The first search for single-top-quark production from the exchange of an s-channel virtual W boson using events with an imbalance in the total transverse energy, b-tagged jets, and no identified leptons is presented. Assuming the electroweak production of top quarks of mass 172.5 GeV/c(2) in the s channel, a cross section of 1.12(-0.57)(+0.61) (stat + syst) pb with a significance of 1.9 standard deviations is measured. This measurement is combined with the result obtained from events with an imbalance in total transverse momentum, b-tagged jets, and exactly one identified lepton, yielding a cross section of 1.36(-0.32)(+0.37) (stat + syst) pb, with a significance of 4.2 standard deviations.
|Titolo:||Search for s-Channel Single-Top-Quark Production in Events with Missing Energy Plus Jets in p(p)over-bar Collisions at root s=1.96 TeV|
|Data di pubblicazione:||2014|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1103/PhysRevLett.112.231805|
|Appare nelle tipologie:||1.1 Articolo in rivista|