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Nuclear dependence of Drell-Yan and J/ψ production in FNAL E866

  • R. E. Tribble
  • , M. E. Beddo
  • , C. N. Brown
  • , T. A. Carey
  • , T. H. Chang
  • , W. E. Cooper
  • , C. A. Gagliardi
  • , G. T. Garvey
  • , D. F. Geesaman
  • , E. A. Hawker
  • , X. C. He
  • , L. D. Isenhower
  • , S. B. Kaufman
  • , D. M. Kaplan
  • , D. D. Koetke
  • , W. M. Lee
  • , M. J. Leitch
  • , P. L. McGaughey
  • , J. M. Moss
  • , B. A. Mueller
  • V. Papavassiliou, J. C. Peng, G. Petitt, P. E. Reimer, M. E. Sadler, P. W. Stankus, W. E. Sondheim, R. S. Towell, M. A. Vasiliev, J. C. Webb, J. L. Willis, G. R. Young

Research output: Contribution to journalArticlepeer-review

Abstract

Fermilab E866 has measured the target-mass dependence of Drell-Yan and J/ψ dimuon production induced by an 800 GeV proton beam on targets of Be, Fe and W. Clear evidence of nuclear shadowing is observed in the Drell-Yan cross section ratios per nucleon at small x2. The x1 dependence of the cross section ratios provides a determination of the energy loss of ultra-relativistic quarks as they pass through cold nuclei. Preliminary results for J/ψ yields show maximum cross section ratios that are slightly less than 1 at an xF value near 0.1. The yield on heavy targets is much more strongly suppressed relative to light targets at larger values of xF.

Original languageEnglish (US)
Pages (from-to)761c-764c
JournalNuclear Physics A
Volume663-664
Issue number1-2
DOIs
StatePublished - Jan 31 2000
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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