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Title: Triple collinear emissions in parton showers

A framework to include triple collinear splitting functions into parton showers is presented, and the implementation of flavor-changing NLO splitting kernels is discussed as a first application. The correspondence between the Monte-Carlo integration and the analytic computation of NLO DGLAP evolution kernels is made explicit for both timelike and spacelike parton evolution. Numerical simulation results are obtained with two independent implementations of the new algorithm, using the two independent event generation frameworks Pythia and Sherpa.
Authors:
;
Publication Date:
Report Number(s):
SLAC-PUB-16963; FERMILAB-PUB-17-122-T; MCNET-17-05; arXiv:1705.00742
Journal ID: ISSN 2470-0010; PRVDAQ; 1597573
Grant/Contract Number:
AC02-07CH11359; AC02-76SF00515; AC02–76SF00515; AC02–07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1407137
Alternate Identifier(s):
OSTI ID: 1358104; OSTI ID: 1399809

Höche, Stefan, and Prestel, Stefan. Triple collinear emissions in parton showers. United States: N. p., Web. doi:10.1103/PhysRevD.96.074017.
Höche, Stefan, & Prestel, Stefan. Triple collinear emissions in parton showers. United States. doi:10.1103/PhysRevD.96.074017.
Höche, Stefan, and Prestel, Stefan. 2017. "Triple collinear emissions in parton showers". United States. doi:10.1103/PhysRevD.96.074017. https://www.osti.gov/servlets/purl/1407137.
@article{osti_1407137,
title = {Triple collinear emissions in parton showers},
author = {Höche, Stefan and Prestel, Stefan},
abstractNote = {A framework to include triple collinear splitting functions into parton showers is presented, and the implementation of flavor-changing NLO splitting kernels is discussed as a first application. The correspondence between the Monte-Carlo integration and the analytic computation of NLO DGLAP evolution kernels is made explicit for both timelike and spacelike parton evolution. Numerical simulation results are obtained with two independent implementations of the new algorithm, using the two independent event generation frameworks Pythia and Sherpa.},
doi = {10.1103/PhysRevD.96.074017},
journal = {Physical Review D},
number = 7,
volume = 96,
place = {United States},
year = {2017},
month = {10}
}