Vector meson production from a polarized nucleon

Abstract

We provide a framework to analyze the electroproduction process ep -> ep rho with a polarized target, writing the angular distribution of the rho decay products in terms of spin density matrix elements that parameterize the hadronic subprocess gamma* p -> rho p. 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.

31 pages, 2 figures. v2: added section on non-resonant contributions

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Cited by in corpus (13)

• The role of the quark and gluon GPDs in hard vector-meson electroproduction
• The target asymmetry in hard vector-meson electroproduction and parton angular momenta
• Spin Density Matrix Elements in Exclusive rho^0 Electroproduction on 1H and 2H Targets at 27.5 GeV Beam Energy
• The pion pole in hard exclusive vector-meson leptoproduction
• Exclusive rho-0 electroproduction on transversely polarized protons
• Electroproduction of $\varphi (1020)$ mesons at $1.4\le Q^2\le$ GeV${}^2$ measured with the CLAS spectrometer
• Ratios of Helicity Amplitudes for Exclusive rho-0 Electroproduction
• Exclusive rho^0 muoproduction on transversely polarised protons and deuterons
• Exclusive neutrino-production of a charmed vector meson and transversity gluon GPDs
• Ratios of helicity amplitudes for exclusive ${\rho }^0$ electroproduction on transversely polarized protons
• Extracting transition generalized parton distributions from hard exclusive pion-nucleon scattering
• Spin Density Matrix Elements in Exclusive $\omega$ Meson Muoproduction ${}^{\ast }$
• Study of the Transverse-Momentum-Dependent structure of the nucleon in Semi-Inclusive DIS