An extensive spectrum of light non-strange qq ̄ states up to a mass of 2400 MeV has
emerged from Crystal Barrel and PS172 data on p ̄ p→ Resonance→ A+ B in 17 final …

We present nucleon–antinucleon scattering experiments performed at the Low Energy
Antiproton Ring (LEAR) of CERN. The data are reviewed and the underlying physics is …

The s dependence of the electromagnetic proton form factors in the time-like region has
been determined from the threshold (s= 4M p 2) up to s= 4.2 GeV 2. Data were collected in a …

A large apparent violation of the OZI rule has recently been found in many channels in pp
annihilation at LEAR. An interpretation of these data in terms of the “shake-out” and …

The BES experiment at the Beijing electron-positron collider has observed the ξ (2230)
signal in π+ π−, K+ K−, KS 0 KS 0, and pp final states with 4.6 σ, 4.1 σ, 4.0 σ, and 3.8 σ …

We discuss here the binary reactions of strange and charmed particle production in ̄ pp
collisions at intermediate energies. In the case of baryon production with only one strange or …

A model for the nucleon-antinucleon interaction is presented which is based on meson-
baryon dynamics. The elastic part is the G-parity transform of the Bonn NN potential …

Model-independent identities and inequalities which relate the various spin observables of
collisions in nuclear and particle physics are reviewed in a unified formalism. Their physical …

New Crystal Barrel data are reported for p ̄ p→ ωπ 0 and p ̄ p→ ωηπ 0 with ω decaying to
π+ π− π0. The shapes of angular distributions agree well with those for data where ω→ π0γ; …

The radiative decay of J/ψ into a pure gauge tensor glueball is studied in the quenched
lattice QCD formalism. With two anisotropic lattices, the multipole amplitudes E 1 (0), M 2 (0) …