New shapes of light-cone distributions of the transversely polarized ρ-mesons

Details New shapes of light-cone distributions of the transversely polarized ρ-mesons New shapes of light-cone distributions of the transversely polarized ρ-mesons

2000-06-17

arxiv.org/abs/hep-ph/0006206v3

Eur.Phys.J.C19:361-372,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 7 figures use psbox-macro, 1 table, introduction is improved, new (7) section with applications to semileptonic B->r

Scientific paper

10.1007/s100520100603

We re-analyze the leading twist light-cone distributions for transversely polarized \rho-, \rho'- and b_1-mesons in the framework of QCD sum rules with nonlocal condensates. Using different kinds of sum rules to obtain reliable predictions, we estimate the 2-, 4-, 6- and 8-th moments for transversely polarized \rho- and \rho'-meson distributions and re-estimate tensor couplings f^T_{\rho,\rho',b_1}. We stress that the results of standard sum rules also support our estimation of the second moment of the transversely polarized \rho-meson distribution. New models for light-cone distributions of these mesons are constructed. Phenomenological consequences from these distributions are briefly discussed. Our results are compared with those found by Ball and Braun (1996), and the latter is shown to be incomplete.

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