Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV
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2008-05-16
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Amer Physical Soc
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We measure the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV in the lepton + jets channel. Two complementary methods discriminate between signal and background: b tagging and a kinematic likelihood discriminant. Based on 0.9 fb(-1) of data collected by the D0 detector at the Fermilab Tevatron Collider, we measure sigma(t (t) over bar) = 7.62 +/- 0.85 pb, assuming the current world average m(t) = 172.6 GeV. We compare our cross section measurement with theory predictions to determine a value for the top-quark mass of 170 +/- 7 GeV.
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Physical Review Letters. College Pk: Amer Physical Soc, v. 100, n. 19, p. 7, 2008.