Preprint/Report

PUBDB-2020-00858

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Evolution of parton showers and parton distribution functions

Nagy, Z. (Corresponding author)DESY* ; Soper, D. E. (Corresponding author)

2020

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Please use a persistent id in citations: doi:10.3204/PUBDB-2020-00858

Report No.: DESY-20-015; arXiv:2002.04125

Abstract: Initial state evolution in parton shower event generators involves parton distribution functions. We examine the probability for the system to evolve from a higher scale to a lower scale without an initial state splitting. A simple argument suggests that this probability, when multiplied by the ratio of the parton distributions at the two scales, should be independent of the parton distribution functions. We call this the PDF property. We examine whether the PDF property actually holds using Pythia and Deductor. We also test a related property for the Deductor shower and discuss the physics behind the results.

Keyword(s): parton: distribution function ; parton: showers ; initial state ; Monte Carlo ; splitting

Note: * Temporary entry *13 pages, 8 figures

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2020

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Database coverage:
; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Nagy, Z. (Corresponding author)DESY* ; Soper, D. E. (Corresponding author)
Evolution of parton showers and parton distribution functions
Physical review / D 102(1), 014025 (2020) [10.1103/PhysRevD.102.014025]2020     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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