Initial conditions for evolution of double parton distributions
Autor: | Krzysztof Golec-Biernat, Emilia Lewandowska |
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Rok vydání: | 2013 |
Předmět: |
Quantum chromodynamics
Quark Physics Particle physics Valence (chemistry) Scattering High Energy Physics::Lattice High Energy Physics::Phenomenology FOS: Physical sciences Parton High Energy Physics - Phenomenology Distribution function High Energy Physics - Phenomenology (hep-ph) High Energy Physics::Experiment |
DOI: | 10.48550/arxiv.1311.7392 |
Popis: | Double parton distribution functions (DPDFs) are used in the QCD description of double parton scattering. The DPDFs evolve with hard scales through relatively new QCD evolution equations which obey nontrivial momentum and valence quark number sum rules. Based on the constructed numerical program, we present results on the QCD evolution of the DPDFs. In particular, we discuss the problem how to specify initial conditions for the evolution equations which exactly fulfill the sum rules. Comment: presented at DIS2013 at Marseilles, France, 22-26 April, 2013, one reference added |
Databáze: | OpenAIRE |
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