Tensor polarization of ω produced at threshold in p-p collisions

It is shown that the dominant decay mode of ω →π+π-π0 can be employed to determine the Fano statistical tensor t20 of ω with respect to the quantization axis normal to the decay plane. In pp → ppω one can choose decay planes with different orientations for a given direction of the momentum q of the ω meson produced. By choosing three different experimentally convenient orientations of the decay planes for the same q, one may determine empirically the t20 and t2±2 characterizing the tensor polarization of ω in the transverse frame for pp → ppω