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Accessing the gravitational form factors of the nucleon and nuclei through a massive graviton
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Accessing the gravitational form factors of the nucleon and nuclei through a massive graviton
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In contrast to the electromagnetic form factors of the nucleon and nuclei that have been extensively studied in electron scattering, there is no known way to directly measure the gravitational form factors (GFFs), the off-forward hadronic matrix element of the QCD energy-momentum tensor. I suggest exploring the possibility to use massive gravitons in beyond the Standard Model and General Relativity scenarios as a means to access the GFFs of the proton and nuclei at future TeV-scale lepton-ion colliders.
Forward citations
Cited by 2 Pith papers
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Mass radius and D-term of atomic nuclei in relativistic mean field theory
D-term of nuclei exhibits kinks at magic neutron numbers, showing strong sensitivity of mechanical properties to shell structure.
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Analytical expressions for quark gravitational TMDs are derived in the LFQDM, verified against standard TMD relations, and linked to transverse pressure and shear-force distributions.
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