arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0909.0825hep-ph
收藏

双圈改正与轨道褶皱的可预报性

Two-loop corrections and predictability on orbifold

Nobuhiro Uekusa

摘要:

研究了轨道上五维$ϕ^4$理论中两点函数的量子圈修正和物理量的提取。在两圈水平上,我们发现$(p^2)^2$的四次导数项的发散在整体上表现为拉格朗日项。需要引入反项,这些反项使得传播子具有两个极点。考虑到这一影响,修正的质量。我们表明,提取两点函数的物理量的紫外线截止必须是一个紧化规模相比,更大的数量级。甚至在更高的回路水平更高的导数校正也进行了讨论。

英文摘要:

We study quantum loop corrections to two-point functions and extraction of physical quantities in a five-dimensional $ϕ^4$ theory on an orbifold. At two-loop level, we find that divergence for quartic derivative terms of $(p^2)^2$ appear as Lagrangian terms in the bulk. The counterterms are needed and these terms make propagators have two poles. With this effect taken into account, corrections to masses are derived. We show that for extraction of physical quantities for two-point functions an ultraviolet cutoff must be orders of magnitude larger compared to a compactification scale. Even higher derivative corrections at higher loop levels are also 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。

↑