Usefulness of effective field theory for boosted Higgs production
Usefulness of effective field theory for boosted Higgs production
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有效场论对于促进希格斯粒子产生的有用性
DOI：
10.1103/physrevd.91.074012
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发表时间：
2015
影响因子：
5
通讯作者：
M. Zeng
中科院分区：
文献类型：
--
作者：
S. Dawson;I. Lewis;M. Zeng
LHC中的Higgs +喷流通道在高p_T时对新物理的影响在总速率和横向动量分布上都很敏感。我们研究的生产过程中使用有效场理论（EFT）的语言，并讨论了可能性，以确定潜在的高尺度物理的性质，从提高希格斯生产。作为例子，我们考虑了重色三重标量和TeV质量的顶级伙伴费米子的影响，并在EFT中考虑了5维和7维的Higgs-胶子耦合。作为我们研究的一个副产品，我们研究了EFT的有效性区域。在现实的新物理模型中，7维贡献在Higgs信号的高p_T尾中产生了非常小的效应，以至于它们很可能是不可观测的。
The Higgs + jet channel at the LHC is sensitive to the effects of new physics both in the total rate and in the transverse momentum distribution at high p_T. We examine the production process using an effective field theory (EFT) language and discuss the possibility of determining the nature of the underlying high scale physics from boosted Higgs production. The effects of heavy color triplet scalars and top partner fermions with TeV scale masses are considered as examples and Higgs-gluon couplings of dimension-5 and dimension-7 are included in the EFT. As a by-product of our study, we examine the region of validity of the EFT. Dimension-7 contributions in realistic new physics models give effects in the high p_T tail of the Higgs signal which are so tiny that they are likely to be unobservable.