| Description |
In this talk I will discuss top-quark polarisation as a probe to study BSM physics at the colliders. As an example I will discuss how top polarisation can provide discrimination, both at the Tevatron and at the LHC, among the different BSM explanations for the forward backward top asymmetry observed at the Tevatron. I will mention briefly other probes for distinguishing among these at the Tevatron and the LHC. |