Parton Energy Loss Limits and Shadowing in Drell-Yan Dimuon Production
Abstract
A precise measurement of the ratios of the Drell-Yan cross section per nucleon for an 800 GeV/c proton beam incident on Be, Fe, and W targets is reported. The behavior of the Drell-Yan ratios at small target-parton momentum fraction is well described by an existing fit to the shadowing observed in deep-inelastic scattering. The cross-section ratios as a function of the incident-parton momentum fraction set tight limits on the energy loss of quarks passing through a cold nucleus.
- Publication:
-
Physical Review Letters
- Pub Date:
- September 1999
- DOI:
- 10.1103/PhysRevLett.83.2304
- arXiv:
- arXiv:hep-ex/9906010
- Bibcode:
- 1999PhRvL..83.2304V
- Keywords:
-
- High Energy Physics - Experiment
- E-Print:
- Phys.Rev.Lett. 83 (1999) 2304-2307