. 2014-10-01 Matthew K. Iyer, Yang Shi, Xia Jiang, June Escara-Wilke, Rachell Brendenis, Dmitry Borkin, Anastasia K.
2018-12-24 0.6 2017-03-10 0.6 2017-03-09 0.6. 0.6 2015-07-01 0.6.
Yocum, Dattatreya Mellacheruvu, Yuanyuan. Anastasia Yocum, Anton Poliakov, Vishal Kothari, Xiaojun Jing, Harika Gundlapalli, Xuhong Cao, Xiaoju Wang, Rohit Malik, PhD.Yuanyuan Qiao, Anton Poliakov, Anastasia K. Yocum, Yong Li, Wei Chen, Xuhong Cao, Xia Jiang, Arun Dahiya, Clair Harris, Felix Y. Feng, Sundeep Kalantry. Isenhower, L. 1999-01-01 The Fermilab dimuon experiment 866/NuSea measured Drell-Yan yields from an 800 GeV/c proton beam incident on liquid hydrogen and deuterium targets.
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Over 370,000 Drell-Yan muon pairs were recorded. From these data, the ratio of anti-down (d-bar) to anti-up ( u-bar) quark distributions in the proton sea is determined over a wide range in Bjorken-x. A strong x dependence is observed in the ratio d-bar/u-bar, showing substantial enhancement of d-bar with respect to u-bar for x.