6533b855fe1ef96bd12b1480
RESEARCH PRODUCT
Anomalous magnetic moment of the muon in a dispersive approach
Vladyslav PaukMarc Vanderhaeghensubject
PhysicsNuclear and High Energy PhysicsParticle physicsMuonMesonAnomalous magnetic dipole momentUnitarityNuclear TheoryHadronVertex functionFOS: Physical sciencesNuclear Theory (nucl-th)Formalism (philosophy of mathematics)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Dispersion relationHigh Energy Physics::Experimentdescription
We present a new general dispersive formalism for evaluating the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon. In the suggested approach, this correction is related to the imaginary part of the muon's electromagnetic vertex function. The latter may be directly related to measurable hadronic processes by means of unitarity and analyticity. As a test we apply the introduced formalism to the case of meson pole exchanges and find agreement with the direct two-loop calculation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-09-02 |