The extraction of ϕ−Nϕ-N total cross section from d(γ,pK+K−)nd(γ,pK^{+}K^{-})n

preprint2009arXivOpen access

Abstract

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

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