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Global constraints on anomalous triple gauge couplings in effective field theory approach
- Source :
- Phys. Rev. Lett. 116, 011801 (2016)
- Publication Year :
- 2015
-
Abstract
- We present a combined analysis of LHC Higgs data (signal strengths) together with LEP-2 WW production measurements. To characterize possible deviations from the Standard Model (SM) predictions, we employ the framework of an Effective Field Theory (EFT) where the SM is extended by higher-dimensional operators suppressed by the mass scale of new physics $\Lambda$. The analysis is performed consistently at the order $\Lambda^{-2}$ in the EFT expansion keeping all the relevant operators. While the two data sets suffer from flat directions, together they impose stringent model-independent constraints on the anomalous triple gauge couplings. As a side product, we provide the results of the combined fit in different EFT bases.<br />Comment: 7 pages. v2: References and clarifications added
- Subjects :
- High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 116, 011801 (2016)
- Publication Type :
- Report
- Accession number :
- edsarx.1508.00581
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.116.011801