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Volume 352 - XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2019) - Working Group 1: Structure Function and Parton Densiies
Probing the flavor dependence of proton's light-quark sea in the SeaQuest experiment
J. Dove* on behalf of the SeaQuest Collaboration
*corresponding author
Full text: pdf
Pre-published on: 2019 July 22
Published on: 2019 October 04
Surprisingly large flavor asymmetry of the light-quark sea in the proton was reported in deep-
̄ ū ratio ex-
inelastic scattering and Drell-Yan experiments. The Bjorken-x dependence of the d/
tracted from the Fermilab E866 experiment also revealed an intriguing drop at the highest values
̄ ū with improved ac-
of x. The Fermilab E906/SeaQuest experiment was designed to measure d/
curacy at high Bjorken-x. By detecting high-mass dimuon events produced in the interaction of
120 GeV proton beam with liquid hydrogen (LH 2 ) and deuterium (LD 2 ) targets, the SeaQuest
̄ ū ratio up to x ≈ 0.45. Data collection has been completed and we re-
experiment probes the d/
port the status of data analysis for SeaQuest. Two different methods for extracting the LD 2 /LH 2
Drell-Yan cross section ratios for 0.1 ≤ x ≤ 0.45 are discussed. These ratios are compared with
calculations using various PDFs.
Open Access
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