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Automation of Beam and Jet functions at NNLO

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arxiv 2110.04804 v2 pith:DRBVCRTL submitted 2021-10-10 hep-ph

Guido Bell , Kevin Brune , Goutam Das , Marcel Wald This is my paper
classification hep-ph
keywords functionsbeamnnloapproachautomationavailablebehaviourcalculation
verification ladder T0 review T1 audit T2 compute T3 formal
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We present a novel framework to streamline the calculation of jet and beam functions to next-to-next-to-leading order (NNLO) in perturbation theory. By exploiting the infrared behaviour of the collinear splitting functions, we factorise the singularities with suitable phase-space parametrisations and perform the observable-dependent integrations numerically. We have implemented our approach in the publicly available code {\tt pySecDec} and present first results for sample jet and beam functions.

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Cited by 1 Pith paper

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  1. Precision $e^+e^-$ Hemisphere Masses in the Dijet Region with Power Corrections

    hep-ph 2025-06 conditional novelty 8.0 of 10

    N3LL' resummation for heavy jet and dihemisphere masses in the dijet region, with a new claim that heavy jet mass moments require an extra non-perturbative parameter at order 1/Q.

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