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arXiv · 2206.00745

NPointFunctions: a calculator of amplitudes and observables in FlexibleSUSY

Uladzimir Khasianevich·Wojciech Kotlarski·Dominik Stöckinger
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Abstract

We present $\texttt{NPointFunctions}$, a package to incorporate desired amplitudes and observables for an arbitrary BSM model in $\texttt{FlexibleSUSY}$. The package relies on the $\texttt{SARAH}$-generated output used with $\texttt{FeynArts}/\texttt{FormCalc}$, embedded in an appropriate way, thus allowing calculations up to one-loop level. The resulting tool is an extension to $\texttt{FlexibleSUSY}$, a generator of spectrum generator programs. $\texttt{NPointFunctions}$ was designed to be customizable, modular and extensible with additional process- or amplitude- dependent contributions. We explain, how these goals are achieved, and discuss modifications to the default $\texttt{FlexibleSUSY}$ workflow.

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Uladzimir Khasianevich, Wojciech Kotlarski, Dominik Stöckinger. 2022-06-01. NPointFunctions: a calculator of amplitudes and observables in FlexibleSUSY. https://arxiv.org/abs/2206.00745

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