ar X iv : n uc l - ex / 0 30 50 31 v 1 2 8 M ay 2 00 3 Near - threshold production of ω mesons in the pn → dω reaction

ar X iv : n uc l - th / 9 90 50 49 v 2 2 6 M ay 1 99 9 η - and η ′ - meson production in the reaction pn → dM near threshold

ar X iv : n uc l - th / 9 90 50 49 v 1 2 1 M ay 1 99 9 η - and η ′ - meson production in the reaction pn → dM near threshold

ar X iv : n uc l - th / 0 30 30 44 v 1 1 8 M ar 2 00 3 Photoproduction of η ′ - mesons from the Proton

The presently available data for the reaction γp→η ′ p are analyzed in terms of a model in which the dominant production mechanism is the exchange of the vector mesons ω and ρ. To describe the data at photon energies close to the production threshold we introduce a resonance contribution due to the well established S 11 (1535) resonance. Finally we study the contributions due to nucleon exchang...

ar X iv : n uc l - th / 0 50 40 81 v 2 9 M ay 2 00 5 Formation of mesic nuclei by ( γ , p ) reactions

We present a theoretical study on formation rates of η and ω meson-nucleus systems induced by (γ, p) reactions on nuclear targets at ideal recoilless condition. We find that the smaller distortion effect in the (γ, p) reaction enables us to investigate properties of the mesons created deeply inside nucleus more clearly. We also consider excitation of scalar-isoscalar (σ) mode in nucleus in orde...

ar X iv : n uc l - ex / 0 10 70 09 v 1 1 2 Ju l 2 00 1 Production of ω mesons in proton - proton collisions ⋆

The cross section for the production of ω mesons in proton-proton collisions has been measured in a previously unexplored region of incident energies. Cross sections of σ = (7.5± 1.9)μb and σ = (30.8± 3.4) μb (with 20% systematic uncertainties) were extracted at 92 MeV and 173 MeV excess energy, respectively. The angular distribution of the ω at ǫ = 173 MeV is strongly anisotropic, demonstratin...