 | |
| dc.language.iso | eng | |
| dc.title | Search for pair production of heavy vector-like quarks decaying into high-$p_T$ $W$ bosons and top quarks in the lepton-plus-jets final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |