The top quark width constrains from the single top quark production channel.

Top quark production near threshold and the top quark mass

We consider top-anti-top production near threshold in e+e− collisions, resumming Coulomb-enhanced corrections at next-to-next-to-leading order (NNLO). We also sum potentially large logarithms of the small top quark velocity at the next-toleading logarithmic level using the renormalization group. The NNLO correction to the cross section is large, and it leads to a significant modification of the...

Measurement of the Single Top Quark Production

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Comprehensive measurements of t-channel single top-quark production

This article presents measurements of the t-channel single top-quark (t) and top-antiquark (t̄) total production cross sections σðtqÞ and σðt̄qÞ, their ratio Rt 1⁄4 σðtqÞ=σðt̄qÞ, and a measurement of the inclusive production cross section σðtqþ t̄qÞ in proton-proton collisions at ffiffi s p 1⁄4 7 TeV at the LHC. Differential cross sections for the tq and t̄q processes are measured as a function of t...

Infrared Corrections to the Top Quark Width

We present a nonperturbative analysis of the top quark propagator using the Schwinger Dyson equation in the ladder approximation including both the electroweak as well as the infrared QCD effects. We find that the infrared effects are negligible only for top mass larger than about 250 GeV. Presented at the DPF92 meeting, Fermilab, Chicago, Nov. 10-14, 1992

Top Quark Production