2004/05/25 by S. Heinemeyer, Sven Heinemeyer, Dominik Stöckinger +2 · 4 citations
Computer Science · Mathematics · Physics and Astronomy · #Anomalous magnetic dipole moment #Black Holes and Theoretical Physics #Boson #Combinatorics #Computational Physics and Python Applications #Electroweak interaction #Gauge (firearms) #Gauge boson #Gauge theory #Higgs boson #Higgs field #Higgs mechanism #Loop (graph theory) #Mathematics #Minimal Supersymmetric Standard Model #Muon #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Standard Model (mathematical formulation) #Supersymmetry #Technicolor #hep-ph
paper · pdf · doi:10.1016/j.nuclphysb.2004.08.014
published as Nucl.Phys. B699 (2004) 103-123 · 23 pages, 9 figures
arxiv created 2004/05/25 · openalex publication_date 2004/09/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the up to now most precise evaluation of electroweak and supersymmetric contributions to the anomalous magnetic moment of the muon \amu, describing in detail also the calculational techniques. We calculate the bosonic two-loop contributions in the Standard Model without the approximation of a heavy Higgs-boson mass, finding corrections up to 0.2*10-10 for a light Higgs boson. In the Minimal Supersymmetric Standard Model the corresponding two-loop contributions from the two-Higgs-doublet model part differ from the Standard Model result by up to 0.3*10-10. Finally, we evaluate the diagrams where a loop of charginos or neutralinos, the superpartners of gauge and Higgs bosons, is inserted into a two-Higgs-doublet one-loop diagram. These corrections can amount up to 10*10-10, which is almost 2σof the current experimental uncertainty.