Improved Measurement of the $\bar{d}/\bar{u}$ Asymmetry in the Nucleon Sea

NuSea Collaboration, R. S. Towell, P. L. McGaughey

Measurements of the ratio of Drell-Yan yields from an 800 \rm{GeV/c} proton beam incident on liquid hydrogen and deuterium targets are reported. Approximately 360,000 Drell-Yan muo…