Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-09-12
Phys.Rev.D77:034008,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages; journal version
Scientific paper
10.1103/PhysRevD.77.034008
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. The relations among amplitudes for double charmonia production $\e^+e^-\to \psi\chi_{0,1,2}$ are expected to differ from the analagous relations among light flavour production such as $\e^+e^-\to \omega f_{0,1,2}$.
Burns T. J.
Close Frank E.
Thomas Christopher E.
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