Top quark production in extended BESS model

Top Quark Production

Top Quark Production Dynamics

The discovery of the top quark by the CDF and D0 collaborations at the Fermilab Tevatron in 19951 completed, (together with the discovery2 of the τ -neutrino by the DONUT collaboration, also at Fermilab) the matter sector of the Standard Model. However, due its unique properties, the importance of the top quark discovery far exceeds completing a particle table. First, its large mass, close to t...

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...

Top quark signatures in extended color theories.

We consider the implications of an extended color group, SU (3) I × SU (3) II , spontaneously broken to SU (3) c at a TeV or lower scale, for the hadronic colliders. The associated massive color octet gauge bosons (the colorons) can enhance the tt pair production at the Tevatron collider. At the LHC, the colorons can be pair produced, each decaying to a tt pair. This gives rise to anomalous mul...

Top-quark Production and QCD

We review theoretical calculations for top-quark production that include complete next-to-leading-order QCD corrections as well as higher-order soft-gluon corrections from threshold resummation. We discuss in detail the differences between various approaches that have appeared in the literature and review results for top-quark total cross sections and differential distributions at the Tevatron ...