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arXiv 0902.0905hep-thhep-ph
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在类希格斯模型中从屏蔽到约束

From screening to confinement in a Higgs-like model

Patricio Gaete, Euro Spallucci

摘要:

我们研究了最近提出的类希格斯模型(arXiv:0811.4423 [hep-th]),在规范不变,但路径依赖变量形式主义的框架。我们计算了标量和费米子凝聚体中试探电荷之间的静电势。在带电质量标量的情况下,我们恢复屏蔽势。另一方面,在Higgs的情况下,与一个“快子”的质量项和一个四次势的拉格朗日,意想不到的功能被发现,它被观察到的相互作用能是一个有效的汤川和一个线性势的总和,导致静电荷的禁闭。

英文摘要:

We investigate a recently proposed Higgs-like model (arXiv:0811.4423 [hep-th]), in the framework of a gauge-invariant but path-dependent variables formalism. We compute the static potential between test charges in a condensate of scalars and fermions. In the case of charged massive scalar we recover the screening potential. On the other hand, in the Higgs case, with a "tachyonic" mass term and a quartic potential in the Lagrangian, unexpected features are found. It is observed that the interaction energy is the sum of an effective-Yukawa and a linear potential, leading to the confinement of static charges.

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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