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arXiv 0811.2710hep-ph
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由组分模型得到的Gebrishball谱

The Glueball Spectrum from Constituent Models

V. Mathieu, F. Buisseret, C. Semay, B. Silvestre-Brac

摘要:

本文提出了一个含有三个胶子的奇$C$(负电荷宇称)胶球模型。该模型是以前研究的双胶子胶球的扩展。我们发现,即使自旋为1的胶子似乎可以正确地再现$C=+$态的格点量子色动力学谱,对$C=-$的扩展也不能与晶格结果相匹配。借助于螺旋度理论,我们证明了横胶子如何更好地拟合格点量子色动力学谱。

英文摘要:

We present a model for odd-$C$ (negative charge parity) glueballs with three constituent gluons. The model is an extension of a previous study of two-gluon glueballs. We show that, even if spin-1 gluons seem to reproduce properly the lattice QCD spectrum for $C=+$ states, the extension for $C=-$ cannot match with the lattice results. Resorting to the helicity formalism, we show how transverse gluons fit in better agreement the lattice QCD spectrum.

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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