F. J. Yndurain

Hadronic contributions to the anomalous magnetic moment of the muon

We present a new, completely revised calculation of the muon anomalous magnetic moment

Precision determination of the pion form factor and calculation of the muon g − 2

{a}_{\ensuremath{\mu}}=({g}_{\ensuremath{\mu}}\ensuremath{-}2)/2

Pion-pion scattering amplitude

comparing it with the more recent experimental determination of this quantity; this furnishes an important test of theories of strong, weak, and electromagnetic interactions. These theoretical determinations give the very precise numbers,

Regge analysis of pion-pion (and pion-kaon) scattering for energy s 1 / 2 > 1.4 GeV

{10}^{11}\ifmmode\times\else\texttimes\fi{}{a}_{\ensuremath{\mu}}=116\text{ }591\text{ }806\ifmmode\pm\else\textpm\fi{}50\ifmmode\pm\else\textpm\fi{}10(\mathrm{rad})\ifmmode\pm\else\textpm\fi{}30(\ensuremath{\ell}\ifmmode\times\else\texttimes\fi{}\ensuremath{\ell})\text{ }\phantom{\rule{0ex}{0ex}}[\mathrm{Theory},\mathrm{no}\text{ }\text{ }\ensuremath{\tau}]

On the precision of chiral-dispersive calculations of ππ scattering

and

Some comments on calculations of the scalar radius of the pion and the chiral constant Ī4

{10}^{11}\ifmmode\times\else\texttimes\fi{}{a}_{\ensuremath{\mu}}=116\text{ }591\text{ }889\ifmmode\pm\else\textpm\fi{}49\ifmmode\pm\else\textpm\fi{}10(\mathrm{rad})\ifmmode\pm\else\textpm\fi{}30(\ensuremath{\ell}\ifmmode\times\else\texttimes\fi{}\ensuremath{\ell})\text{ }[\mathrm{Theory},\ensuremath{\tau}]

Precise analysis of ππ scattering data from Roy equations and forward dispersion relations

to be compared with the experimental number,

Calculation of alpha-bar (QED) on the Z

{10}^{11}\ifmmode\times\else\texttimes\fi{}{a}_{\ensuremath{\mu}}=116\text{ }592\text{ }080\ifmmode\pm\else\textpm\fi{}60

Evaluation of the axial-vector commutator sum rule for pion-pion scattering

. In the theoretical evaluations, the first quantity does not, and the second one does, use information from

Basic parameters and some precision tests of the standard model

\ensuremath{\tau}