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Measurement of the top quark mass using single top quark events in proton-proton collisions at $\sqrt{s}= 8$  TeV

dc.contributor.authorCMS collaboration (2230 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.accessioned2019-02-04T12:32:04Z
dc.date.available2019-02-04T12:32:04Z
dc.date.issued2017-05-29
dc.date.updated2019-02-04T12:32:04Z
dc.description.abstractA measurement of the top quark mass is reported in events containing a single top quark produced via the electroweak t channel. The analysis is performed using data from proton-proton collisions collected with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb$^{-1}$ . Top quark candidates are reconstructed from their decay to a $\mathrm {W}$ boson and a b quark, with the $\mathrm {W}$ boson decaying leptonically to a muon and a neutrino. The final state signature and kinematic properties of single top quark events in the t channel are used to enhance the purity of the sample, suppressing the contribution from top quark pair production. A fit to the invariant mass distribution of reconstructed top quark candidates yields a value of the top quark mass of $172.95 \pm 0.77\,\text {(stat)} ^{+0.97-0.93}\,\text {(syst)} \,\text {GeV} $ . This result is in agreement with the current world average, and represents the first measurement of the top quark mass in event topologies not dominated by top quark pair production, therefore contributing to future averages with partially uncorrelated systematic uncertainties and a largely uncorrelated statistical uncertainty.
dc.description.versionPeer Reviewed
dc.identifierEur.Phys.J. C77 (2017) 354 EPJC 77 (2017) 354; DOI 10.1140/epjc/s10052-017-4912-8
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-017-4912-8
dc.identifier.urihttp://hdl.handle.net/10400.26/27303
dc.language.isoeng
dc.titleMeasurement of the top quark mass using single top quark events in proton-proton collisions at $\sqrt{s}= 8$  TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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