The midpoint between dipole and parton showers

Stefan Höche; Stefan Prestel

doi:10.1140/epjc/s10052-015-3684-2

The midpoint between dipole and parton showers

Stefan Höche, Stefan Prestel

Stanford Linear Accelerator Center (SLAC)

Research output: Contribution to journal › Article › peer-review

Abstract

We present a new parton-shower algorithm. Borrowing from the basic ideas of dipole cascades, the evolution variable is judiciously chosen as the transverse momentum in the soft limit. This leads to a very simple analytic structure of the evolution. A weighting algorithm is implemented that allows one to consistently treat potentially negative values of the splitting functions and the parton distributions. We provide two independent, publicly available implementations for the two event generators Pythia and Sherpa.

Original language	English
Article number	461
Number of pages	18
Journal	European Physical Journal C
Volume	75
Issue number	9
DOIs	https://doi.org/10.1140/epjc/s10052-015-3684-2
Publication status	Published - 2015 Sept 1
Externally published	Yes

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjc/s10052-015-3684-2

Cite this

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AB - We present a new parton-shower algorithm. Borrowing from the basic ideas of dipole cascades, the evolution variable is judiciously chosen as the transverse momentum in the soft limit. This leads to a very simple analytic structure of the evolution. A weighting algorithm is implemented that allows one to consistently treat potentially negative values of the splitting functions and the parton distributions. We provide two independent, publicly available implementations for the two event generators Pythia and Sherpa.

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The midpoint between dipole and parton showers

Abstract

Subject classification (UKÄ)

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