$\gamma\gamma\to\pi^+\pi^-$ in the Modified Perturbative Approach

C. Vogt

$\gamma\gamma\to\pi^+\pi^-$ in the Modified Perturbative Approach

High Energy Physics - Phenomenology 2007-05-23 v2

Authors: C. Vogt

Abstract

We investigate the transverse momentum effects in $\gamma\gamma\to\pi^+\pi^-$ at moderately large total center of mass energy $\sqrt{s}$ in the modified perturbative approach. The calculation of the differential cross section using different approximations shows that the inclusion of $k_\perp$ in the quark and gluon propagators cannot lead to a considerable improvement of the theoretical prediction.

Keywords

transverse momentum gamma-gamma scattering pion pair production modified perturbative approach differential cross section

Cite

@article{arxiv.hep-ph/9911253,
  title  = {$\gamma\gamma\to\pi^+\pi^-$ in the Modified Perturbative Approach},
  author = {C. Vogt},
  journal= {arXiv preprint arXiv:hep-ph/9911253},
  year   = {2007}
}

Comments

6 pages, 3 figures, Talk given at the XVII Autumn School, ``QCD: Perturbative or Nonperturbative'', Lisbon, Portugal, 29. Sept. - 4. Oct. 1999, to appear in the proceedings. Missing figure added

$\gamma\gamma\to\pi^+\pi^-$ in the Modified Perturbative Approach

Abstract

Keywords

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