Constraining anomalous Higgs boson couplings to virtual photons
Constraining anomalous Higgs boson couplings to virtual photons
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DOI：
10.1103/physrevd.105.096027
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发表时间：
2021-09
影响因子：
5
通讯作者：
Jeffrey A. Davis;A. Gritsan;L. S. M. Guerra;S. Kyriacou;J. Roskes;M. Schulze
中科院分区：
文献类型：
--
作者：
Jeffrey A. Davis;A. Gritsan;L. S. M. Guerra;S. Kyriacou;J. Roskes;M. Schulze
我们提出了一个研究希格斯玻色子生产矢量玻色子融合，并与一个矢量玻色子和它的衰变到两个矢量玻色子，重点是虚环和虚光子的治疗。我们的分析是用JHU生成器框架进行的。与其他几种框架进行了比较，结果用有效场理论表示。这项研究的新特征包括关于如何处理希格斯玻色子通过光子衰变为轻费米子的奇异性的建议、在存在与光子的异常耦合的情况下计算部分希格斯玻色子宽度、次领先的比较-阶电弱修正对有效耦合的影响，和唯象观测的中间光子的特殊作用，在分析LHC数据的有效场理论框架。其中一些功能说明与预测的实验测量与完整的LHC和HL-LHC数据集。
We present a study of Higgs boson production in vector boson fusion and in association with a vector boson and its decay to two vector bosons, with a focus on the treatment of virtual loops and virtual photons. Our analysis is performed with the JHU generator framework. Comparisons are made to several other frameworks, and the results are expressed in terms of an effective field theory. New features of this study include a proposal on how to handle singularities involving Higgs boson decays to light fermions via photons, calculation of the partial Higgs boson width in the presence of anomalous couplings to photons, a comparison of the next-to-leading-order electroweak corrections to effects from effective couplings, and phenomenological observations regarding the special role of intermediate photons in analysis of LHC data in the effective field theory framework. Some of these features are illustrated with projections for experimental measurements with the full LHC and HL-LHC datasets.