The Z penguin in generic extensions of the Standard Model

The Z penguin in generic extensions of the Standard Model

Blog Article

Abstract Precision flavour observables play an Soaps important role in the interpretation of results at the LHC in terms of models of new physics.We present the result for the one-loop Z penguin in generic extensions of the standard model which exhibit exact perturbative unitarity.We Goldenrod use Slavnov-Taylor identities to study the implications of unitarity on the renormalisation of the Z penguin, and derive a manifestly finite result that depends on a reduced set of physical couplings.