We review the present status of the Standard Model calculation of the anomalous magnetic
moment of the muon. This is performed in a perturbative expansion in the fine-structure …

Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

We address the contribution of the 3 π channel to hadronic vacuum polarization (HVP) using
a dispersive representation of the e+ e−→ 3 π amplitude. This channel gives the second …

We present a detailed analysis of e+ e−→ π+ π− data up to s= 1 GeV in the framework of
dispersion relations. Starting from a family of ππ P-wave phase shifts, as derived from a …

The muon anomalous magnetic moment is one of the most precisely measured quantities in
particle physics. In a recent experiment at Brookhaven it has been measured with a …

We reevaluate the hadronic contributions to the muon magnetic anomaly, and to the running
of the electromagnetic coupling constant at the Z-boson mass. We include new π+ π− cross …

The inspiration for this book came from François le Diberder. During his term as
spokesperson for B 八 B 八 R he laid down a vision for the two B Factory detector …

At low energies hadronic vacuum polarization (HVP) is strongly dominated by two-pion
intermediate states, which are responsible for about 70% of the HVP contribution to the …

In this paper, we discuss how windows in Euclidean time can be used to isolate the origin of
potential conflicts between evaluations of the hadronic-vacuum-polarization (HVP) …

Glueballs, hybrids and multiquark states are predicted as bound states in models guided by
quantum chromo dynamics (QCD), by QCD sum rules or QCD on a lattice. Estimates for the …