A Collection of Polarized Parton Densities

TL;DR

This paper reviews and compares recent parameterizations of polarized parton densities, evolving them with the CTEQ package, to compile a comprehensive resource for spin physics research.

Contribution

It provides a systematic comparison of recent polarized parton density distributions and prepares them for integration into a standardized library.

Findings

Comparison of recent polarized parton distributions

Consistent evolution using CTEQ package

Preparation for a unified distribution library

Abstract

A significant number of parameterizations for the polarized parton densities have appeared in the literature. Using the CTEQ evolution package, these distributions have been evolved consistently preparatory to compilation into an integrated package in the spirit of PDFLIB by Plothow-Besch. Here, a comparison of a few of the more recent distributions are made. (Presented during the Workshop on the ``Prospects of Spin Physics at HERA'' held at DESY-Zeuthen, Germany, 28-31 August 1995.)