Can VMD improve the estimate of the muon g-2?
We show that a VMD based theoretical input allows for a significantly improved accuracy for the hadronic vacuum polarization of the photon which contributes to the theoretical estimate of the muon g-2.We also show that the only experimental piece of information in the τ decay which cannot be accounted for within this VMD framework is the accepted value for Br(τ→ππντ),while the τ spectum lineshape is in agreement with expectations from e+e-annihilations.
VMD isospin symmetry breaking g-2
M.Benayoun L.Del Buono B.P.David O.Leitner
LPNHE des Universités Paris Ⅵ et Ⅶ,IN2P3-CNRS,Paris,75005,France
国际会议
北京
英文
698-704
2009-10-13（万方平台首次上网日期，不代表论文的发表时间）