Article ID Journal Published Year Pages File Type
1845071 Nuclear Physics B - Proceedings Supplements 2008 4 Pages PDF
Abstract

We study the exclusive production of ππ and ρπ in hard γ⋆γ scattering in the forward kinematical region where the virtuality of one photon provides us with a hard scale in the process. The newly introduced concept of Transition Distribution Amplitudes (TDA) is used to perform a QCD calculation of these reactions thanks to two simple models for TDAs. The sizable cross sections for ρπ and ππ production may be tested at intense electron-positron colliders such as CLEO and B factories (Belle and BaBar).

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics