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Gösta Gustafson. Photo.

Gösta Gustafson

Post retirement professor

Gösta Gustafson. Photo.

Elastic and quasi-elastic pp and gamma * p scattering in the dipole model

Author

  • Christoffer Flensburg
  • Gösta Gustafson
  • Leif Lönnblad

Summary, in English

We have in earlier papers presented an extension of Mueller's dipole cascade model, which includes subleading effects from energy conservation and running coupling as well as color-suppressed saturation effects from pomeron loops via a "dipole swing". The model was applied to the description of the total and diffractive cross sections in pp and gamma * p collisions, and also the elastic cross section in pp scattering. In this paper we extend the model to the description of the corresponding quasi-elastic cross sections in gamma * p, namely the exclusive production of vector mesons and deeply virtual Compton scattering. Also for these reactions we find good agreement with measured cross sections. In addition, we obtain a reasonable description of the t-dependence of the elastic pp and quasi-elastic. gamma * p cross sections.

Department/s

  • Theoretical Particle Physics

Publishing year

2009

Language

English

Pages

233-247

Publication/Series

European Physical Journal C. Particles and Fields

Volume

60

Issue

2

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044