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Measurements of the Antiquark Flavor Asymmetry in the Proton by the Drell-Yan Experiment SeaQuest

by Kei Nagai on behalf of the SeaQuest collaboration

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Submission summary

Authors (as registered SciPost users): Kei Nagai
Submission information
Preprint Link: scipost_202108_00036v1  (pdf)
Code repository: https://www.overleaf.com/read/sdxyrmwnvwdw
Data repository: https://www.overleaf.com/read/sdxyrmwnvwdw
Date accepted: 2022-05-06
Date submitted: 2021-08-15 18:36
Submitted by: Nagai, Kei
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
Specialties:
  • Nuclear Physics - Experiment
Approach: Experimental

Abstract

The antiquark flavor asymmetry dbar/ubar in the proton gives an insight on the non-perturbative structure of the proton. The SeaQuest experiment measured the Drell–Yan cross section ratio of proton-deuterium to proton-proton to determine the antiquark flavor asymmetry dbar/ubar precisely in the range of 0.13<x<0.45. SeaQuest provides the evidence of dbar/ubar > 1.0 over a wide range of momenta. Some theoretical models reproduce this result.

Published as SciPost Phys. Proc. 8, 119 (2022)


Reports on this Submission

Anonymous Report 1 on 2022-2-7 (Invited Report)

Report

Nicely written and an important result from the SeaQuest experiment. Recommend to publish as is.

  • validity: -
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  • originality: -
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