APS » PROLA » Phys. Rev. D » Volume 49 » Issue 9

Phys. Rev. D 49, R4317 - R4320 (1994)

D*± production in 250 GeV π±N interactions
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G. A. Alves et al. (Fermilab E769 Collaboration)
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Rapid Communication Received 10 September 1993

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 dσ / dxF distribution is fit by the form ((1-xF)n) with n=3.5±0.3±0.1, the dσ / dPT2 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.


©1994 The American Physical Society

URL: http://link.aps.org/abstract/PRD/v49/pR4317
DOI: 10.1103/PhysRevD.49.R4317
PACS: 13.85.Ni, 12.38.Qk, 25.80.Ls

* Now at: Pontificia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil.
† Now at: University of Illinois, Urbana, IL 61801.
‡ Now at: SSC Laboratory, Dallas, TX 75237.
§ Now at: CERN, CH-1211, Genève 23, Switzerland.
** Now at: Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
†† Now at: University of Oklahoma, Norman, OK 73071.

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