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arXiv 1012.4377hep-ph
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库仑势为微扰的QCD势模型中的Isgur-Wise函数

Isgur-Wise function in a QCD potential model with coulombic potential as perturbation

Bhaskar Jyoti Hazarika, Krishna Kingkar Pathak, D K Choudhury

摘要:

本文在量子色动力学的夸克模型中研究了重轻介子,模型采用了康奈尔势$-\frac{4α_{S}}{3r}+br+c$。这里我们把线性项$br$作为母体,把$-\frac{4α_{S}}{3r}+c$即Coloumbic部分作为微扰,线性母体导致Airy函数作为未微扰波函数。然后用微扰论中的Dalgarno方法得到了以库仑peice为微扰量的修正到一阶的总波函数,并利用这些波函数研究了Isgur-Wise函数,计算了它的斜率和曲率。

英文摘要:

We study heavy light mesons in a QCD inspired quark model with the Cornell potential$-\frac{4α_{S}}{3r}+br+c$. Here we consider the linear term $br$ as the parent and $-\frac{4α_{S}}{3r}+c$ i.e.the Coloumbic part as the perturbation.The linear parent leads to Airy function as the unperturbed wavefunction. We then use the Dalgarno method of perturbation theory to obtain the total wavefunction corrected upto first order with Coulombic peice as the perturbation.With these wavefunctions, we study the Isgur-Wise function and calculate its slope and curvature.

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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