The Z Penguin in Generic Extensions of the Standard Model

Brod, Joachim and Gorbahn, Martin (2019) The Z Penguin in Generic Extensions of the Standard Model. The Journal of High Energy Physics, 1909 (9). 027-.

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Official URL: http://dx.doi.org/10.1007/JHEP09(2019)027

Abstract

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 of physical couplings.

Item Type:	Article
Additional Information:	28 pages, 1 figure
Uncontrolled Keywords:	hep-ph, hep-ph
Depositing User:	Symplectic Admin
Date Deposited:	17 Sep 2019 09:29
Last Modified:	19 Jan 2023 00:26
DOI:	10.1007/JHEP09(2019)027
Open Access URL:	https://doi.org/10.1007/JHEP09(2019)027
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3054936