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arXiv 0905.1348hep-ph
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关于自旋1共振传播子在一圈级的重整化的注记

Note on renormalization of the spin-1 resonance propagator at one loop order

Karol Kampf, Jiri Novotny, Jaroslav Trnka

摘要:

我们研究的各个方面的重整化的共振手征理论在单圈水平上使用一个自旋为1的共振传播子作为一个具体的例子。我们在反对称张量场论中明确地计算了单圈自能,简要地讨论了由Dyson求和得到的相应传播子的一般结构,并给出了传播自由度的分类.我们发现,额外的病理极点(负规范鬼或快子)是可再生的产生和各种情况下,根据他们的位置是可能的。我们还简要地评论了最终的动力学生成的相反的奇偶共振冻结在树的水平,并讨论了适当的对称性,可以防止这种情况下的作用。

英文摘要:

We study various aspects of the renormalization of the Resonance Chiral Theory at the one-loop level using a spin-one resonance propagator as a concrete example. We calculate explicitly the one-loop self-energy within the antisymmetric tensor field formalism, briefly discuss the general structure of the corresponding propagator obtained by means of the Dyson re-summation and give a classification of the propagating degrees of freedom. We find that additional pathological poles (negative norm ghosts or tachyons) are unavoidably generated and various scenarios according to their position are possible. We also briefly comment on the eventual dynamical generation of the opposite parity resonances which are frozen at the tree level and discuss the role of appropriate symmetry which could prevent such a scenario.

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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