New results on the hadronic vacuum polarization contribution to the muon g-2
Results on the lowest-order hadronic vacuum polarization contribution to the muon magnetic anomaly are presented.They are based on the latest published experimental data used as input to the dispersion integral.Thus recent results on τ→ντππ0 decays from Belle and on e+e-annihilation to π+π-from BABAR and KLOE are included.The new data,together with improved isospin-breaking corrections for τ decays,result into a much better consistency among the different results.A discrepancy between the Standard Model prediction and the direct g-2 measurement is found at the level of 3σ.
muon magnetic moment vacuum polarization electron-positron annihilation tan decays g-2
Michel Davier
Laboratoire de lAccélérateur Linéaire,IN2P3/CNRS,Université Paris-Sud 11,Orsay 91898,France
国际会议
北京
英文
718-727
2009-10-13（万方平台首次上网日期，不代表论文的发表时间）