Abstract

It is shown that a recent extraction of the total cross section for pp→K+nΣ+ from inclusive K+ production data by the HIRES Collaboration [Phys. Lett. B 692 (2010) 10] is in conflict with experimental data on the exclusive pp→K+pΛ reaction. The HIRES result may be interpreted as an upper bound, which is not inconsistent with the much lower values that already exist in the literature.

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