DGLAP evolution equations
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The Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution equations are equations in QCD describing the variation of parton distribution functions with varying energy scales.[1] Experimentally observed scaling violation in deep inelastic scattering is important evidence for the correctness of the equations and of QCD in general.[1] The equations were first published in the western world by Guido Altarelli and Giorgio Parisi in 1977, and so are still sometimes called the Altarelli–Parisi equations.[2] Only later did it become known that an equivalent formula had been published in Russia by Yuri Dokshitzer in 1977,[3] and by Vladimir Gribov and Lev Lipatov in 1972.[4]
The DGLAP QCD evolution equations are widely used in global determinations of parton distributions, like those from the CTEQ or NNPDF collaborations.[citation needed]
See also
[edit | edit source]References
[edit | edit source]- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Yu. L. Dokshitzer. Sov. Phys. JETP 46:641 (1977).
- ^ V. N. Gribov, L. N. Lipatov. Sov. J. Nucl. Phys. 15:438 (1972).
Further reading
[edit | edit source]Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
External links
[edit | edit source]- Guido Altarelli (2009) QCD evolution equations for parton densities. Scholarpedia, 4(1):7124.
