Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP11(2013)066
Keywords
Higgs Physics; Beyond Standard Model
Categories
Funding
- CERN
- CPAN [CSD2007-00042]
- Spanish Ministry MICNN [FPA2010-17747, FPA2011-25948]
- Generalitat de Catalunya [2009SGR894]
- ICREA Academia Program
- Spanish Ministry MECD through the FPU grant [AP2010-3193]
- ICREA Funding Source: Custom
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The leading contributions from heavy new physics to Higgs processes can be captured in a model-independent way by dimension-six operators in an effective Lagrangian approach. We present a complete analysis of how these contributions affect Higgs couplings. Under certain well-motivated assumptions, we find that 8 CP-even plus 3 CP-odd Wilson coefficients parametrize the main impact in Higgs physics, as all other coefficients are constrained by non-Higgs SM measurements. We calculate the most relevant anomalous dimensions for these Wilson coefficients, which describe operator mixing from the heavy scale down to the electroweak scale. This allows us to find the leading-log corrections to the predictions for the Higgs couplings in specific models, such as the MSSM or composite Higgs, which we find to be significant in certain cases.
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