Journal
PHYSICS LETTERS B
Volume 671, Issue 1, Pages 111-118Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.11.051
Keywords
Renormalization group; Two-loop evolution equations; Conformal symmetry
Funding
- RFBR [06-02-16215, 07-02-91557, 08-01-00686]
- Heisenberg-Landau Programme
- OSY Forschungsprojekt Juich/Bochum
- Deutsche Forschungsgemeinschaft [436 RUS 113/881/0-1]
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The results of a two-loop calculation in the Feynman gauge of both the DGLAP and the ERBL evolution kernels for transversely polarized distributions are presented. The structure of these evolution kernels is discussed in detail. In addition, the effect of the two-loop evolution oil the distribution amplitude of a twist-2 transversely polarized meson is explored. (C) 2008 Elsevier B.V. All rights reserved.
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