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

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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.


© 2009 The Author(s).

Published by Elsevier B.V. under CC License Attribution 4.0 International (CC BY 4.0)

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Physics Letters B

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Qian, X., W. Chen, H. Gao, K. Hicks, K. Kramer, J. M. Laget, T. Mibe, Biselli, A. et al [CLAS Collaboration]. "The extraction of ϕ–N total cross section from d (γ, pK+ K−) n." Physics Letters B 680, no. 5 (2009): 417-422. https://doi.org/10.1016/j.physletb.2009.09.024