Determination of alpha_s from F_2^p at HERA
High Energy Physics - Phenomenology
2009-10-28 v2
Abstract
We compute the proton structure function F_2^p at small x and large Q^2 at next-to-leading order in alpha_s(Q^2), including summations of all leading and subleading logarithms of Q^2 and 1/x in a way consistent with momentum conservation. We perform a detailed comparison to the 1993 HERA data, and show that they may be used to determine alpha_s(M_Z^2)=0.120 pm 0.005(exp) pm 0.009(th). The theoretical error is dominated by the renormalization and factorization scheme ambiguities.
Cite
@article{arxiv.hep-ph/9506233,
title = {Determination of alpha_s from F_2^p at HERA},
author = {R. D. Ball and S. Forte},
journal= {arXiv preprint arXiv:hep-ph/9506233},
year = {2009}
}
Comments
24 pages, TeX with harvmac and epsf, 10 figures in compressed postscript. Final (published) version