Backward-angle photoproduction of $\omega$ and ${\eta }^{\prime }$ mesons from protons at $E_{\gamma }=1.5-3.0$ GeV

Abstract

We report the measurement of differential cross sections for $\omega$ and ${\eta }^{\prime }$ photoproduction from protons at backward angles ($-1.0<\cos {\Theta }_{C.M}^X<-0.8$) using linearly polarized photons at $E_{\gamma }=$$1.5-3.0$ GeV. Differential cross sections for $\omega$ mesons are larger than the predicted $u$-channel contribution in the energy range $2.0\le \sqrt{s}\le 2.4$ GeV. The differential cross sections for $\omega$ and ${\eta }^{\prime }$ mesons become closer to the predicted $u$-channel contribution at $\sqrt{s}>2.4$ GeV. A bump structure in the $\sqrt{s}$ dependence of the differential cross sections for ${\eta }^{\prime }$ mesons was observed at $\sqrt{s}\sim$2.35 GeV.

15pages 4figures

References in corpus (7)

• Photoproduction of $\eta$ and $\eta \prime$ Mesons off Protons
• Differential cross sections for the reactions gamma p-> p eta and gamma p -> p eta-prime
• Measurement of eta photoproduction on the proton from threshold to 1500 MeV
• Differential cross sections and spin density matrix elements for the reaction gamma p -> p omega
• Combined analysis of eta' production reactions: gamma N -> eta' N, N N -> N N eta', and pi N -> eta' N
• Partial wave analysis of the reaction gamma p -> p omega$ and the search for nucleon resonances
• GeV Photon Beams for Nuclear/Particle Physics

Cited by in corpus (9)

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• Search for ${\eta }^{\prime }$ bound nuclei in the ${}^{12}\mathrm{C}(\gamma ,p)$ reaction with simultaneous detection of decay products
• First measurement of coherent $\varphi$-meson photoproduction from helium-4 near threshold
• Effect of the transfer reactions for 16O+10B elastic scattering
• Backward-Angle ($u$-channel) Production at an Electron-Ion Collider
• Features of $\omega$ photoproduction off proton target at backward angles : Role of nucleon Reggeon in $u$-channel with parton contributions
• Some Phenomenological Aspects of Kaon Photoproduction in the Extreme Kinematics
• Effect of the final state interaction of ${\eta }^{\prime }N$ on the ${\eta }^{\prime }$ photoproduction off nucleon
• Backward-angle electroproduction of ${\eta }^{\prime }$ mesons off protons at $W=2.13\text{GeV}$ and $Q^2=0.46{\left(\text{GeV}/c\right)}^2$