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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.)

Physical factorisation scheme for PDFs for non-inclusive applications

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de Oliveira, E. G. [1, 2] ; Martin, A. D. [2] ; Ryskin, M. G. [2, 3]
Total Authors: 3
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil
[2] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE - England
[3] NRC Kurchatov Inst, Petersburg Nucl Phys Inst, St Petersburg 188300 - Russia
Total Affiliations: 3
Document type: Journal article
Source: Journal of High Energy Physics; n. 11 NOV 20 2013.
Web of Science Citations: 1

We introduce the physical factorisation scheme, which is necessary to describe observables which are `not completely inclusive'. We derive the formulae for NLO DGLAP evolution in this scheme, and also for the `rotation' of the conventional MSbar PDFs into the physical representation. Unlike, the MSbar prescription, where, for example, the gluon PDF at NLO obtains an admixture of the quark-singlet PDF, and vice-versa, the physical approach does not mix parton PDFs of different types. That is, the physical approach retains the precise quantum numbers of each PDF. The NLO corrections to DGLAP evolution in the physical scheme are less than those in the MSbar case, indicating a better convergence of the perturbative series. (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