2013/04/05 by Harrison Mebane, Nicolas Greiner, Cen Zhang +2
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Bounded function #Cosmology and Gravitation Theories #Dimension (graph theory) #Effective field theory #Electroweak interaction #Field (mathematics) #Field theory (psychology) #Gauge theory #Loop (graph theory) #Mathematical analysis #Mathematical physics #Mathematics #Observable #Operator (biology) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Theoretical physics #hep-ph
paper · pdf · doi:10.1016/j.physletb.2013.06.021
11 pages, 1 figure
arxiv created 2013/04/05 · openalex publication_date 2013/06/11 · arxiv updated 2015/06/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The one loop effects of two dimension-six operators on gauge boson self-energies are computed within an effective field theory framework. These self-energies are translated into effects on precision electroweak observables, and bounds are obtained on the operator coefficients. The effective field theory framework allows for the divergences that arise in the loop calculations to be properly handled, and for unambiguous bounds on the coefficients to be obtained. We find that the coefficients are only weakly bounded, in contrast to previous calculations that obtained much stronger bounds. We argue that the results of these previous calculations are specious.