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arXiv:2310.11568hep-ph

The mechanical radius of the proton

V. D. Burkert, L. Elouadrhiri, F. X. Girod

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Abstract

We present the first determination of the proton mechanical radius. The result was obtained by employing a novel theoretical approach that connects experimental data of deeply virtual Compton scattering with the spin = 2 interaction that is characteristic of gravity coupling with matter. We find that the proton mechanical radius is significantly smaller than its charge radius, consistent with the latest Lattice QCD computation.

arXiv comments
4 pages, 3 figures, 1 table
Journal reference
DOI
Subjects
hep-phHigh Energy Physics, Phenomenology hep-latHigh Energy Physics, Lattice nucl-exNuclear Experiment nucl-thNuclear Theory

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  1. Swirling Forces, Crushing Pressures Measured in the Proton 1 comment

    • This was the last one https://news.ycombinator.com/item?id=39163447 and a paper from last year https://arxiv.org/abs/2310.11568 and basically the same paper from three years ago (you'll recognize one of the plots from the last article) https://arxiv.org/abs/2104.02031

      drpossumView on HNParent context

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