Journal Article/Internal Report

PUBDB-2015-04381

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Soft gluons and superleading logarithms in QCD

Forshaw, J. R. ; Seymour, M. H.

2009
Elsevier Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.nuclphysbps.2009.03.133

Report No.: CERN-TH-2009-012; MAN-HEP-2009-3; arXiv:0901.3037

Abstract: After a brief introduction to the physics of soft gluons in QCD we present a surprising prediction. Dijet production in hadron-hadron collisions provides the paradigm, i.e. h_1 +h_2 \to jj+X. In particular, we look at the case where there is a restriction placed on the emission of any further jets in the region in between the primary (highest p_T) dijets. Logarithms in the ratio of the jet scale to the veto scale can be summed to all orders in the strong coupling. Surprisingly, factorization of collinear emissions fails at scales above the veto scale and triggers the appearance of double logarithms in the hard sub-process. The effect appears first at fourth order relative to the leading order prediction and is subleading in the number of colours.

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Contributing Institute(s):

1. Bibliothek und Dokumentation (L)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. Facility (machine) HERA

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Database coverage:
Nationallizenz ; SCOPUS ; Thomson Reuters Master Journal List

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Proceedings/Book Grindhammer, G. ; Kniehl, B. A. ; Kramer, G. ; Ochs, W.
HERA 2008, proceedings of the Ringberg Workshop New Trends in HERA Physics 2008, Ringberg Castle, Tegernsee, Germany, 5-10 October 2008
2009Ringberg Workshop on New Trends in HERA Physics 2008, Ringberg CastleRingberg Castle, Germany, 5 Oct 2008 - 10 Oct 20082008-10-052008-10-10 Hamburg : Deutsches Elektronen-Synchrotron, DESY 332 pp. (2009)2009   BibTeX | EndNote: XML, Text | RIS

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