Electroproduction of vector mesons - factorization of end-point contributions
نویسنده
چکیده
The end-point contributions in the quark longitudinal momentum fraction of the virtual photon (γ) to vector meson (V ) impact factor to the diffractive electroproduction amplitude can be factorized in terms of a generalized parton evolution of the target parton distribution. The result is used to model the helicity amplitudes γp → V p in terms of small x generalized parton distributions. e-mail: [email protected]
منابع مشابه
Proof of factorization for electroproduction of multiple mesons and exclusive γ∗γ production of multiple hadrons
In the following, we will present a generalization of the proof of factorization for electroproduction of vector mesons to the production of several mesons such as π+π− and a proof of factorization for exclusive γγ production of several hadrons for example pp̄ or π+π− to all orders in perturbation theory up to power suppressed terms. PACS: 12.38.Bx, 13.85.Fb, 13.85.Ni
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