We report evidence for s-channel single-top-quark production in proton-antiproton collisions at center-of-mass energy root s = 1.96 TeV using a data set that corresponds to an integrated luminosity of 9.4 fb(-1) collected by the Collider Detector at Fermilab. We select events consistent with the s-channel process including two jets and one leptonically decaying W boson. The observed significance is 3.8 standard deviations with respect to the background-only prediction. Assuming a top-quark mass of 172.5 GeV/c(2), we measure the s-channel cross section to be 1.41(-0.42)(+0.44) pb.

Evidence for s-Channel Single-Top-Quark Production in Events with One Charged Lepton and Two Jets at CDF

AMERIO, SILVIA;BUSETTO, GIOVANNI;LUCCHESI, DONATELLA;
2014

Abstract

We report evidence for s-channel single-top-quark production in proton-antiproton collisions at center-of-mass energy root s = 1.96 TeV using a data set that corresponds to an integrated luminosity of 9.4 fb(-1) collected by the Collider Detector at Fermilab. We select events consistent with the s-channel process including two jets and one leptonically decaying W boson. The observed significance is 3.8 standard deviations with respect to the background-only prediction. Assuming a top-quark mass of 172.5 GeV/c(2), we measure the s-channel cross section to be 1.41(-0.42)(+0.44) pb.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3120364
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