Bewick, Gavin and Ravasio, Silvia Ferrario and Richardson, Peter and Seymour, Michael H. (2020) 'Logarithmic accuracy of angular-ordered parton showers.', Journal of high energy physics., 2020 (4). 019.
We study the logarithmic accuracy of angular-ordered parton showers by considering the singular limits of multiple emission matrix elements. This allows us to consider different choices for the evolution variable and propose a new choice which has both the correct logarithmic behaviour and improved performance away from the singular regions. In particular the description of e+e− event shapes in the non-logarithmic region is significantly improved.
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|Publisher Web site:||https://doi.org/10.1007/JHEP04(2020)019|
|Publisher statement:||This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.|
|Date accepted:||18 March 2020|
|Date deposited:||23 April 2020|
|Date of first online publication:||03 April 2020|
|Date first made open access:||23 April 2020|
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