Electroweak and supersymmetric two-loop corrections to (g−2)μ
By Sven Heinemeyer, D. Stockinger, Georg Weiglein. 2004
187 citations recorded by the source corpus.
Abstract We present the up to now most precise evaluation of electroweak and supersymmetric contributions to the anomalous magnetic moment of the muon a μ , 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 2 σ of the current experimental uncertainty.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/9f0ebd72ebeff1344cf7e622ad0bf7698b2112af
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In Nuclear and High Energy Physics
Citations in the corpus
- The Muon Magnetic Moment and Supersymmetry (2006, background): “[48, 49] the numerical results of all two-loop contributions in (60) were compared and analyzed in detail, taking into account that the SUSY parameters are constrained by experimental bounds on b-decays, Mh and other quantities.”