Asymmetries between the production of D+ and D- mesons from 500 GeV/c pi- nucleon interactions as a function of xF and pt**2

Preprint

4 January 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9601001

Abstract

We present asymmetries between the production of D+ and D- mesons in Fermilab experiment E791 as a function of xF and pt**2. The data used here consist of 74,000 fully-reconstructed charmed mesons produced by a 500 GeV/c pi- beam on C and Pt foils. The measurements are compared to results of models which predict differences between the production of heavy-quark mesons that have a light quark in common with the beam (leading particles) and those that do not (non-leading particles). While the default models do not agree with our data, we can reach agreement with one of them, PYTHIA, by making a limited number of changes to parameters used.

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All Related Versions

Version 1, 1996-01-04, ArXiv
Published version: Physics Letters B, 371 (1-2), 157.

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