arXiv subjects

B. M. Pirnay

Publications and source records attributed to B. M. Pirnay.

2 recordsLinked to original sources

arXiv2013

t3evol - Numerical Solution of Twist-three Evolution Equations

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 $g_2$. An arbitrary input is accepted for the initial distributions.

hep-ph↗

arXiv2011

Higher twist parton distributions from LCWFs

We report on the results of a recent work, where we explore the possibility to construct higher-twist parton distributions in a nucleon at some low reference scale from convolution integrals of the light-cone wave functions (LCWFs). These WFs provide one with a reasonable description of both polarized and unpolarized parton densities at large values of the Bjorken variable. Twist-3 parton distributions are then constructed as convolution integrals of qqqg and usual three-quark WFs.

hep-ph↗