Exclusive electroproduction of rho^0 mesons has been measured using the ZEUS detector at HERA in two Q^2 ranges, 0.25<Q^2<0.85 GeV^2 and 3<Q^2<30 GeV^2. The low-Q^2 data span the range 20<W<90 GeV; the high-Q^2 data cover the 40<W<120 GeV interval. Both samples extend up to four-momentum transfers of |t|=0.6 GeV^2. The distribution in the azimuthal angle between the positron scattering plane and the rho^0 production plane shows a small but significant violation of s-channel helicity conservation, corresponding to the production of longitudinally polarised (i.e. helicity zero) rho^0 mesons from transverse photons. Measurements of the 15 combinations of spin-density matrix elements which completely define the angular distributions are present...
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho (0) electr...
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho^0 electrop...
Exclusive electroproduction of ω mesons on unpolarized hydrogen and deuterium targets is studied in ...
Exclusive electroproduction of rho^0 mesons has been measured using the ZEUS detector at HERA in two...
Exclusive electroproduction of rho(o) mesons has been measured using the ZEUS detector at HERA in tw...
Exclusive electroproduction of rho(o) mesons has been measured using the ZEUS detector at HERA in tw...
Exclusive electroproduction of ρ0 mesons has been measured using the ZEUS detector at HERA in two Q2...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
The exclusive electroproduction of rho-0 mesons was studied with the HERMES spectrometer at the DESY...
Exclusive production of $\rho^0$ and $J/\psi$ mesons in e^+ p collisions has been studied with the Z...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
Exclusive production of rho(0) and J/psi mesons in e(+)p collisions has been studied with the ZEUS d...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
Exclusive production of #rho#"0 and J/#psi# mesons in e"+p collisions has been studied wit...
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho (0) electr...
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho^0 electrop...
Exclusive electroproduction of ω mesons on unpolarized hydrogen and deuterium targets is studied in ...
Exclusive electroproduction of rho^0 mesons has been measured using the ZEUS detector at HERA in two...
Exclusive electroproduction of rho(o) mesons has been measured using the ZEUS detector at HERA in tw...
Exclusive electroproduction of rho(o) mesons has been measured using the ZEUS detector at HERA in tw...
Exclusive electroproduction of ρ0 mesons has been measured using the ZEUS detector at HERA in two Q2...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
The exclusive electroproduction of rho-0 mesons was studied with the HERMES spectrometer at the DESY...
Exclusive production of $\rho^0$ and $J/\psi$ mesons in e^+ p collisions has been studied with the Z...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
Exclusive production of rho(0) and J/psi mesons in e(+)p collisions has been studied with the ZEUS d...
Production and decay angular distributions were extracted from measurements of exclusive electroprod...
Exclusive production of #rho#"0 and J/#psi# mesons in e"+p collisions has been studied wit...
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho (0) electr...
Spin Density Matrix Elements (SDMEs) describing the angular distribution of exclusive rho^0 electrop...
Exclusive electroproduction of ω mesons on unpolarized hydrogen and deuterium targets is studied in ...