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SLAC-PUB-16965
FERMILAB-PUB-17-134-T
IPPP-17-34
DCPT-17-68
MCNET-17-06
arXiv:1705.00982
JHEP 1710 (2017) 093

by: Höche, Stefan (SLAC) et al.

Abstract:
We present a parton shower which implements the DGLAP evolution of parton densities and fragmentation functions at next-to-leading order precision up to effects stemming from local four-momentum conservation. The Monte-Carlo simulation is based on including next-to-leading order collinear splitting functions in an existing parton shower and combining their soft enhanced contributions with the corresponding terms at leading order. Soft double counting is avoided by matching to the soft eikonal. Example results from two independent realizations of the algorithm, implemented in the two event generation frameworks Pythia and Sherpa, illustrate the improved precision of the new formalism.
Link: 
http://inspirehep.net/record/1597584
Publ date: 
Wednesday, May 3, 2017 - 05:17