/ Experiment-HEP arXiv:0803.2779

Measurement of the t anti-t production cross section in p anti-p collisions at s**(1/2) = 1.96-TeV

Published in: Phys.Rev.Lett.
Year: 2008
Vol.: 100
Page No: 192004
Pages: 7

Abstract: We measure the ttbar production cross section in ppbar collisions at sqrt{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_ttbar=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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