Production of J/ψ at large xF in 800 GeV/c p-copper and p-beryllium collisions

M. S. Kowitt, G. Gidal, P. M. Ho, K. B. Luk, D. Pripstein, L. D. Isenhower, M. E. Sadler, R. Schnathorst, R. Schwindt, L. M. Lederman, M. H. Schub, C. N. Brown, W. E. Cooper, H. D. Glass, K. N. Gounder, C. S. Mishra, J. Boissevain, T. A. Carey, D. M. Jansen, R. G. JeppesenJ. S. Kapustinsky, D. W. Lane, M. J. Leitch, J. W. Lillberg, P. L. McGaughey, J. M. Moss, J. C. Peng, D. M. Kaplan, W. R. Luebke, V. M. Martin, R. S. Preston, J. Sa, V. Tanikella, R. L. Childers, C. W. Darden, J. R. Wilson, G. C. Kiang, P. K. Teng, Y. C. Chen

Research output: Contribution to journalArticlepeer-review


The differential cross sections dσ/dxF for J/ψ produced inclusively in 800 GeV/c p-Cu and p-Be collisions have been measured in the kinematic range 0.30≤xF≤0.95 through the decay mode J/ψ→μ+μ-. They are compared with the predictions of the semilocal duality model for several sets of parton density functions. No evidence for a suggested intrinsic charm contribution to the cross section is observed. The ratio of the differential cross sections for Cu and Be targets confirms the suppression of J/ψ production in heavy nuclei at large xF.

Original languageEnglish (US)
Pages (from-to)1318-1321
Number of pages4
JournalPhysical review letters
Issue number9
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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