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- Title
DOUBLE PARTON DISTRIBUTION FUNCTIONS AND THEIR QCD EVOLUTION EQUATIONS.
- Authors
LEWANDOWSKA, EMILIA
- Abstract
Double parton distribution functions (DPDFs) are used in the description of double parton scattering. Their QCD evolution equations, known in the leading logarithmic approximation, obey non-trivial momentum and valence quark number sum rules. In this paper, we discuss the QCD evolution of the DPDFs, in particular, the specification of initial conditions for the evolution equations which obey the new momentum sum rules. We also present results on factorization of DPDFs on the product of two single parton distributions.
- Subjects
PARTONS; QUANTUM chromodynamics; NUCLEAR physics; EVOLUTION equations; VALENCE quark; DISTRIBUTION (Probability theory)
- Publication
Acta Physica Polonica B, 2014, Vol 45, Issue 7, p1481
- ISSN
0587-4254
- Publication type
Article
- DOI
10.5506/APhysPolB.45.1481