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Nucleon tomography and total angular momentum of valence quarks from synergy between lattice QCD and elastic scattering data

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arxiv 2409.17955 v1 pith:G5G3GQTL submitted 2024-09-26 hep-ph hep-lat

Nucleon tomography and total angular momentum of valence quarks from synergy between lattice QCD and elastic scattering data

Krzysztof Cichy , Martha Constantinou , Pawe{\l} Sznajder , Jakub Wagner This is my paper
classification hep-ph hep-lat
keywords extractionnucleonallowsangulardataelasticintroducelattice
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present an exploratory work on integrating lattice-QCD results with experimental data for elastic scattering. Within the framework of generalized parton distributions (GPDs), this approach allows for the extraction of detailed information about nucleon tomography and the total angular momentum carried by valence quarks. To accomplish this reliably, we introduce a new quantity, the "double ratio", which significantly reduces the systematic uncertainties inherent in lattice QCD computations. Moreover, we introduce a "shadow" term in the extraction procedure, which is sensitive only to lattice-QCD results. This term allows us to investigate the model dependence of the extraction, providing a more flexible description of the nucleon that goes beyond the previously considered bell-shaped distribution.

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Cited by 3 Pith papers

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