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强子强产生和衰变的动力学

Dynamics of hadron strong production and decay

T. J. Burns, F. E. Close, C. E. Thomas

备注：
13 pages; journal version
发表信息：
Phys.Rev.D77:034008,2008
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摘要：

推广了格点量子色动力学的结果，确定了OZI允许过程中介子产生的自旋相关对称性和因子分解性质。这就解释了以往文献中关于轴介子衰变的一些假设，并给出了矢量粲夸克团的唯一衰变的预言，包括从它们的S波衰变建立Y（4260）和Y（4325）结构的方法。因式分解给出了一个选择定则，它禁止$e^+e^- \to D^* D_2$在阈值附近与螺旋度为2的张量介子发生碰撞。预期双charmonia产生$\e^+e^-\to ψχ_{0,1,2}$的幅度之间的关系不同于清淡风味产生之间的类似关系，例如$\e^+e^-\to ωf_{0,1,2}$。

英文摘要：

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 $\e^+e^-\to ψχ_{0,1,2}$ are expected to differ from the analagous relations among light flavour production such as $\e^+e^-\to ωf_{0,1,2}$.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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