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PUBDB-2016-00152

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Single and Double Perturbative Splitting Diagrams in Double Parton Scattering

Gaunt, J. R. ; Stirling, W. J.

2012
Deutsches Elektronen-Synchrotron, DESY Hamburg

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2012-03/30  doi:10.3204/DESY-PROC-2012-03/30

Report No.: DESY-PROC-2012-03; arXiv:1202.3056

Abstract: We discuss the role of two different types of diagram in the proton-proton double parton scattering (DPS) cross section - single and double perturbative splitting graphs. Using explicit calculations of simple graphs from these classes we show that the treatment of these graphs by the double PDF framework for describing the DPS cross section, introduced a number of years ago by Snigirev and collaborators, is unsatisfactory. We suggest that a contribution from single perturbative splitting graphs should be included in the DPS cross section, albeit with a different geometrical prefactor to the contribution from zero perturbative splitting graphs.

Keyword(s): parton: scattering ; splitting ; CERN LHC Coll

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 514 - Theoretical Particle Physics (POF2-514) (POF2-514)

Experiment(s):

1. No specific instrument

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Database coverage:

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Proceedings/Internal Report Plätzer, S. (Editor)DESY* ; Diehl, M. (Editor)DESY*
Proceedings, 3rd International Workshop on Multiple Partonic Interactions at the LHC (MPI@LHC 2011)
20123rd International Workshop on Multiple Partonic Interactions at the LHC, MPI@LHC 2011, HamburgHamburg, Germany, 21 Nov 2011 - 25 Nov 20112011-11-212011-11-25 Hamburg : Deutsches Elektronen-Synchrotron, DESY (2012) [10.3204/DESY-PROC-2012-03]2012     Files BibTeX | EndNote: XML, Text | RIS

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