F. Abe et al., MEASUREMENT OF DRELL-YAN ELECTRON AND MUON PAIR DIFFERENTIAL CROSS-SECTIONS IN (P)OVER-BAR-P COLLISIONS AT ROOT-S = 1.8 TEV, Physical review. D. Particles and fields, 49(1), 1994, pp. 1-6
We measure the Drell-Yan differential cross section d2sigma/dM dy\Abso
lute value of y < 1 over the mass range 11 < M < 150 GeV/C2 using diel
ectron and dimuon data from ppBAR collisions at a center-of-mass energ
y of square-root s = 1.8 TeV. Our results show the 1/M3 dependence tha
t is expected from the naive Drell-Yan model. In comparison to the pre
dictions of recent QCD calculations we find our data favor those parto
n distribution functions with the largest quark contributions in the x
interval 0.006 to 0.03.