The extraction of φ-N total cross section from d(γ,pK+K-)n

Abstract

We report on the first measurement of the differential cross section of φ-meson photoproduction for the d(γ,pK+K-)n exclusive reaction channel. The experiment was performed using a blacktagged-photon beam and the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab. A combined analysis using data from the d(γ,pK+K-)n channel and those from a previous publication on coherent φ production on the deuteron has been carried out to extract the φ-N total cross section, σφ N. The extracted φ-N total cross section favors a value above 20 mb. This value is larger than the value extracted using vector-meson dominance models for φ photoproduction on the proton.

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