Oxygen adsorption and subsequent oxide formation on Cu(110) using a hyperthermal oxygen molecular beam (HOMB) were investigated using X-ray photoelectron spectrometry. The O-uptake curves, which were determined from the evolution of the O-1s peaks, indicate that simple Langmuir type kinetics can describe dissociative adsorption of O-2 with an incident energy (E-i) below 0.5 eV under Theta <= 0.5 ML. The reaction order dependence oil E-i implies two competing dissociation mechanisms, trapping-mediated and directly activated adsorption. Oxidation at Theta <= 0.5 ML proceeds rather effectively using highly energetic HOMB at E-i >= 1.0 eV. The azimuthal dependence of the sticking probability during the effective oxidation using HOMB incidence Suggests that the added rows, which consist of the Cu-O structure, shade the reactive hollow sites in the trough where oxygen penetrates into the subsurface. The surface Cu-2 formed with highly energetic HOMB incidence decomposes with desorbing subsurface oxygen even at room temperature, demonstrating that HOMB can induce a metastable surface Structure that cannot be produced in the thermal equilibrium process.