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arXiv 2212.11206hep-lathep-ph
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用扭曲边界条件直接计算强子衰变参数

Direct access to hadronic decay parameters with twisted boundary conditions

Benoît Blossier, Jochen Heitger, Jan Neuendorf, Teseo San José

摘要:

我们的探索性研究寻找直接进入共振强子跃迁振幅,而不诉诸于Lüscher形式主义。我们研究了衰变$Ψ(3770)\to\bar{D}D$通过施加部分扭曲的边界条件的淬灭的魅力夸克,规避可能的问题与末态相互作用。如果成功的话,我们就可以计算跃迁振幅对粲夸克质量的依赖关系,并检验夸克对产生唯象模型的预言。最后,我们研究了激发态$Ψ(3770)$的提取是否以及在何种程度上是必要的。

英文摘要:

Our exploratory study looks for direct access to the resonant hadronic transition amplitude without resorting to the Lüscher formalism. We study the decay $Ψ(3770)\to\bar{D}D$ by applying partially twisted boundary conditions to the quenched charm quark, circumventing possible problems with final state interactions. If successful, we could compute the dependence of the transition amplitude on the charm-quark mass and test the predictions made by phenomenological quark-pair-creation models. Finally, we study if and to what extent an extraction of the excited state $Ψ(3770)$ is necessary for this analysis.

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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