Measurement of the ttbar production cross section in ppbar collisions at sqrt{s} = 1.96 TeV

Details Measurement of the ttbar production cross section in ppbar collisions at sqrt{s} = 1.96 TeV Measurement of the ttbar production cross section in ppbar collisions at sqrt{s} = 1.96 TeV

2008-03-19

arxiv.org/abs/0803.2779v1

Phys.Rev.Lett.100:192004,2008

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 3 figures, 5 tables, submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.100.192004

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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