Contribution to muon g-2 from π0γ and ηγ intermediate states in the vacuum polarization
Abstract
Using new experimental data, we calculate the contribution to the anomalous magnetic moment of the muon from the π0γ and ηγ intermediate states in vacuum polarization with high precision: aμ(π0γ)+aμ(ηγ)=(54.7+/-1.5)×10-11. We also find a small contribution from e+e-π0, e+e-η and μ+μ-π0 intermediate states equal to 0.5×10-11.
- Publication:
-
Physical Review D
- Pub Date:
- May 2002
- DOI:
- 10.1103/PhysRevD.65.097302
- arXiv:
- arXiv:hep-ph/0202047
- Bibcode:
- 2002PhRvD..65i7302A
- Keywords:
-
- 13.40.Em;
- 11.55.Fv;
- 14.60.Ef;
- Electric and magnetic moments;
- Dispersion relations;
- Muons;
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment;
- Nuclear Theory
- E-Print:
- 6 pages, 2 figures, revtex