Study of possible ωbound states in nuclei with the (γ,p) reaction

Abstract

We perform calculations for ωproduction in nuclei by means of the (γ,p) reaction for photon energies and proton angles suited to running and future experiments in present Laboratories. For some cases of possible ωoptical potentials we find clear peaks which could be observable provided a good resolution in the ωenergy is available. We also study the inclusive production of π^0 γin nuclei around the ωenergy and find a double hump structure for the energy spectra, with a peak around a π^0 γenergy of m_ω-100 MeV, which could easily be misidentified by a signal of a bound ωstate in nuclei, while it is due to a different scaling of the uncorrelated π^0 γproduction and ωproduction with subsequent π^0 γdecay.

19 pages, 10 figures

References in corpus (7)

• η- and η'-mesic nuclei and U_A(1) anomaly at finite density
• Inclusive $\omega$ photoproduction from nuclei and $\omega$ in the nuclear medium
• Omega attenuation in nuclei
• The spectral function of the omega meson in nuclear matter from a coupled-channel resonance model
• Nuclear-matter modification of decay widths in the $\varphi \to e^{+}{e}^{-}$ and $\varphi \to K^{+}{K}^{-}$ channels
• Nuclear mass number dependence of inclusive production of omega and phi mesons in 12 GeV p + A collisions
• Weighted finite energy sum rules for the omega meson in nuclear matter

Cited by in corpus (4)

• Interaction of vector mesons with baryons and nuclei
• ${\bar{K}}^{\ast }$ meson in dense matter
• On the background in the $\gamma p\to \omega ({\pi }^0\gamma )p$ reaction and mixed event simulation
• Photo- and Electron-Production of Mesons on Nucleons and Nuclei