Unbiased Polarised Parton Distribution Functions and their Uncertainties
High Energy Physics - Phenomenology
2012-06-26 v2
Abstract
We present preliminary results on the determination of spin-dependent, or polarised, Parton Distribution Functions (PDFs) from all relevant inclusive polarised DIS data. The analysis is performed within the NNPDF approach, which provides a faithful and statistically sound representation of PDFs and their uncertainties. We describe how the NNPDF methodology has been extended to the polarised case, and compare our results with other recent polarised parton sets. We show that polarised PDF uncertainties can be sizeably underestimated in standard determinations, most notably for the gluon.
Keywords
Cite
@article{arxiv.1206.0201,
title = {Unbiased Polarised Parton Distribution Functions and their Uncertainties},
author = {Emanuele R. Nocera and Stefano Forte and Giovanni Ridolfi and Juan Rojo},
journal= {arXiv preprint arXiv:1206.0201},
year = {2012}
}
Comments
5 pages, 5 figures DIS2012 conference proceedings contribution Corrected typing error in Tab. 1