Abstract
I discuss the state-of-the-art knowledge of long-distance singularities in multi-leg gauge-theory scattering amplitudes and report on an on-going calculation of the three-loop soft anomalous dimension through the renormalization of correlators of semi-infinite Wilson lines. I also discuss the non-Abelian exponentiation theorem that has been recently generalised to multiple Wilson lines and demonstrate its application in computing the soft anomalous dimension. Finally, I present recent results for multiple-gluon-exchange webs and discuss their analytic structure.
| Original language | English |
|---|---|
| Pages (from-to) | 1-16 |
| Number of pages | 16 |
| Journal | Proceedings of Science |
| Volume | LL2014 |
| Issue number | 069 |
| Publication status | Published - 19 Jul 2014 |
| Event | LL2014 - Weimar, Germany Duration: 27 Apr 2014 → 2 May 2014 |
Keywords / Materials (for Non-textual outputs)
- hep-ph
- hep-th