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Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying $W$ bosons

2012-02Journal article Open access
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dc.contributor.authorATLAS collaboration (3040 authors)
dc.contributor.authorAguilar-Saavedra, Juan Antonio
dc.contributor.authorAmaral, Pedro
dc.contributor.authorAnjos, Nuno
dc.contributor.authorCarvalho, João
dc.contributor.authorCastro, Nuno Filipe
dc.contributor.authorConde Muiño, Patricia
dc.contributor.authorDo Valle Wemans, André
dc.contributor.authorFiolhais, Miguel
dc.contributor.authorGomes, Agostinho
dc.contributor.authorGonçalo, Ricardo
dc.contributor.authorJorge, Pedro
dc.contributor.authorLopes, Lourenco
dc.contributor.authorMachado Miguens, Joana
dc.contributor.authorMaio, Amélia
dc.contributor.authorManeira, José
dc.contributor.authorOliveira, Miguel Alfonso
dc.contributor.authorOnofre, António
dc.contributor.authorPalma, Alberto
dc.contributor.authorPina, João Antonio
dc.contributor.authorPinto, Belmiro
dc.contributor.authorSantos, Helena
dc.contributor.authorSaraiva, João
dc.contributor.authorSilva, José
dc.contributor.authorSoares, Mara
dc.contributor.authorVeloso, Filipe
dc.contributor.authorWolters, Helmut
dc.date.accessioned2019-02-03T19:07:07Z
dc.date.available2019-02-03T19:07:07Z
dc.date.issued2012-02
dc.date.updated2019-02-03T19:07:07Z
dc.description.abstractThis Letter presents a search for pair production of heavy down-type quarks decaying via b'->Wt in the lepton + jets channel, as b'b'->WtWt->bbWWWW->lvbbqqqqqq. In addition to requiring exactly one lepton, large missing transverse momentum and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04 fb^-1 from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480 GeV is excluded at the 95% confidence level.
dc.description.versionPeer Reviewed
dc.identifierPhys.Rev.Lett. 109 (2012) 032001; DOI 10.1103/PhysRevLett.109.032001
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.109.032001
dc.identifier.urihttp://hdl.handle.net/10400.26/26115
dc.language.isoeng
dc.titleSearch for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying $W$ bosons
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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