Eighth-order magnetic moment of the electron. IV. Vertex diagrams containing photon-photon scattering subdiagrams

1989 ◽  
Vol 39 (8) ◽  
pp. 2407-2414 ◽  
Author(s):  
T. Kinoshita ◽  
W. B. Lindquist
Keyword(s):  
Magnetic Moment ◽  
Photon Scattering ◽  
Eighth Order

scholarly journals Inelastic photon scattering and the magnetic moment of the Δ (1232) resonance

2000 ◽  
Vol 484 (3-4) ◽  
pp. 236-242 ◽  
Author(s):  
D Drechsel ◽  
M Vanderhaeghen ◽  
M.M Giannini ◽  
E Santopinto
Keyword(s):  
Magnetic Moment ◽  
Photon Scattering

scholarly journals VIRTUAL PHOTON–PHOTON SCATTERING

2014 ◽  
Vol 35 ◽  
pp. 1460400 ◽  
Author(s):  
MARTIN HOFERICHTER ◽  
GILBERTO COLANGELO ◽  
MASSIMILIANO PROCURA ◽  
PETER STOFFER
Keyword(s):  
Light Scattering ◽  
Cross Section ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Virtual Photon ◽  
Vacuum Polarization ◽  
Lorentz Invariance ◽  
Analytic Structure ◽  
Photon Scattering ◽  
Virtual Photons

Based on analyticity, unitarity, and Lorentz invariance the contribution from hadronic vacuum polarization to the anomalous magnetic moment of the muon is directly related to the cross section of e+e− → hadrons . We review the main difficulties that impede such an approach for light-by-light scattering and identify the required ingredients from experiment. Amongst those, the most critical one is the scattering of two virtual photons into meson pairs. We analyze the analytic structure of the process γ*γ* → ππ and show that the usual Muskhelishvili–Omnès representation can be amended in such a way as to remain valid even in the presence of anomalous thresholds.

Eighth-Order Anomalous Magnetic Moment of the Electron

1981 ◽  
Vol 47 (22) ◽  
pp. 1573-1576 ◽  
Author(s):  
T. Kinoshita ◽  
W. B. Lindquist
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Eighth Order
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