Exclusive hadronization in gamma* gamma -> pi pi
classification
✦ hep-ph
keywords
gammaamplitudeexclusivehadronichadronizationtwo-mesonanalysiscollisions
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We perform a QCD analysis of exclusive two-meson production in gamma* gamma collisions in the kinematical domain of large photon virtuality Q^2 and small hadronic invariant mass W^2. In these kinematics the amplitude factorizes into a perturbative subprocess gamma* gamma -> q qbar and a two-meson distribution amplitude. This opens the way to study new hadronic matrix elements related with the physics of hadronization and confinement.
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