APS » PROLA » Phys. Rev. Lett. » Volume 83 » Issue 12

Phys. Rev. Lett. 83, 2304 - 2307 (1999)

Parton Energy Loss Limits and Shadowing in Drell-Yan Dimuon Production
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M. A. Vasiliev et al. (FNAL E866/NuSea Collaboration)
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Received 27 May 1999

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.


©1999 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v83/p2304
DOI: 10.1103/PhysRevLett.83.2304
PACS: 24.85.+p, 13.85.Qk, 25.40.Ve

* On leave from Kurchatov Institute, Moscow, Russia.
† Present address: University of Illinois, Urbana, IL 61801.

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