Two loop matching conditions on $\bar{\rm MS}$ parton densities
High Energy Physics - Phenomenology
2014-11-17 v1
Abstract
We discuss how the operator product expansion (OPE) can be used to derive asymptotic expressions for certain integrals. This yields operator matrix elements (OME's) which determine the matching conditions for parton densities across heavy flavour thresholds. Then we construct four and five-flavour densities from a three-flavour set via the AP equation using LO and NLO splitting functions.
Keywords
Cite
@article{arxiv.hep-ph/0005243,
title = {Two loop matching conditions on $\bar{\rm MS}$ parton densities},
author = {J. Smith},
journal= {arXiv preprint arXiv:hep-ph/0005243},
year = {2014}
}
Comments
Latex with six figures