************************************************************** * * Paper : Diffractive Electroproduction of rho and phi Mesons * at HERA, DESY 09-093 * Reac : GAMMA* P --> RHO0 P(or Y) , GAMMA* P --> PHI P(or Y) * Caption : Ratios of the helicity amplitudes (taken to be purely imaginary) * and phase difference between the T11 and T00 amplitudes * (the amplitude ratios T10/T00 and T-11/T00 and the phase * difference phi01 -phi00 are taken to be 0), computed from global * fits to the measurements of the 15 spin density matrix * elements, as a function of |t|, separately for 2.5 RHO0 P(or Y) / Q**2 = 3.3 GeV**2 * 0.08 0.773 0.020 0.032 -0.015 0.128 0.020 0.037 -0.057 -0.007 0.012 0.015 -0.004 -0.004 0.015 0.003 -0.005 0.939 0.026 0.019 -0.029 0.34 0.769 0.031 0.042 -0.033 0.281 0.034 0.060 -0.062 -0.062 0.019 0.012 -0.010 -0.015 0.026 0.011 -0.009 0.851 0.040 0.047 -0.053 1.05 0.673 0.067 0.048 -0.040 0.248 0.070 0.043 -0.043 0.138 0.046 0.013 -0.027 -0.095 0.051 0.036 -0.015 0.929 0.094 0.088 -0.293 * * GAMMA* P --> RHO0 P(or Y) / Q**2 = 8.6 GeV**2 * 0.08 0.559 0.013 0.018 -0.012 0.059 0.014 0.028 -0.028 0.012 0.009 0.005 -0.005 -0.009 0.011 0.002 -0.001 0.947 0.026 0.023 -0.031 0.34 0.445 0.016 0.029 -0.010 0.104 0.020 0.050 -0.046 -0.007 0.012 0.010 -0.007 -0.037 0.016 0.034 -0.008 0.894 0.044 0.094 -0.089 1.05 0.422 0.021 0.029 -0.107 0.113 0.033 0.056 -0.064 -0.103 0.019 0.046 -0.022 -0.090 0.023 0.070 -0.025 0.955 0.076 0.087 -0.241 * * * 0.08 0.713 0.024 0.018 -0.016 0.046 0.025 0.030 -0.033 -0.007 0.016 0.007 -0.008 -0.029 0.021 0.009 -0.003 0.969 0.042 0.004 -0.033 0.34 0.650 0.036 0.020 -0.013 0.117 0.039 0.052 -0.056 -0.033 0.025 0.016 -0.011 -0.050 0.031 0.020 -0.009 0.869 0.057 0.056 -0.045 1.05 0.478 0.053 0.113 -0.147 0.164 0.065 0.225 -0.183 -0.056 0.044 0.059 -0.056 -0.015 0.049 0.067 -0.040 0.851 0.146 0.245 -0.270