Dynamics of hadron strong production and decay

Abstract

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 $e^{+}{e}^{-}\to D^{\ast }{D}_2$ near threshold with the tensor meson in helicity 2. The relations among amplitudes for double charmonia production $\e^+e^-\to ψχ_{0,1,2}$ are expected to differ from the analagous relations among light flavour production such as $\e^+e^-\to ωf_{0,1,2}$.

13 pages; journal version

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Cited by in corpus (11)

• The hidden-charm pentaquark and tetraquark states
• Phenomenology of $P_c(4380{)}^{+}$, $P_c(4450{)}^{+}$ and related states
• Hadron Loops: General Theorems and Application to Charmonium
• Spectra and decays of hybrid charmonia
• Production of $P_c$ states in ${\Lambda }_b$ decays
• Angular momentum coefficients for meson strong decay and unquenched quark models
• Hyperfine splitting and the experimental candidates for η_b(2S)
• How the small hyperfine splitting of P-wave mesons evades large loop corrections
• Looking for a gift of Nature: Hadron loops and hybrid mixing
• Charmonium production in e+e- to ψ+ X(c\bar c) and e+e- to D*D_J
• X(1870) and ${\eta }_2(1870)$: Which can be assigned as a hybrid state?