Contribution to a conference proceedings/Internal Report

PUBDB-2015-04539

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Soft and hard pomerons

Landshoff, P. V.

1999
Deutsches Elektronen-Synchrotron, DESY Hamburg

Report No.: DAMTP-1999-90; hep-ph/9907392

Abstract: Regge theory provides an excellent description of small-$x$ structure-function data from $Q^2=0$ up to the highest available values. The large-$Q^2$ data should also be described by perturbative QCD: the two descriptions must agree in the region where they overlap. However, at present there is a serious lack in our understanding of how to apply perturbative QCD at small $x$. The usual lowest-order or next-to-lowest order expansion is not valid, at least not until $Q^2$ becomes much larger than is usually assumed; a resummation is necessary, but as yet we do not know how to do this resummation.

Keyword(s): talk: Tegernsee 1999/05/30 ; electron p: deep inelastic scattering ; p: structure function ; small-x ; Regge poles ; exchange: pomeron ; quantum chromodynamics: perturbation theory ; quark: charm ; photon p: exclusive reaction ; J/psi(3100): photoproduction ; numerical calculations ; interpretation of experiments: DESY HERA Stor

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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. No specific instrument

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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.
Proceedings, Ringberg Workshop on New Trends in HERA Physics 1999
1999Ringberg Workshop on New Trends in HERA Physics 1999, Ringberg CastleRingberg Castle, Germany, 30 May 1999 - 4 Jun 19991999-05-301999-06-04 Hamburg : Deutsches Elektronen-Synchrotron, DESY 460 pp. (1999)1999   BibTeX | EndNote: XML, Text | RIS

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