Abstract
The string model of Artru and Mennessier predicts that the fragmentation functions for mesons containing heavy quarks are concentrated near fractional momentumz∼1, with width ∼1/μ where μ is the mass of the heavy quark.
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References
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See footnote on p. 11 of Ref. [6]
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Bowler, M.G. e + e − Production of heavy quarks in the string model. Z. Phys. C - Particles and Fields 11, 169–174 (1981). https://doi.org/10.1007/BF01574001
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DOI: https://doi.org/10.1007/BF01574001