Abstract
The standard approaches for describing top quark production and its
decay dynamics are currently mostly either based on the narrow-width
(NW) limit or on off-shell fixed-order calculations. In this article we
present a factorised approach for boosted top quarks that combines the
properties of the NW limit and off-shell computations accounting for the
dominant off-shell effects in an expansion in mt/Q with the hard scatter-
ing scale Q. We discuss the key ideas of our approach and show some
preliminary results at tree-level.
decay dynamics are currently mostly either based on the narrow-width
(NW) limit or on off-shell fixed-order calculations. In this article we
present a factorised approach for boosted top quarks that combines the
properties of the NW limit and off-shell computations accounting for the
dominant off-shell effects in an expansion in mt/Q with the hard scatter-
ing scale Q. We discuss the key ideas of our approach and show some
preliminary results at tree-level.
| Original language | English |
|---|---|
| Title of host publication | Beyond the Narrow-Width Limit for Off-Shell and Boosted Differential Top Quark Decays |
| Publication status | Published - 11 Jan 2024 |
Austrian Fields of Science 2012
- 103012 High energy physics