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arXiv 0802.4423hep-phhep-th
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有效电势和真空稳定性

Effective potential and vacuum stability

Vincenzo Branchina, Hugo Faivre, Vincent Pangon

摘要:

通过对Higgs-Yukawa模型的精确分析,我们研究了电弱真空对顶圈修正的不稳定性问题。我们发现,当在理论中适当地实现物理截止时,势不会表现出任何不稳定性。此外,与最近的索赔,我们表明,这种不稳定性不能理解的非常有见地的工作吴和温伯格的非凸性的单圈有效潜力的标量理论。我们的结果的一些理论和唯象的后果进行了简要的讨论。

英文摘要:

By following previous work on this subject, we investigate the issue of the instability of the electroweak vacuum against the top loop corrections by performing an accurate analysis of a Higgs-Yukawa model. We find that, when the physical cutoff is properly implemented in the theory, the potential does not exhibit any instability. Moreover, contrary to recent claims, we show that this instability cannot be understood in terms of the very insightful work of Wu and Weinberg on the non-convexity of the one-loop effective potential of a scalar theory. Some of the theoretical and phenomenological consequences of our results are briefly discussed.

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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