Abstract

Measurements of the hadronic production cross‐section and distributions of charmed particles have been extracted from the measurements of prompt muons produced in 350 GeV pN interactions. The data indicate a charmed particle production cross‐section of 24.6±3.9 μb/nucleon. The measured energy distributions strongly favor central production over diffractive production, and do not support the hypothesis of a 1% “intrinsic charm” component in the nucleon. In addition, the data give a production ratio of μ−/μ+ = 1.10±.22, in good agreement with the ratio of 1 expected from central production of charm.

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