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 172.5GeV/c2 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. © 2014 American Physical Society.
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1103/PhysRevLett.112.231805|
|Codice identificativo ISI:||WOS:000336981200006|
|Codice identificativo Scopus:||2-s2.0-84902334842|
|Titolo:||Search for s -channel single-top-quark production in events with missing energy plus jets in p p ̄ collisions at s =1.96TeV|
|Appare nelle tipologie:||1.1 Articolo in rivista|