@Article{CDFCollaborationAaltonen_etal2010, author="CDF Collaboration (Aaltonen, T. et al and Cabrera, S. and Cuenca Almenar, C.", title="Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using soft electron b-tagging", journal="Physical Review D", year="2010", publisher="Amer Physical Soc", volume="81", number="9", pages="092002--18pp", abstract="We present a measurement of the top-quark pair-production cross section in p (p) over bar collisions at root s = 1.96 TeV using a data sample corresponding to 1.7 fb(-1) of integrated luminosity collected with the Collider Detector at Fermilab. We reconstruct t (t) over bar events in the lepton + jets channel, consisting of e nu + jets and $\mu$nu + jets final states. The dominant background is the production of W bosons in association with multiple jets. To suppress this background, we identify electrons from the semileptonic decay of heavy-flavor jets ({\textquoteleft}{\textquoteleft}soft electron tags{\textquoteright}{\textquoteright}). From a sample of 2196 candidate events, we obtain 120 tagged events with a background expectation of 51 +/- 3 events, corresponding to a cross section of sigma(t (t) over bar) = 7.8 +/- 2.4(stat) +/- 1.6(syst) +/- 0.5(lumi) pb. We assume a top-quark mass of 175 GeV/c(2). This is the first measurement of the t (t) over bar cross section with soft electron tags in run II of the Tevatron.", optnote="ISI:000278145100006", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=286), last updated on Mon, 21 Feb 2011 12:24:41 +0000", issn="1550-7998", doi="10.1103/PhysRevD.81.092002", opturl="http://arXiv.org/abs/1002.3783", opturl="https://doi.org/10.1103/PhysRevD.81.092002", language="English" }