STATUS OF MONTE CARLO GENERATORS FOR ENERGY SCAN AND RADIATIVE RETURN

A short description of generators used in low energy experiments measuring the hadronic cross section with scan and radiative return methods is presented.

Experiments Needed in Meson and Baryon Spectroscopy

Three (or four) straightforward experiments would contribute greatly to completing the spectroscopy of baryons and light mesons. In the baryon sector, data are needed on inelastic reactions from a polarised target withπ±andK±beams up to∼3 GeV/c. Similar data are needed in the light meson sector forp¯pinteractions in the momentum range 0.3–2 GeV/c. In both cases, valuable information is to be obtained from longitudinal (L) and sideways (S) target polarisations as well as the conventional normal (N) polarisation. Thirdly,3S1and3D1mesons in the mass range 1–2.4 GeV could probably be separated either by diffractive dissociation of transversely polarised photons or bye+e−radiative return experiments using transversely and longitudinally polarised electrons.