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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