Tensor polarization of vector mesons from quark and gluon fragmentation

Details Tensor polarization of vector mesons from quark and gluon fragmentation Tensor polarization of vector mesons from quark and gluon fragmentation

1999-06-23

arxiv.org/abs/hep-ph/9906471v2

Phys.Lett. B464 (1999) 94-100

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, LATEX with 2 .eps figures

Scientific paper

10.1016/S0370-2693(99)00984-3

We considered the electro- and photoproduction of \rho and other vector mesons with moderately large transverse momentum in the scattering of unpolarized electrons on unpolarized nucleons and nuclei. For these processes we have analyzed how to extract the novel fragmentation functions \bar b_1^q(z), \bar b_1^G(z), describing tensor polarization, and the photon double spin-flip distribution \Delta^\gamma from the angular distribution of meson decay products.

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