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Search for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at $\sqrt s =$ 13 TeV

2017-09-10Journal article Open access
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dc.contributor.authorCMS collaboration (2235 authors)
dc.contributor.authorNayak, Aruna
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorBeirão Da Cruz E Silva, Cristóvão
dc.contributor.authorCalpas, Betty
dc.contributor.authorDi Francesco, Agostino
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorHollar, Jonathan
dc.contributor.authorLeonardo, Nuno
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSeixas, Joao
dc.contributor.authorToldaiev, Oleksii
dc.contributor.authorVadruccio, Daniele
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorSilva, Pedro
dc.contributor.authorMusella, Pasquale
dc.contributor.authorPela, Joao
dc.date.accessioned2019-02-04T12:15:23Z
dc.date.available2019-02-04T12:15:23Z
dc.date.issued2017-09-10
dc.date.updated2019-02-04T12:15:23Z
dc.description.abstractA search is presented for a heavy vector-like quark, decaying into a b quark and a W boson, which is produced singly in association with a light flavor quark and a b quark. The analysis is performed using a data sample of proton-proton collisions at a center-of-mass energy of sqrt(s) = 13 TeV collected at the LHC in 2015. The data set used in the analysis corresponds to an integrated luminosity of 2.3 inverse femtobarns. The search is carried out using events containing one electron or muon, at least one b-tagged jet with large transverse momentum, at least one jet in the forward region of the detector, and missing transverse momentum. No excess over the standard model prediction is observed. Upper limits are placed on the production cross section of heavy exotic quarks: a T quark with a charge of 2/3, and a Y quark with a charge of -4/3. For Y quarks with coupling of 0.5 and B(Y to bW) = 100%, the observed (expected) lower mass limits are 1.40 (1.0) TeV. This is the most stringent limit to date on the single production of the Y vector-like quark.
dc.description.versionPeer Reviewed
dc.identifierPhys.Lett. B772 (2017) 634-656 Phys. Lett. B 772 (2017) 634; DOI 10.1016/j.physletb.2017.07.022
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2017.07.022
dc.identifier.urihttp://hdl.handle.net/10400.26/27277
dc.language.isoeng
dc.titleSearch for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at $\sqrt s =$ 13 TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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