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D*± production in 250 GeV π±N interactions

Phys. Rev. D 49, R4317(R) – Published 1 May 1994
G. A. Alves et al. (Fermilab E769 Collaboration)


We report results from Fermilab experiment E769 on the differential cross sections of D*± charm vector mesons with respect to Feynman-x (xF) and transverse momentum (PT), and on the atomic mass dependence of the production. The D* mesons were produced by a 250 GeV π beam on a target of Be, Al, Cu, and W foils. The dσdxF distribution is fit by the form ((1-xF)n) with n=3.5±0.3±0.1, the dσdPT2 distribution by exp(-b×PT2) with b=0.70±0.07±0.04 GeV-2, and the cross section A dependence by Aα with α=1.00±0.07±0.02. These results are compared to the equivalent parameters for the production of pseudoscalar D0 and D± charm mesons.

DOI: http://dx.doi.org/10.1103/PhysRevD.49.R4317

  • Received 10 September 1993
  • Published in the issue dated 1 May 1994

© 1994 The American Physical Society

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