The quark model was formulated in 1964 to classify mesons as bound states made of a
quark–antiquark pair, and baryons as bound states made of three quarks. For a long time all …

In the past decade many charmonium-like states were observed experimentally. Especially
those charged charmonium-like Z c states and bottomonium-like Z b states cannot be …

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 …

Since the discovery of the first charmed meson in 1976, many open-charm and open-bottom
hadrons were observed. In 2003 two narrow charm-strange states $ D_ {s0}^{\ast}(2317) …

A golden age for heavy-quarkonium physics dawned a decade ago, initiated by the
confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of …

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 …

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 …

A bstract We present results from a state-of-the-art fit of electroweak precision observables
and Higgs-boson signal-strength measurements performed using 7 and 8 TeV data from the …

We highlight the progress, current status, and open challenges of QCD-driven physics, in
theory and in experiment. We discuss how the strong interaction is intimately connected to a …

The physical interpretation of lattice QCD simulations, performed in a small volume, requires
an extrapolation to the infinite volume. A method is proposed to perform such an …