Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP02(2019)031
Keywords
Beyond Standard Model; Effective Field Theories
Categories
Funding
- China Scholarships Council [201706190097]
- US Department of Energy [DE-SC0014129]
- Hong Kong PhD Fellowship Scheme (HKPFS)
- Kavli Institute for Theoretical Physics
- Simons Foundation [216179]
- Gordon and Betty Moore Foundation [4310]
- National Science Foundation [NSF PHY-1748958]
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We present the results of the first complete one-loop matching calculation between the real singlet scalar extension of the Standard Model and the Standard Model effective field theory (SMEFT) at dimension six. Beyond their immediate relevance to the precision calculation of observables in singlet extensions of the Standard Model, our results illustrate a variety of general features of one-loop matching. We explore the interplay between non-supersymmetric non-renormalization theorems, the logarithmic dependence of Wilson coefficients, and the relevance of mixed diagrams in theories with large scale separation. In addition, we highlight some of the subtleties involved in computing observables at next-to-leading order in SMEFT by mapping our results to the T parameter at one loop.
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