Experiments needed in Meson and Baryon Spectroscopy

Abstract

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 with pi and kaon beams up to 3 GeV/c. Similar data are needed in the light meson sector for pbar-p interactions in the momentum range 0.3 to 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, 3S_1 and 3D_1 mesons in the mass range 1 to 2.4 GeV/c could probably be separated either by diffractive dissociation of transversely polarised photons or by radiative return experiments using transversely and longitudinally polarised electrons.

12 pages, 3 figures Additional material included in Sections 2,3,4

References in corpus (15)

• Four Sorts of Mesons
• First Measurement of Beam-Recoil Observables Cx and Cz in Hyperon Photoproduction
• Restoration of chiral and $U(1{)}_A$ symmetries in excited hadrons
• New results on the Roper resonance and the P_{11} partial wave
• Highly Excited Mesons, Linear Regge Trajectories and the Pattern of the Chiral Symmetry Realization
• I = 0 C = +1 mesons from 1920 to 2410 MeV
• N* and Delta* decays into N pi0 pi0
• Properties of new unflavored mesons below 2.4 GeV
• Baryon resonances and polarization transfer in hyperon photoproduction
• Partial wave analysis of pbar-p annihilation channels in flight with I=1, C=+1
• Parity doubling in particle physics
• Further evidence for N(1900)P_{13} from photoproduction of hyperons
• Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
• Parity Doubling and SU(2)_L x SU(2)_R Restoration in the Hadron Spectrum
• Chiral symmetry and the string description of excited hadrons