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The Z Penguin in Generic Extensions of the Standard Model

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 نشر من قبل Joachim Brod
 تاريخ النشر 2019
  مجال البحث
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Precision flavour observables play an 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 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.



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