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arXiv 1310.0972hep-lathep-ph
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从QCD晶格模拟精确确定X(3872)能量的策略

Strategies for an accurate determination of the X(3872) energy from QCD lattice simulations

E. J. Garzon, R. Molina, A. Hosaka, E. Oset

摘要:

我们发展了一种从$D \bar D^*$相互作用的点阵数据精确确定X(3872)的结合能的方法。我们指出,由于X(3872)的中性成分和带电成分之间的差别很小,如果希望精确地确定X(3872)的结合能,就必须在晶格谱的能级上区分它们。数据分析需要使用耦合通道。根据可用的能级数和盒子的大小,我们确定晶格能所需的精度,以最终获得结合能的所需精度。

英文摘要:

We develop a method to determine accurately the binding energy of the X(3872) from lattice data for the $D \bar D^*$ interaction. We show that, because of the small difference between the neutral and charged components of the X(3872), it is necessary to differentiate them in the energy levels of the lattice spectrum if one wishes to have a precise determination of the the binding energy of the X(3872). The analysis of the data requires the use of coupled channels. Depending on the number of levels available and the size of the box we determine the precision needed in the lattice energies to finally obtain a desired accuracy in the binding energy.

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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