Abstract
A consistent framework for studying Standard Model deviations is developed. It assumes that New Physics becomes relevant at some scale beyond the present experimental reach and uses the Effective Field Theory approach by adding higher-dimensional operators to the Standard Model Lagrangian and by computing relevant processes at the next-to-leading order, extending the original κ -framework. The generalized κ -framework provides a useful technical tool to decompose amplitudes at NLO accuracy into a sum of well defined gauge-invariant sub components.
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ArXiv ePrint: 1505.03706
Work supported by MIUR under contract 2001023713_006, by UniTo — Compagnia di San Paolo under contract ORTO11TPXK and by the Executive Research Agency (REA) of the European Union under the Grant Agreement PITNGA-2012-316704 (HiggsTools).
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Ghezzi, M., Gomez-Ambrosio, R., Passarino, G. et al. NLO Higgs effective field theory and κ-framework. J. High Energ. Phys. 2015, 175 (2015). https://doi.org/10.1007/JHEP07(2015)175
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DOI: https://doi.org/10.1007/JHEP07(2015)175