The extraction of ϕ – N total cross section from d ( γ , p K + K
Physics Letters B(2009)
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 tagged-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, σϕN. 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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Key words
total cross section,<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml
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