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arXiv 0901.1185hep-ph
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衰变J/psi-> VPP中的末态相互作用

Final state interactions in the decays J/psi->VPP

Bochao Liu, Markus Buescher, Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner

摘要:

我们研究了交叉道末态相互作用和两粒子么正性约束对反应J/psi-> Vpi pi和VK \bar K的影响,其中V是Ω或φ.使用一个模型的参数在很大程度上受到其他来源的约束,我们发现,虽然小,交叉通道的最终状态相互作用可以影响的幅度相当大,在相空间的特殊区域。这些结果对最近文献中提出的生产振幅的么正性约束的不适用性提出了质疑。

英文摘要:

We investigate the interplay between crossed channel final state interactions and the constraints from two--particle unitarity for the reactions J/psi->V pi pi and VK\bar K, where V is either omega or phi. Using a model where the parameters are largely constrained by other sources, we find that, although small, crossed channel final state interaction can influence the amplitudes considerably, in special areas of phase space. These results cast doubt on the inapplicability of unitarity constraints on production amplitudes as recently claimed in the literature.

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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