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 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 super τ-charm facility (STCF) is an electron–positron collider proposed by the Chinese
particle physics community. It is designed to operate in a center-of-mass energy range from …

The cross section for e+ e-→ π+ π-J/ψ between 3.8 and 5.5 GeV is measured with a 967 fb-1
data sample collected by the Belle detector at or near the Υ (n S)(n= 1, 2,…, 5) resonances …

We extract the e+ e−→ π+ π− cross section in the energy range between 600 and 900 MeV,
exploiting the method of initial state radiation. A data set with an integrated luminosity of 2.93 …

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 …

Precise measurements of the lepton properties provide stringent tests of the Standard Model
and accurate determinations of its parameters. We overview the present status of τ physics …

The cross section for e+ e-→ π+ π-ψ (2 S) between threshold and s= 5.5 GeV is measured
using 673 fb-1 of data on and off the Υ (4 S) resonance collected with the Belle detector at …

The cross section for e+ e-→ π+ π-J/ψ between 3.8 and 5.5 GeV/c 2 is measured using a
548 fb-1 data sample collected on or near the Υ (4 S) resonance with the Belle detector at …