2013•Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsOpen access

Direct connection between the different QCD orders for parton distribution and fragmentation functions

O. Yu. Shevchenko

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Abstract

The formulas directly connecting parton distribution functions and fragmentation functions at the next-to-leading-order QCD with the same quantities at the leading order are derived. These formulas are universal, i.e., have the same form for all kinds of parton distribution functions and fragmentation functions, differing only in the respective splitting functions entering there.

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Key concepts: Parton, Quantum chromodynamics, Fragmentation (computing), Particle physics, Physics, Distribution function, Connection (principal bundle), Distribution (mathematics)