Competing Sudakov veto algorithms

Ronald Kleiss, Rob Verheyen
2016 European Physical Journal C: Particles and Fields  
We present a way to analyze the distribution produced by a Monte Carlo algorithm. We perform these analyses on several versions of the Sudakov veto algorithm, adding a cutoff, a second variable and competition between emission channels. The analysis allows us to prove that multiple, seemingly different competition algorithms, including those that are currently implemented in most parton showers, lead to the same result. Finally, we test their performance and show that there are significantly
more » ... re significantly faster alternatives to the commonly used algorithms.
doi:10.1140/epjc/s10052-016-4231-5 fatcat:i4zifagau5gudaudyskyoztu7e