A new approach to color-coherent parton evolution
Abstract
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.
- Publication:
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arXiv e-prints
- Pub Date:
- August 2022
- DOI:
- 10.48550/arXiv.2208.06057
- arXiv:
- arXiv:2208.06057
- Bibcode:
- 2022arXiv220806057H
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 21 pages, 7 figures