Vector meson production from a polarized nucleon
نویسنده
چکیده
We provide a framework to analyze the electroproduction process ep → epρ with a polarized target, writing the angular distribution of the ρ decay products in terms of spin density matrix elements that parameterize the hadronic subprocess γ∗p → ρp. Using the helicity basis for both photon and meson, we find a representation in which the expressions for a polarized and unpolarized target are related by simple substitution rules.
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تاریخ انتشار 2008