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19 April 2024

» arxiv » hep-ex/9601001

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Asymmetries between the production of D+ and D- mesons from 500 GeV/c pi- nucleon interactions as a function of xF and pt**2
E.M.Aitala ; S.Amato ; J.C.Anjos ; J.A.Appel ; M.Aryal ; D.Ashery ; J. Astorga ; S.Banerjee ; I.Bediaga ; G.Blaylock ; S.B.Bracker ; P.R.Burchat ; R.A.Burnstein ; T.Carter ; H.S. Carvalho ; I.Costa ; L.M. Cremaldi ; C.Darling ; K. Denisenko ; A. Fernandez ; P. Gagnon ; S.Gerzon ; C. Gobel ; K. Gounder ; D. Granite ; A. M. Halling ; G. Herrera ; G. Hurvits ; C. James ; P.A. Kasper ; N. Kondakis ; S. Kwan ; D. C. Langs ; J. Leslie ; J. Lichtenstadt ; B. Lundberg ; A. Manacero ; S. MayTal-Beck ; B. Meadows ; J. R. T. de Mello Neto ; R. H. Milburn ; J. M. de Miranda ; A. Napier ; A. Nguyen ; A. B. d’Oliveira ; K. O’Shaughnessy ; K. C. Peng ; L. P. Perera ; M. V. Purohit ; B. Quinn ; S. Radeztsky ; A. Rafatian ; N. W. Reay ; J. J. Reidy ; A. C. Reis ; H. A. Rubin ; A. K. S. Santha ; A. F. S. Santoro ; A. J. Schwartz ; M. Sheaff ; R. A. Sidwell ; A. J. Slaughter ; J. G. Smith ; M. D. Sokoloff ; N. R. Stanton ; K. Sugano ; D. J. Summers ; S. Takach ; K. Thorne ; A. K. Tripathi ; S. Watanabe ; R. Weiss-Babai ; J. Wiener ; N. Witchey ; E. Wolin ; D. Yi ; R. Zaliznyak ; C. Zhang ;
Date:	4 Dec 1995
Journal:	Phys.Lett. B371 (1996) 157-162
Subject:	hep-ex
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.
Source:	arXiv, hep-ex/9601001
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