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SLAC-PUB-17173
MCNET-17-20
arXiv:1711.03497
JHEP 1801 (2018) 118

by: Höche, Stefan (SLAC) et al.

Abstract:
We present a systematic study of differences between NLL resummation and parton showers. We first construct a Markovian Monte-Carlo algorithm for resummation of additive observables in electron-positron annihilation. Approximations intrinsic to the pure NLL result are then removed, in order to obtain a traditional, momentum and probability conserving parton shower based on the coherent branching formalism. The impact of each approximation is studied, and an overall comparison is made between the parton shower and pure NLL resummation. Differences compared to modern parton-shower algorithms formulated in terms of color dipoles are analyzed.
Link: 
http://inspirehep.net/record/1635297
Publ date: 
Friday, November 10, 2017 - 05:22