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arXiv 1503.06633hep-phhep-latnucl-th
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有限体积中的$S$ -波PDMATHAAB相互作用和$f_1(1285)$

$S$-wave $KK^*$ interaction in a finite volume and the $f_1(1285)$

Li-Sheng Geng, Xiu-Lei Ren, Yu Zhou, Hua-Xing Chen, Eulogio Oset

摘要:

格点量子色动力学模拟提供了一种很有前途的方法来解开强子共振的不同解释,这可能是特别相关的理解所谓的$XYZ$粒子的性质。最近的研究表明,除了已经建立的朴素夸克模型图片,轴矢量介子$f_1(1285)$也可以被理解为一个动态生成的状态建立在$KK^*$相互作用。在这项工作中,我们使用手征么正方法计算了有限体积下$f_1(1285)$通道中$KK^*$系统的能级。我们建议在维数正则化方案中计算循环函数,这相当于以前研究中采用的混合方法。我们还研究了从格点量子色动力学合成数据中提取束缚态信息的逆问题,并对我们的方法与L{\”u}scher方法的区别进行了评述。

英文摘要:

Lattice QCD simulations provide a promising way to disentangle different interpretations of hadronic resonances, which might be of particular relevance to understand the nature of the so-called $XYZ$ particles. Recent studies have shown that in addition to the well-established naive quark model picture, the axial-vector meson $f_1(1285)$ can also be understood as a dynamically generated state built upon the $KK^*$ interaction. In this work, we calculate the energy levels of the $KK^*$ system in the $f_1(1285)$ channel in finite volume using the chiral unitary approach. We propose to calculate the loop function in the dimensional regularization scheme, which is equivalent to the hybrid approach adopted in previous studies. We also study the inverse problem of extracting the bound state information from synthetic lattice QCD data and comment on the difference between our approach and the L{\" u}scher method.

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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