Measurements of the EMC effect in few-body nuclei at large x

Understand

Recent data on the EMC effect from Jefferson Lab experiment E03103 suggest that the nuclear dependence of the high x quark distribution may depend on the local nuclear environment, rather than being a purely bulk effect.

• We briefly discuss the analysis and results of the E03103 experiment focusing on the light nuclei and high x region.
• In addition, we also discuss a future experiment at the upgraded 12 GeV Jefferson Lab facility which will further investigate the role of the local nuclear environment and the influence of detailed nuclear structure on the modification of quark distributions.