Journal
NUCLEAR PHYSICS B
Volume 868, Issue 2, Pages 416-458Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysb.2012.11.018
Keywords
Feynman diagrams; Loop calculations; Radiative corrections; Effective Lagrangian; Higgs physics
Categories
Funding
- MIUR [2001023713_006]
- Compagnia di San Paolo [ORTO11TPXK]
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Either late autumn this year or latest early next year ATLAS/CMS should have results with 2-3 times the current data which might give first clues on the couplings of the light narrow resonance discovered at the LHC in July 2012, compatible with the Higgs boson of the Standard Model. A strategy for measuring deviations from the Standard Model can be based on using the full Standard Model, including all available QCD and electroweak higher-order corrections, and supplement it with d = 6 local operators. Their Wilson coefficients are assumed to be small enough that they can be treated at leading order. Examples of the connection of local operators with BSM Lagrangians are presented as well as a discussion of Lagrangians with/without decoupling of heavy degrees of freedom. The whole strategy is critically reviewed in the light of internal consistency and an Effective NLO Approximation is proposed. (C) 2012 Elsevier B.V. All rights reserved.
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