Measurement of the ttbar Production Cross Section with an in situ Calibration of b-jet Identification Efficiency

Abstract

A measurement of the top-quark pair-production cross section in ppbar collisions at sqrt{s}=1.96 TeV using data corresponding to an integrated luminosity of 1.12/fb collected with the Collider Detector at Fermilab is presented. Decays of top-quark pairs into the final states e nu + jets and mu nu + jets are selected, and the cross section and the b-jet identification efficiency are determined using a new measurement technique which requires that the measured cross sections with exactly one and multiple identified b-quarks from the top-quark decays agree. Assuming a top-quark mass of 175 GeV/c^2, a cross section of 8.5+/-0.6(stat.)+/-0.7(syst.) pb is measured.

To be submitted to Phys.Lett.B

References in corpus (4)

• Theoretical status and prospects for top-quark pair production at hadron colliders
• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
• The theoretical top quark cross section at the Tevatron and the LHC
• Search for the supersymmetric partner of the top quark in ppbar collisions at sqrt(s) = 1.96 TeV

Cited by in corpus (7)

• Next-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution
• Combination of the top-quark mass measurements from the Tevatron collider
• The top quark rapidity distribution and forward-backward asymmetry
• Probing chromomagnetic and chromoelectric couplings of the top quark using its polarization in pair production at hadron colliders
• Massive Spin-2 States as the Origin of the Top Quark Forward-Backward Asymmetry
• Explaining the ttbar Forward-Backward Asymmetry from a GUT-Inspired Model
• Constraining Unparticles from Top Physics at TeVatron