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arXiv · 2011.11615

Femtoscopy of the Origin of the Nucleon Mass

G. Krein·T. C. Peixoto
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Abstract

We study the prospects of using femtoscopic low-momentum correlation measurements at the Large Hadron Collider to access properties of the J/psi-nucleon interaction. The QCD multipole expansion in terms of the J/psi chromopolarizability relates the forward scattering amplitude to a key matrix element to the origin of the nucleon mass problem, the average chromoelectric gluon distribution in the nucleon. We use information on the J/psi-nucleon interaction provided by lattice QCD simulations and phenomenological models to compute J/psi-nucleon correlation functions. The computed correlation functions show clear sensitivity to the interaction, in particular to the J/psi chromopolarizability.

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G. Krein, T. C. Peixoto. 2020-11-23. Femtoscopy of the Origin of the Nucleon Mass. https://doi.org/10.1007/s00601-020-01581-1

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