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 language | English (US) |
|---|---|
| Pages (from-to) | 761c-764c |
| Journal | Nuclear Physics A |
| Volume | 663-664 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Jan 31 2000 |
| Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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