2013/07/04 by B. Pirnay, Pirnay, B. M.
Mathematics · #Differential Equations and Numerical Methods #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Numerical methods for differential equations
paper · pdf · doi:10.48550/arxiv.1307.1272
openalex publication_date 2013/07/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A program dedicated to the numerical solution of the evolution equations for twist-three multiparton correlation functions is presented. The solutions are obtained by direct integration on a discretized momentum fraction grid. Both flavor nonsinglet and flavor singlet evolution (in both C-parity sectors) can be addressed. Physical applications include single spin asymmetries and the subleading twist contribution to the polarized structure function g2. An arbitrary input is accepted for the initial distributions.