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.
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
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Pre-published on:
July 22, 2019
Published on:
October 04, 2019
Abstract
DOI: https://doi.org/10.22323/1.352.0011
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.