PPRC Seminars

The SeaQuest Experiment: Exploring the Anti-Quark Flavor Asymmetry in the Nucleon Sea

by Dr Arun Tadepalli (Thomas Jefferson National Accelerator Facility)

Europe/London
Universe

Universe

Zoom: https://cern.zoom.us/j/98750947196?pwd=N1RTS3EzazBha0tURVJOcEZKREFxZz09
Description
The Fermilab E906/SeaQuest is an experiment aimed at studying the anti-quark distributions of nucleons and nuclei. The experiment uses a 120 GeV/c proton beam extracted from the Main Injector at Fermilab to collide with various solid and cryogenic targets to study a variety of physics topics. The experiment takes advantage of the Drell-Yan process in order to probe specifically the high-x anti-quark distributions of the target nucleus. Comparison of Drell-Yan cross-section ratios of liquid hydrogen and deuterium allows SeaQuest to probe the dbar(x)/ubar(x) ratio up to a region of ~0.45 in Bjorken-x which is crucial for non-perturbative models that are aimed at explaining the origin of the nucleon sea. Recent results on anti-quark flavor asymmetry published in Nature and other ongoing analysis efforts will be highlighted in this talk.
Slides
Video