# Global QCD Analysis of Pion Parton Distributions with Threshold Resummation.

@article{Barry2021GlobalQA,
title={Global QCD Analysis of Pion Parton Distributions with Threshold Resummation.},
author={Patrick Barry and C-R. Ji and Nobuo Sato and W. Melnitchouk},
journal={Physical review letters},
year={2021},
volume={127 23},
pages={
232001
}
}
• Published 12 August 2021
• Physics
• Physical review letters
We perform the first global QCD analysis of pion valence, sea quark, and gluon distributions within a Bayesian Monte Carlo framework with threshold resummation on Drell-Yan cross sections at next-to-leading log accuracy. Exploring various treatments of resummation, we find that the large-x asymptotics of the valence quark distribution ∼(1-x)^{β_{v}} can differ significantly, with β_{v} ranging from ≈1 to >2.5 at the input scale. Regardless of the specific implementation, however, the…

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## References

SHOWING 1-10 OF 26 REFERENCES

### Pionic parton distributions revisited

• Physics
• 1999
Abstract. Using constituent quark model constraints we calculate the gluon and sea–quark content of pions solely in terms of their valence density (fixed by $\pi N$ Drell–Yan data) and the known sea

### Quark-hadron duality in electron-pion scattering

Abstract:We explore the relationship between exclusive and inclusive electromagnetic scattering from the pion, focusing on the transition region at intermediate Q2. Combining Drell-Yan data on the

### Pion parton distribution function in light-front holographic QCD

• Physics
• 2020
The valence-quark distribution function of the pion has been of interest for decades; particularly, the profile it should adopt when (the large-x behavior) has been the subject of a long-standing