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$γγ\toπ^+π^-$ in the Modified Perturbative Approach

C. Vogt
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Abstract

We investigate the transverse momentum effects in $γγ\toπ^+π^-$ 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.

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C. Vogt. 1999-11-08. $γγ\toπ^+π^-$ in the Modified Perturbative Approach. https://arxiv.org/abs/hep-ph/9911253

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