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A new approach to color-coherent parton evolution

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arxiv 2208.06057 v3 pith:5B3LGBC5 submitted 2022-08-11 hep-ph

A new approach to color-coherent parton evolution

classification hep-ph
keywords evolutionaccuracyaccuratealaricalgorithmanalyticanglesangular
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a simple parton-shower model that replaces the explicit angular ordering of the coherent branching formalism with a differentially accurate simulation of soft-gluon radiation by means of a non-trivial dependence on azimuthal angles. We introduce a global kinematics mapping and provide an analytic proof that it satisfies the criteria for next-to leading logarithmic accuracy. In the new algorithm, initial and final state evolution are treated on the same footing. We provide an implementation for final-state evolution in the numerical code Alaric and present a first comparison to experimental data.

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Forward citations

Cited by 13 Pith papers

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