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Evidence for associated production of a single top quark and W boson in $pp$ collisions at $\sqrt{s}$ = 7 TeV

2013-01-11Journal article Open access
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dc.contributor.authorCMS collaboration (2197 authors)
dc.contributor.authorHollar, Jonathan
dc.contributor.authorNayak, Aruna
dc.contributor.authorAlmeida, Nuno
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorSeixas, Joao
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorMusella, Pasquale
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSilva, Pedro
dc.contributor.authorPela, Joao
dc.contributor.authorLeonardo, Nuno
dc.date.accessioned2019-02-03T21:05:46Z
dc.date.available2019-02-03T21:05:46Z
dc.date.issued2013-01-11
dc.date.updated2019-02-03T21:05:46Z
dc.description.abstractEvidence is presented for the associated production of a single top quark and W boson in pp collisions at √s=7  TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 4.9  fb$^{-1}$. The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the $t\bar{t}$ background from the signal. The observed signal has a significance of 4.0σ and corresponds to a cross section of 16$_{-4}^{+5}$  pb, in agreement with the standard model expectation of 15.6±0.4$_{-1.2}^{+1.0}$  pb.
dc.description.versionPeer Reviewed
dc.identifierPhys.Rev.Lett. 110 (2013) 022003; DOI 10.1103/PhysRevLett.110.022003
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.110.022003
dc.identifier.urihttp://hdl.handle.net/10400.26/26269
dc.language.isoeng
dc.titleEvidence for associated production of a single top quark and W boson in $pp$ collisions at $\sqrt{s}$ = 7 TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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