Reduction schemes in cutoff regularization and Higgs decay into two photons

Reduction schemes in cutoff regularization and Higgs decay into two photons
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截止正则化和希格斯粒子衰变成两个光子的简化方案

DOI:
10.1007/jhep01(2012)053
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发表时间:
2011-10
影响因子:
5.4
通讯作者:
--
中科院分区:
物理与天体物理2区
文献类型:
--
作者:

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摘要 我们提出了一种在常规紫外截断正则化中计算一圈张量积分的新的系统方法。通过推导一个描述紫外积分的动量平移变化的新的递推关系,我们实施……
A bstractWe present a new systematic method to evaluate one-loop tensor integrals in conventional ultraviolet cutoff regularization. By deriving a new recursive relation that describes the momentum translation variance of ultraviolet integrals, we implement this relation in the Passarino-Veltman reduction method. With this method, we recalculate the Higgs boson decay into two photons at one-loop level in the Standard Model. We reanalyze this process carefully and clarify some issues arisen recently in cutoff regularization.
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