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J/$\psi$p Scattering Length from GlueX Threshold Measurements

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arxiv 1911.12686 v2 pith:T7N2NO4V submitted 2019-11-28 hep-ph hep-exnucl-exnucl-th

classification hep-phhep-exnucl-exnucl-th
keywords alphadatagluexlengthscatteringthresholdaccessaspects
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abstract

The quality of the recent GlueX $J/\psi $ photoproduction data from Hall~D at Jefferson Laboratory, and the proximity of the data to the energy threshold, gives access to a variety of interesting physics aspects. As an example, an estimation of the $J/\psi$-nucleon scattering length $\alpha_{J/\psi p}$ is provided within the vector meson dominance model. It results in $|\alpha_{J/\psi p}| = (3.08\pm 0.55 ({\rm stat.}) \pm 0.45 ({\rm syst.}))$~mfm.

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Cited by 1 Pith paper

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  1. Faddeev equations for the $J/\psi\,NN$ and $\phi\,NN$ three-body systems in momentum space

    hep-ph 2026-08 conditional novelty 4.0 of 10

    A momentum-space Faddeev calculation with Malfliet-Tjon and HAL QCD potentials predicts phi-nucleon-nucleon bound states and no J/psi-nucleon-nucleon bound state.

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