PROBING TRANSVERSITY IN ELECTROPRODUCTION OF TWO VECTOR MESONS

Ivanov D. Yu., Pire B., Szymanowski L., Teryaev O. V.

Electroproduction of two vector mesons with a large rapidity gap between them provides the first feasible selective access to chiral-odd GPDs [1]. The scattering amplitude of the process g*N -> rL0 rT+ N' may be represented as a convolution of an impact factor describing the g* -> rL0 transition and an amplitude describing the N -> rT+ N' transition, analogously to deeply exclusive electroproduction of a meson, the virtual photon being replaced by a Pomeron. The production of a transversely polarized vector meson rT+ selects a chiral-odd GPD in the proton.

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