Testing the meson cloud in the nucleon in Drell-Yan processes
High Energy Physics - Phenomenology
2010-11-19 v1
Abstract
We discuss the present status of the \bar u-\bar d asymmetry in the nucleon and analize the quantities which are best suited to verify the asymmetry. We find that the Drell-Yan asymmetry is the quantity insensitive to the valence quark distributions and very sensitive to the flavour asymmetry of the sea. We compare the prediction of the meson cloud model with different experimental data including the Fermilab E772 data and recent data of the NA51 Collaboration at CERN and make predictions for the planned Drell-Yan experiments.
Keywords
Cite
@article{arxiv.hep-ph/9602213,
title = {Testing the meson cloud in the nucleon in Drell-Yan processes},
author = {A. Szczurek and M. Ericson and H. Holtmann and J. Speth},
journal= {arXiv preprint arXiv:hep-ph/9602213},
year = {2010}
}
Comments
written in ReVTeX, 26 pages + 10 PS-figures