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arXiv 0905.3352hep-lathep-ph
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关于重轻介子的内部结构

On internal structure of the heavy-light mesons

Damir Becirevic, Emmanuel Chang, Alain Le Yaouanc

摘要:

我们计算了晶格上重轻介子的矢量和轴向电荷密度以及物质密度的径向分布。用Nf=2的Wilson(Clover)型动力学夸克和各种改进的静态重夸克作用量,得到了最低位静态重轻介子及其第一激发态对应物的结果.根据这些分布,我们能够计算出相应的电荷和形状因子的斜率(即<r^2>)。这些结果也被提出,并简要讨论。

英文摘要:

We compute the radial distributions of the vector and axial charge density as well as of the matter density in the heavy-light mesons on the lattice. The results for the lowest lying static heavy-light mesons and their first excited counterparts are obtained with Nf=2 dynamical quarks of Wilson (Clover) type and with the various improved static heavy quark actions. From these distributions we were able to compute the corresponding charges and slopes of the form factors (i.e. <r^2>). Those results are also presented, and briefly discussed too.

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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