Authors Referees APS Members |
December 2007, to be published in Physical Review D1
Dynamics of hadron strong production and decay
We generalize results of lattice QCD to determine the spin-dependent symmetries and factorization properties of meson production in OZI allowed processes. This explains some conjectures previously made in the literature about axial meson decays and gives predictions for exclusive decays of vector charmonia, including ways of establishing the structure of $Y(4260)$ and $Y(4325)$ from their S-wave decays. Factorization gives a selection rule which forbids $e^+e^- \to D^* D_2$ near threshold with the tensor meson in helicity 2. A different pattern of amplitudes is expected for heavy flavour production such as $e^+e^- \to \psi + \chi_j$ than for their charmed or light flavoured counterparts. © 2008 The American Physical Society.
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