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New approach to QCD final-state evolution in processes with massive partons

Assi, Benoît (ORCID:0000000309243335)·Höche, Stefan (ORCID:0000000213706059)
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Abstract

We present an algorithm for massive parton evolution which is based on the differentially accurate simulation of soft-gluon radiation by means of a nontrivial azimuthal angle dependence of the splitting functions. The kinematics mapping is chosen such as to reflect the symmetry of the final state in soft-gluon radiation and collinear splitting processes. We compute the counterterms needed for a fully differential next-to-leading order matching and discuss the analytic structure of the parton shower in the next-to-leading logarithmic limit. We implement the new algorithm in the numerical code Alaric and present a first comparison to experimental data. Published by the American Physical Society 2024

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Assi, Benoît (ORCID:0000000309243335), Höche, Stefan (ORCID:0000000213706059). 2024-06-07. New approach to QCD final-state evolution in processes with massive partons. https://doi.org/10.1103/physrevd.109.114008

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