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The European Physical Journal C

, Volume 44, Issue 4, pp 545–558 | Cite as

Double diffractive \(\rho\)-production in \(\gamma^*\gamma^*\) collisions

  • B. Pire
  • L. SzymanowskiEmail author
  • S. Wallon
Theoretical Physics

Abstract.

We present a first estimate of the cross-section for the exclusive process \(\gamma^{*}_{\mathrm {L}} (Q_1^2)\gamma^{*}_{\mathrm {L}}(Q_2^2) \to \rho_{\mathrm {L}}^0 \rho_{\mathrm {L}}^0\), which will be studied in the future high energy e + e--linear collider. As a first step, we calculate the Born order approximation of the amplitude for longitudinally polarized virtual photons and mesons, in the kinematical region \(s \gg -t, Q_1^2 , Q_2^2\). This process is completely calculable in the hard region \(Q_1^2, Q_2^2 \gg \Lambda^2_{\mathrm {{QCD}}}\). We perform most of the steps in an analytical way. The resulting cross-section turns out to be large enough for this process to be measurable with foreseen luminosity and energy, for Q12 and Q22 in the range of a few GeV2.

Keywords

Vector Meson Conformal Transformation Virtual Photon Linear Collider Asymptotical Curve 
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 Berlin/Heidelberg 2005

Authors and Affiliations

  1. 1.CPHT (Unité mixte C7644 du CNRS.)École PolytechniquePalaiseauFrance
  2. 2.Soltan Institute for Nuclear StudiesWarsawPoland
  3. 3.Université de LiégeLiégeBelgium
  4. 4.LPT (Unité mixte 8627 du CNRS.)Université Paris-SudOrsayFrance

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