Why the angular distribution of the top decay lepton is unchanged by anomalous $tbW$ coupling

Abstract

We give a simple physical argument to understand the observation that the angular distribution of the top decay lepton depends only on the polarisation of the top and is independent of any anomalous $tbW$ coupling to linear order.

4 pages, 2 figures. Added a footnote and consequently a few references

References in corpus (2)

• Probing anomalous Wtb couplings in top pair decays
• Probing anomalous $Wtb$ couplings at the LHC in single top quark production through $t$-channel