Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-09-17
Phys.Rev.D55:2584-2590,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages LaTeX, 4 figures included, uses psfig
Scientific paper
10.1103/PhysRevD.55.2584
The cross section for Drell-Yan pair production in the limit of small $x$-target is derived in the rest frame of the target hadron. Our calculation is based on the fundamental quantity $\sigma(\rho)$, the cross section for the scattering of a $q\bar{q}$-pair with fixed transverse separation $\rho$ off a hadronic target. As in deep inelastic scattering the result can be given in terms of integrals of $\sigma(\rho)$. This is consistent with well known factorization theorems and also relates higher-twist terms in both processes. An analysis of the angular distribution of the produced lepton shows that additional integrals of $\sigma(\rho)$ can be obtained in the Drell-Yan process, which are not measurable in inclusive deep inelastic scattering.
Brodsky Stanley J.
Hebecker Arthur
Quack E.
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