BFKL resummation effects in gamma^* gamma^* --> rho rho - Archive ouverte HAL
Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2006

BFKL resummation effects in gamma^* gamma^* --> rho rho

R. Enberg
  • Fonction : Auteur
L. Szymanowski
  • Fonction : Auteur

Résumé

We calculate the leading order BFKL amplitude for the exclusive diffractive process $\gamma^*_L (Q_1^2) \gamma^*_L(Q_2^2) \to \rho_L^0 \rho_L^0$ 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 at the leading order.

Dates et versions

hal-00013431 , version 1 (08-11-2005)

Identifiants

Citer

R. Enberg, B. Pire, L. Szymanowski, S. Wallon. BFKL resummation effects in gamma^* gamma^* --> rho rho. European Physical Journal C: Particles and Fields, 2006, 45, pp.759-769. ⟨hal-00013431⟩
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