Measurement of Drell-Yan electron and muon pair differential cross sections inp¯pcollisions ats=1.8TeV

1 January 1994

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 49 (1) , R1-R6
https://doi.org/10.1103/physrevd.49.r1

Abstract

We measure the Drell-Yan differential cross section

\frac{d^{2} σ}{dM} {d y |}_{| y | < 1}

over the mass range

11 < M < 150

GeV/

c^{2}

using dielectron and dimuon data from

\bar{p} p

collisions at a center-of-mass energy of

\sqrt{s} = 1.8

TeV. Our results show the

\frac{1}{M^{3}}

dependence that is expected from the naive Drell-Yan model. In comparison to the predictions of recent QCD calculations we find our data favor those parton distribution functions with the largest quark contributions in the

x

interval 0.006 to 0.03.

Keywords

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