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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Improving the Drell-Yan probe of small x partons at the LHC via a k(t) cut

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de Oliveira, E. G. [1, 2] ; Martin, A. D. [1] ; Ryskin, M. G. [1, 3]
Total Authors: 3
[1] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE - England
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil
[3] NRC Kurchatov Inst, Petersburg Nucl Phys Inst, St Petersburg 188300 - Russia
Total Affiliations: 3
Document type: Journal article
Source: EUROPEAN PHYSICAL JOURNAL C; v. 73, n. 3 MAR 2013.
Web of Science Citations: 5

We show that the observation of the Drell-Yan production of low-mass lepton-pairs (M less than or similar to 20 GeV) at high rapidities (Y greater than or similar to 3) at the LHC can make a direct measurement of parton distribution functions (PDFs) in the low x region, x less than or similar to 10(-4). We describe a procedure that greatly reduces the sensitivity of the predictions to the choice of the factorization scale and, in particular, show how, by imposing a cutoff on the transverse momentum of the lepton-pair, the data are able to probe PDFs in the important low scale, low x domain. We include the effects of the Sudakov suppression factor. (AU)

FAPESP's process: 12/05469-4 - Timely phenomenological studies relevant to the LHC
Grantee:Emmanuel Gräve de Oliveira
Support type: Scholarships abroad - Research Internship - Post-doctor