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BFKL resummation effects in γ*γ* → ρρ

  • R. EnbergEmail author
  • B. Pire
  • L. Szymanowski
  • S. Wallon
Theoretical Physics

Abstract.

We calculate the leading order BFKL amplitude for the exclusive diffractive process \(\gamma^*_{\mathrm{L}} (Q_1^2)\gamma^*_{\mathrm{L}}(Q_2^2) \to \rho_{\mathrm{L}}^0 \rho_{\mathrm{L}}^0\) in the forward direction, which can be studied in future high energy e + e - linear colliders. The resummation effects are very large compared to the fixed-order calculation. We also estimate the next-to-leading logarithmic corrections to the amplitude by using a specific resummation of higher order effects and find a substantial growth with energy, but smaller than in the leading logarithmic approximation.

Keywords

Field Theory Elementary Particle Quantum Field Theory Substantial Growth Order Effect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • R. Enberg
    • 1
    • 2
    Email author
  • B. Pire
    • 1
  • L. Szymanowski
    • 3
    • 4
  • S. Wallon
    • 5
  1. 1.CPHTÉcole PolytechniquePalaiseauFrance
  2. 2.Lawrence Berkeley National LaboratoryBerkeleyUSA
  3. 3.Sołtan Institute for Nuclear StudiesWarsawPoland
  4. 4.Université de LiégeLiégeBelgium
  5. 5.Université Paris-SudLPTOrsayFrance

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