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γγπ+π- in the Modified Perturbative Approach

C. Vogt

hep-pharXiv:hep-ph/9911253

Abstract

We investigate the transverse momentum effects in γγπ+π- at moderately large total center of mass energy s in the modified perturbative approach. The calculation of the differential cross section using different approximations shows that the inclusion of k in the quark and gluon propagators cannot lead to a considerable improvement of the theoretical prediction.

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