@article{df1bfc755a20479695be9811c893ba7e,

title = "All-order factorization for Drell-Yan cross sections",

abstract = "We outline all-order perturbative arguments, which show that factorization holds for Drell-Yan cross sections.",

author = "Collins, {John C.} and Soper, {Davison E.} and George Sterman",

note = "Funding Information: 1. Introduction. Despite their central importance \[1 \] in the interpretation of experiment, factorization theorems in QCD have had an uneven history. The original all-order arguments for factorization in e+e - h + X and hard hadron-hadron scattering \[2\] met with general, if uncritical, acceptance. However, the justifications given in the original papers are seriously incomplete. This incompleteness of proof is evident from the calculations of ref. \[3\]w, hich found infra-red divergences at non-leading twist, and from the recent work in refs. \[4 6\]. See also refs. \[7\]a nd \[8\]. What is missing in ref. \[2\] is a proper treatment of the effects of low-momentum partons. (A {"}low-momentum parton{"} we define to be one for which all its momentum components are much smaller than the center-of-mass energy, as viewed in the center-of-mass frame.) Exchanges of low-momentum partons include (at least at a perturbative level) the effects of pomeron exchanges. It was well-known \[9\],lo ng before the advent of tile QCD factorization theorems, that pomeron ¢~ Work supported by the US Department of Energy under con-tracts DE-AT06-76ER-70004 and DE-AC02-80ER-10712 and by the US National Science Foundation under contract PHY-81-09110. 1 On leave from: Institute of Theoretical Science, University of Oregon, Eugene, OR 97403, USA.",

year = "1984",

month = jan,

day = "12",

doi = "10.1016/0370-2693(84)90684-1",

language = "English (US)",

volume = "134",

pages = "263--268",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}