Global Constraints on Anomalous Triple Gauge Couplings in the Effective Field Theory Approach
Abstract
We present a combined analysis of LHC Higgs data (signal strengths) together with LEP-2 W W 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 Λ . The analysis is performed consistently at the order Λ-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.
- Publication:
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Physical Review Letters
- Pub Date:
- January 2016
- DOI:
- 10.1103/PhysRevLett.116.011801
- arXiv:
- arXiv:1508.00581
- Bibcode:
- 2016PhRvL.116a1801F
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 7 pages. v2: References and clarifications added