A-dependence of the charm production cross section in 300 GeV/c proton interactions |
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| Affiliation: | 1. CERN, 1 Esplanade des Particules, CH-1211 Geneva 23, Switzerland;2. Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, D-52056 Aachen, Germany;3. Frascati National Laboratory of INFN, Via E. Fermi, 40, 00044 Frascati (Roma), Italy |
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| Abstract: | The A-dependence of the charm production cross section is determined by measuring the yield of prompt single muons in a beam-dump experiment, using a 300 GeV/c proton beam on Al, Fe, and U targets. Assuming that the production cross section varies as Aα, we obtain α(μ+) = 0.79±0.12 and α(μ−) = 0.76±0.13 in the kinematical region xF≳0.1 of the charm. |
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