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EKO: Evolution Kernel Operators

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arxiv 2202.02338 v2 pith:SFO55CZW submitted 2022-02-04 hep-ph

classification hep-ph
keywords evolutionoperatorsorderspaceagreementallowsappliedapproach
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We present a new QCD evolution library for unpolarized parton distribution functions: EKO. The program solves DGLAP equations up to next-to-next-to-leading order. The unique feature of EKO is the computation of solution operators, which are independent of the boundary condition, can be stored and quickly applied to evolve several initial PDFs. The EKO approach combines the power of $N$-space solutions with the flexibility of a $x$-space delivery, that allows for an easy interface with existing codes. The code is fully open source and written in Python, with a modular structure in order to facilitate usage, readability and possible extensions. We provide a set of benchmarks with similar available tools, finding good agreement.

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Forward citations

Cited by 9 Pith papers

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