The relation between the Good–Walker and triple-regge formalisms for diffractive excitation

In this Letter we analyze the relation between the triple-pomeron and Good–Walker formalisms for diffractive excitation in DIS and hadronic collisions. In both approaches gap events are interpreted as the shadow of absorption into inelastic channels. We here argue that the two formalisms are just di...

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Bibliographic Details
Published inPhysics letters. B Vol. 718; no. 3; pp. 1054 - 1057
Main Author Gustafson, Gösta
Format Journal Article
LanguageEnglish
Published Elsevier B.V 08.01.2013
Subjects
Diffraction
Fysik
Good Walker
Natural Sciences
Naturvetenskap
Physical Sciences
Pomeron
Subatomic Physics
Subatomär fysik
Triple-regge
Good–Walker
Diffraction
Triple-regge
Pomeron
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Summary:In this Letter we analyze the relation between the triple-pomeron and Good–Walker formalisms for diffractive excitation in DIS and hadronic collisions. In both approaches gap events are interpreted as the shadow of absorption into inelastic channels. We here argue that the two formalisms are just different views of the same phenomenon. We first demonstrate how this relation works in a simple toy model, and then show how the relevant features of the toy model are also realized in real perturbative QCD.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2012.11.061